How to fix any soldered PCB mechanical keyboard with broken LED & Switches [Keychron K6]

[@vincentdagani4961]

My guy. Because of you I was able to fix my keyboard. I had one key that didnt work and I used your bridge method and it worked. You have my eternal gratitude ❤

[@justcallmemark7837]

broke my keyboard coz of poor soldering skills ..this gave me motivation and knowledge to work on it again

[@dotnask0001]

You didn't really help me , because my keyboard is very much different to yours. You at least motivated me. Better than any other guide on this site. Great job.

[@R3TR0J4N]

faced the same unfortunate scenario of ripping my pcb solder pads due to excess heat inserted when disoldering a switch. this helped alot, thanks i appreciate your time and effort of posting this.

[@gg-ud5er]

same case here, how did you fix?

[@R3TR0J4N]

@@gg-ud5er used multimeter and had a copper wire to jump/bridge the switches Edit: its more convenient and faster

[@gg-ud5er]

@@R3TR0J4N is multimeter a must or should i just bridge the left ones with the surrounding switch sockets and the right ones with the diode

[@R3TR0J4N]

@@gg-ud5er I solder the bridge thru correspondent switch pins

[@user-qs7dp6yb2x]

That's probably like a quarter of a semester and whatnot. This was amazingly structured. Thank you! E: Yeah, this gave me enough of an understanding to fix my keyboard, jumpstarted from a neighbouring row. And I’ve got 0 knowledge on electrics. Thank you so much.

[@threestars9788]

Hey you know how people customize their switch like ( blue to red ) by replacing how that happens ? I mean without soldering!?

[@josefismaellaude3969]

@@threestars9788 there are hotswappable mechanical keyboards. yiu can change the switches whenever you like

[@FxMoDDz]

Excellent video, you helped me to understand how a keyboard PCB works and I was able to identify and fix the problem of my keyboard, thank you very much ❤

[@FBIMitch]

Thank you for your work and you helped me save my keyboard. I changed my Redragon K556 keyboard switch from brown to black and broke the PCB when I made the change. Four bottom row switches were no longer registering. After I saw your video, I was able to troubleshoot the issue and solder a wire to three horizontal switches. Great job. Of course, now my bottom switch is no longer hot switchable... but it works!

[@LucielAdv]

you drop your crown my King, just in my first attempt now i really fix my keyboard instead i need to wait 1 month to customer service and with another fee. THANK YOU SO MUCH!

[@MartinixProGamer]

bro u saved my ass, literally spent 6 hours trynna fix one key, and I managed to do it thanks to ur explanation at 10:05. such a god tysm.

[@aideno9595]

You saved me! I used the jump cable and it worked brilliantly. Thank you!

[@stxllr4687]

hello! this video really helped me understand the basics of how the PCB works (coming from someone who hasn't done any type of electrical work in her life, so props to you!) if you don't mind me asking, is there a chance that in fixing the LEDs, we also mess up the keypress? i found that whilst i fixed the LEDs the key press would register the wrong key (IE: key K would type L). not sure if this is because my problem is that the whole column's LED is broken, but any help or advice would be appreciated. otherwise, thanks for the video!

[@jiajinzheng3082]

Hey stxllr, if key registers another keys thats adjacent to it, it's likely that there is a short-circuit somewhere between the K's column wire and the L's column wire, so when you press K, electricity flows through K's row to L's column. Perhaps consider look around the two column wire, see if there's any place connecting the two column ?

[@stxllr4687]

@@jiajinzheng3082 Hello! Thanks for the advice, but I managed to fix my keyboard a while ago. I will just place how I fixed it here as well in case anyone else in these comments got a similar problem as mine: The problem was that there was a short between the column and the pin (which I think is what you mentioned?). Anyway, this meant that connecting to an adjacent column did not work. Thus, I had to figure out which pin the bad column must connect to. If anyone in the comments is wondering how I did this, I think the best idea would be to buy a multimeter to find the continuity between the pin and the column, as for my keyboard the pin and the column connection was one for one. Alternatively, simply using a wire to connect between a random pin and the non-working column and test the key. Keep doing trial and error until you get the right key for the given column. I used electrical tape to secure the wire as the pin was too small to solder with. Hope this might help someone else! :)

[@J0N...]

​@@stxllr4687 Hi, I have the same problem with my keyboard but instead of registering the key adjacent to it my keyboard registers the key 2 keys from the right. For example if I press E it also presses Y. So it types "ey". Same for "F2" "3" "s" "x" and the "alt" key. So basically the whole vertical row is broken. How did you fix your keyboard? I used a wire to connect the right pin (the pin that's lower) of the F2 key to random pins like you said. I'm not sure if I'm doing it right. Do you have any idea how to fix it or what the problem is?

[@stxllr4687]

@@J0N... I don't know much about the actual inner workings of keyboards/electronics, but it seems like the current (I don't know the proper term sorry) sent from the one key you presed (eg: letter E) is being sent to another column at the same time. For my keyboard, each pin corresponds to a different column. In your case the only thing I can think of is the circuit of column E somehow also connected to the circuit of the column 2 keys adjacent to it. Did you happen to make any modifications to the PCB? (EG: jumper wire, solder, etc)

[@J0N...]

@@stxllr4687 No, this happened randomly. I didn't spill water on it or anything. I will just try random stuff with wires and hope it works.

[@turboheadcrab666]

This is a great video that helped me massively to understand the inner workings of switches, LEDs and their relation to PCB. Thank you so much for your efforts! I don't think many people have an Arduino available to power the components for testing though. What could be a more common alternative?

[@jiajinzheng3082]

if you are talking about LED, you could probably use a series of batteries. Just make sure you have enough voltage to power it, and then positive to active pin, negative to ground of your LED, should still work

[@turboheadcrab666]

@@jiajinzheng3082 I appreciate your quick response. Do you reckon a 9V battery would be too much for an LED?

[@jiajinzheng3082]

@@turboheadcrab666 it’s normally around 5V

[@cjmillsnun]

Thank you for this. Because I don't believe in e-waste I actually resolved to sort out a razer keyboard I was donated. I replaced the switches with Kailh Deep Sea Pro Whales and filled it with foam. A lot of effort and then certain keys didn't work. A few bridges as per your video and I'm back in business. It's actually not a bad board now. The feel is pretty nice and it's quiet compared to how it used to be. I could get away with using it in an office.

[@vesar649]

BROO youve just given me the Knowledge to undo some serious mistakes ive made. i have a G Pro from Logitech and tghere I bujsted two rings / connections both of one key so i can now repair this hopefully. Keep the good work up man

[@DylanDavidVindasLopez]

THANK YOU SO MUCH!!! i have the left alt, windows and left ctrl of my keyboard not working, and now i know exactly what to do!

[@josed2828]

Dude really thank you, I fixed my keyboard thanks to your video.

[@rxve4422]

I'm so late on your videos but omg did u save me. I only own around 4 keyboards , I was switching out some switches on my favourite kb and I burned one (yes legit burned the metal contact off) and your method of using a jumper cable has saved me. Once again thank you, and you just earned a sub :))

[@fifoffjfufs]

perfect video! i fixed my kailh white box switch keyboard with just a tiny jumper wire.

[@DavidJimenez-ex5yr]

Great video!! worked for me! You have my eternal gratitude too

[@hugovellver5114]

First of you are awesome at explaining this, second , i spilled like a ton of water on my board and i had no understanding on how it works , my keys have a problem that when i press one it gets registered but it also presses some others adjacent , the problem is it is the whole keyboard not one key , for example num 0 presses 1, 2 and 3 ; u presses i , and space bar goes for v , and a lot others , how do i check and what should i check for? I read all the comments but no one has an issue like this i think , sorry to bother

[@jiajinzheng3082]

in cases where it register others key (including the key you presses itself) sounds like there are lots of short-circuit happening. You could start with all the adjacent one (eg: U and I) where they sits in a row first, those would be easier fix than others. could try a jumper starting with some working key on the same row (eg: you can break the connection on the PCB from U to I, and use a jumper instead jumper from Y to U, then a new jumper from U to I ), in the case of spacebar you could try the same method (break the broken connection and put a jumper on it) but it would be slightly trickier because i am sure each pcb wire differently around the spacebar area. As long as you are SURE they connect directly, you can always break that connection and replace with a jumper. But the amount of scrutiny is not trivial in your case, so I'd genuinely recommend you take it to those local "computer repair" shop and ask them for identifying the issue .

[@Andre-qx6bl]

this is what i"ve been looking for, thanks a lot bro. i understand how to make a bridge on switch slot that left and right feet pin are dead

[@raphaelcastro3785]

Thank you so much! it worked completely fine with 3 damaged keys on a keyboard i was already giving up.

[@ChristopherMichaelR]

thank you so much! I guess i burned out some of the pcb and was able to fix a few switches by soldering wire

[@epicwayne6202]

Thanks bro i will try to repair my keyboard,i changed the switches from my keyboard and i broke some parts of the PCB

[@anigame8916]

Very detailed and well explained, very good video! GJ

[@pinch-of-salt]

what kind of wire should I use for bridging the switches?

[@zanarkdev3904]

Hey! Loved your video! I have a similar problem on my keyboard, however in my case the whole QWERTY row automatically types even if there arent any switches on the board. I'm honestly confused why this is happening and ngl pretty depressed at this point as this is my favorite keyboard. Any help would be highly appreciated.

[@jiajinzheng3082]

sounds like there some other electronic component thats broken (eg: diode). I think you can try to trace from the beginning of the QWERTY row or even further up, see if there's some noticing damage on any component/wiring

[@dorothea258]

Have you found a solution to this problem? I have the same problem: my entire top row (F keys) spams the top row keys when I do as much as touch the top part of the pcb.

[@donqoixo9860]

i have the same problem..

[@damienburzum1030]

Hey what a nice video, I have a question: I have my Redragon Kumara keyboard but there is an issue with the LED of the entire row tab, q,w,e,r etc , the keys are working but the LED colors of that row are not working and only LED color green. How can I fix this? any suggestion?

[@jiajinzheng3082]

you could test to see if those LED are working properly first, using the method mention in the video. then if LED are indeed broken you just need to buy the correct LED that has your configuration and replace it. But If all these LED are working but not only shows Green when key is pressed, sounds like there may be some broken circuit that happens at (or all) other pins (except Green ) of the LED. Try to scrutiny from the end (eg: tab or "\" key) most likely there some issue happens at the beginning or the end of the row (or even higher upstream) could cause the symptom of entire row not working

[@damienburzum1030]

@@jiajinzheng3082 thank you so much it helps me a lot!

[@uwumarii]

My keys in a vertical row (5, T, G, B, space) doesn't work. I wonder if I can do a jump connection from left to right as shown in the video? I have a redragon keyboard

[@photon4280]

Perfect video! You saved my keyboard!

[@lindaoow]

This might be a stupid question, but what type of wire can be used for the soldering? can i just cut off from old broken stuff with thin wires with a metal string "core"? and peel the metal core to touch the parts where i solder in that case? Have zero electric knowledge but will re-watch this video and follow all steps, think i can manage. Very good and informative video! Thank you

[@likemikeg]

thanks a lot mate . i managed too fix an old keyboard for practice and fun but i still cant get a few of my keys to work. according to what you said my print screen ,insert , and delete button should be in a row. none of them work though. How do i go about fixing the start of the row ?

[@thienanle]

I have a broken Keychron, which lights up the whole row when I press down. On Reddit I also see some having this issue… but all switches, leds and resistors seems ok.

[@jiajinzheng3082]

that happens to me as well, check the the beginning of the row it may connects to some resistor or diode. check if there if there is broken connection or short circuit

[@bjornschmitz9247]

Thanks :) was able to fix my Keychron K2 this way!

[@camiz3994]

thank you! I learned a lot!!

[@urkoblanco7703]

You are my hero, spent a lot of money on Mods and broker a bridge.... Thanks mate

[@1dolladolla]

I had a question man, if I spilled water on my keyboard and my keys don’t register but my rgb works fine, you think replacing switches will fix my issue? Planning on rebuilding my K95 platinum

[@jiajinzheng3082]

theoretically, rgb will only triggers if the switch works fine. If your keyboard doesn't register the key you press. Short-circuit may happen elsewhere (not near the switch you press), In that case scrutiny on the entire PCB may be required

[@1dolladolla]

@@jiajinzheng3082 ah, I was thinking since the switch is two pin, one rgb and one for the key since it has power for the rgb theirs still a chance swapping the switch would fix the problem since the key isn’t completely dead. I was planning on removing all my switches cleaning my pcb and installing new switches would fix my problem.

[@NethPlayz1]

Sir i need help, my Keyboard's (ESC, F1, 1, 2, Q, W, A, S, Z, X, WIN LOGO, ALT) Key is not working.. sometimes my key working and sometimes they don't...THIS IS A BIG PROBLEM... please reply me i need your guidance. 😢

[@flrazvan]

question: my F1 and F2 sudenly stop to work. What is strange is that light is working but signal is not registered. I suppose separate circuits. But.. another strange think happen: if I hold another key pressed, F1 and F2 working. Do you have any sort of idea what may be. Because holding another key pressed in order to make f1 and f2 work doesn't make any sense for me. I use jumper tehnic on my old Logitech G Pro, but I have now a Keycool and is really nice on typing on it and I don't want to give up at it. Thank you so much !!

[@jiajinzheng3082]

it does seems weird in this case. because technically your F1 and F2 is working hardware wise. Sounds like a software issue, try to see if you are installed with software that does some sort of remapping ?

[@flrazvan]

@@jiajinzheng3082 II was checking that and no remapp key. I also bridge with a twiser with the key be;low and it work like this. So it seems I need to make a bridge, but still is so strange.,,

[@YURI-nj1rx]

thank you for the tutorial, mad respect; how did you figured it out which led uses your keyboard, im facing issues googling for a good led spare part for my keychron v1

[@psaico4254]

what do i do if a colum is broken?

[@sabersakin3685]

In my royal kludge rk61 a whole column of keys stopped working. 6, Y, H, N not working and are in a column. Also the led of H is not glowing. It's a pcb problem and can you help figure out how to solve this?

[@fuzzystudios7502]

Question: if none of the switches are pressed and the voltage is measured on the red wire at 6:40, would we expect to see around 0 volts in the system? And if a key is pressed we'd see around 5v? need some advice

[@soa0086]

My caps lock is always stuck at on or of , I cannot press to change it. Will this video help me. I saw about switch bridge too

[@lsg2432]

Please answer , my keyboard problem are if u presing one key it will presing other key too. If i change the switch will it fixed? And yeah my keyboard non hot swappable

[@dieuweryt1164]

Thanks so much, this fixed my broken pcb

[@genoedquiba7644]

What if i dont have a working key in my whole column keys, where can i jump my wire? My f9, 9, o, l, ., fn keys are all not working i dont know where could i jump my wires

[@jerich08]

my row of left shift to /?key is not working where do i start the bridge?

[@defeusers]

I got broken trace on the other pin of the switch,after reconnect broken trace it not respond at all,resistence did have on the rewired trace

[@lewisb.7526]

I got a full row of switches that show they are pressed but they are not, any solution for that please ? Very great video !

[@bruhnah4life]

I have a keyboard rexus mx9 and the switch not worked for 1 column, when i test the + and - from the switch with multimeter it says 0 , but if its not broken it says 0.2 please help

[@yurialves3635]

i have a whole column in my keyboard that triggers the next key in the right, how do i fix that ? its a hypper x alloy origins tkl

[@francois8395]

I have a hotswap broken. I soldered but doesnt worK/// I don't understand why doesnt work because electricity work between 2 switchs. (capslock and ).. Its the first Switch from the line :"Capslock". My bridge between capslock and A is ok but Capcslock doesnt wok. should I connect the other side to another switch? (the right side near the end)

[@melofluent]

I have Asus Rog claymore keyboard and it had 6 broken switches and I replaced them all and all of them seems to be working except the letter n. I tried connecting wire from it to the keys next to it but it still doesn't work is there anything I should try.

[@kenkaneki5989]

How can I fix the switches I bridged my a s d f g keys and now they word but for some reason It doesn't register if I press two key at the same time it just stops for example when I press sd to perform a downforward move in a game it doesn't register instead it just stop

[@chixx1593]

so idk what wrong with my keyboard it worked for like a week and suddenly RGB stopped working how can i fix it

[@doodsilog]

Hello, you explained it very well thank you,. I just have 1 question,. My Hp mechanical keyboard does a thing where my "0" "p" "L" and "." are not working unless I press the keys beside it on the left side. like P will only work if I press O along with it. but the thing does not work if I try doing it on the right side. the keys on the right of the said KEYS are still working fine. I just cannot use them to trigger the broken keys like I do on the left side ones. will key bridging work on my keyboard problem? thank you in advance

[@Tim47-s8i]

Hi, I have same keyboard and on 1 key LED are broken (punched keyboard during rage Only blue light works. Which led size should a replace via soldering?

[@bacotanonline.id2362]

hi, can this method be used for all types of mechanical keyboards?

[@jiajinzheng3082]

yep, as long as its not the old school keyboard which use membrane with silicon dome. Modern keyboard PCB design should be quite similar.

[@eyalyonai4510]

Hi my spacebar connection to the motherboard died and i wanted to use a jumper between it and the second spacebar thats located on the stabilizers, is it possible?

[@eyalyonai4510]

Edit: fixed it, all I needed to do was rebind my key using powertoys

[@pinkster112]

I messed around with a soldered switch of my Hyperx alloy core, i had to desolder it to remove it and when i put it back the RGB led it didn`t work anymore(Luckily the key press was ok). I think it doesn`t light up because i broke the connection like you said on the MB. Would connecting each pin(it has 4 in a line) to the same pin of another switch fix it ? I guess it will have the same rgb color as the other one but woult it work?

[@AndreaTosk]

Please help me, I think you're the only one who can save me. Got a 65% mechanical keyboard, omw to repair a backlighting issue. A huge backlighting issue. Basically it's totally not working, no backlight anywhere, but the switches are all working and the keyboard works fine. Should i start from the first switch you told to check? I got no schematics of the pcb, don't know what could be the problem

[@jiajinzheng3082]

Hey Andrea, if the entire backlight is not working, I speculate the wire closest to the chip (or even the chip leg pin) is malfunctioning. However, those points are a bit delicate, as it could mess up other components if its not done correctly. I suggest to bring it to computer repair for a scrutiny, as they have the probe and can easily tell you where problem is.

[@whitewhite9743]

Thank you for making this video. Liked it. I've got the same keychron K6 keyboard (hot-swappable), and I torn-off the "TAB" key hotswap socket.. and cannot quite figure out where it connected to. All the other keys work perfectly fine, except for the "TAB" key. I'd be very grateful if you could teach me/ give me some hints. Thank you in advance!

[@jiajinzheng3082]

Hey, try to trace it the wire (13:06 in the video) and solder a jumper with it. Or you could use a cutter to scratch the surface of the wire to expose those copper under and then solder your new socket onto it (just be careful with this method, you will need to ONLY expose the wire thats connect to the hot swappable socket, scratching adjacent wire could result in short-circuit). So if possible i would recommend to trace it and solder jumper, it's safer that way

[@kenji6615]

Hey! Do you have a tip to clean a hotswap pcb board? It's not really dirty though, just a bit of dust and nothing else. Any words you said would be much appreciated ☺️👍.

[@jiajinzheng3082]

Thanks, i would suggest to try out those cleaning gel or slime. Super effective and cheap 😉

[@josedasi6768]

I need some help I have a keychain k6 and recently I found on of the white leds had snapped, I’m not sure how but I need to get it replaced Where would I find a replacement led for this keyboard?

[@RacoonTheGrayCat]

thank you for the video. i got issue at my keychron k2 all top row cant work. When i click it doesn't input rather change color to white. i try to bridge it but didnt show some change can you help me?

[@MyAtreYo]

I need help i have problem with overheated one part on my redragon k530 I have photo if u give me e-mail or something i can send u but its small something with no marks on them and have on both sides 4 legs , this part overheated a lot keyboard leds work and switch work but its so fast overheated

[@arrendor]

Hi, I dropped my keyboard and now just my space key is not functioning properly. Sometimes I have to press it very hard for it to work and sometimes it is normal. What kind of problem do you think I have? Keyboard: HyperX Alloy Origins

[@elstukov]

Hey man thanks for the video. Specially for the LED part which is what I didn't know. Question... what do you think are the odds the 6028 RGB led model is the same as for the Ducky one 2 mini keyboard? phisically they look the same... and I want to believe many keyboards use the same model I want to buy some and try replacing some. This is because one of my LEDs died, saw some oxidation in the pins and I think is shorted... then other 3 LEDs stay lit all the time... 2 of the 3 do change colors when I specify one but not the other... I think they're dying.

[@jiajinzheng3082]

Hey, I guess what RBG model is used depends on where the manufacturer base, those that base in china is likely to use same model, but no guaranteer. I think it wouldn't hurt to buy a few to test it, just make sure the configuration is the same as your other RBG on the keyboard (use the method mention in the video) .

[@seamooncosplay]

I'm having an odd issue where i have a broken key next to the shift key, i tried soldering it to a diode and it works but i can't get the keys secondary funtion after pressing shift, it only works with left shift but not right. the key is "/?" and can only get / when pressing down shift

[@trevorosborn9572]

Great vid

[@fffaccini]

what´s the model of those LEDs?

[@LittleMew133]

Excellent explanation. Learned so much. Question: if my switch malfunction in the same (slightly-diagonal) column, what does that mean? Since they're in a column, and not row - does the same principles still apply? The column includes 5 keys: 8 , i , k , , , and alt. These keys used to work sometimes but now completely non-responsive. The F6 (in the same column) used to not work but now it does. I haven't done anything much to the PCB besides putting masking type to the back side and put some foam in the case. I did use a bit of force to close the stuffed case.

[@WinterV8]

found the answer of your problem bro? i have this problem too rn

[@LittleMew133]

@@WinterV8 Sadly still no, I'm taking the keyboard to computer shop maybe they can take a look

[@jiajinzheng3082]

Hey. @Blah @Winter, Same principle should apply on the column, but its a bit tricky as the column often connect to other component (eg: a diode or one of the RGB pin), so it may be hard to find where it actually breaks. @Blah Sounds like there's maybe some disconnection between F6 and 8, see if you can spot that.

[@wildoutlawz6898]

Have you guys figured this problem out? I have the same problem with my keyboard at the column of F1 to Alt

[@LongGia-sv4gy]

what if i had 1 dead key (i replaced 4 switched aleady and still not work) and the hotswap is totally normal😅

[@cheesefries6616]

My whole 4th row keys don't register. Is it still possible to fix that?

[@jiajinzheng3082]

May still be possible, try to see if the first key, or any upstream connection is broken

[@EmtrixPacifica]

Hey, I've been rewatching your video many times but I still can't find a solution to my problem. I burned the pads on my "" and "9" key with my iKBC CD87. I tried bridging to the switches next to them and in the column ("I" for "8" and "o" for "9") but they input key combinations like "[u60" for "8". Can you help me out with this?

[@dochi199x]

I still confuse about my keyboard, my esc, tab, caps, shift, and ctrl are broken, try to jumper but no luck, any solution? looks like it line is broken.

[@jiajinzheng3082]

hey, if you believe its the line thats broken, try use the method trace the broken line first then try jumper, but sounds to me its vertical grid thats faulty. Try scrutinise the vertical line and look closely which two components are connected.

[@yanxianghuang7482]

my switches work when using the connecting it with metallic tweezer but the when connecting actually clicking the switches it does nothing, I have tried wiring it to another switch but still nothing happens, I have changed switches as well Also I am missing a few metal rings and unsure wear to connect them, anyone have any suggestions

[@donovancoral4652]

Hello! Very helpful video! I have a question: I have my Rakk Ilis keyboard but there is an issue with the LED of the entire row, the keys are working but the white LED of the row are not working and only the reds and blue. I found that there is a damage on the pcb near the left pin switch socket. How do I fix the LED row problem? To sum it up: all working keys, only the white led of the entire row is not working due to the damaged pcb Thank you!

[@jiajinzheng3082]

Check around the green pin (or the wire that goes in that pin), because white light is produced while all three colours shine.

[@donovancoral4652]

@@jiajinzheng3082 thank you!

[@lorenzrufino7818]

how to fix mech keyboard when i press any key in top row it will all pressed at the same time.

[@jiajinzheng3082]

try to see if there is a damaged (or disconnected) diode or resistor somewhere along the row usually this happens at the beginning or the end of the row.

[@lorenzrufino7818]

@@jiajinzheng3082 how to check it? can i use tester?

[@rayyanramadhan5692]

Hey man love the vids !!! I have some question if you dont mind, so i accidentally spill my drink to my keyboard but i immediately unplug clean it and dried it for a couple hours. And when i plug it back on the keyboard works perfectly fine. But two weeks later my enter key is not working so i bind my del key as my enter key with the keyboard software. And then two days later the entire row of "Capslock a s d f g... till enter" is not working the led didnt lit up when i press it either. Any information for my problem ? I would really appreciate it since i didnt have the budget to buy a new keyboard i might try to fix it Thank You So Much, Much love

[@jiajinzheng3082]

Hey Ray, since its the "Enter" key thats causing the problem and the whole row that is not functioning sit on the same row as the "Enter". I suspect there is a wired burned / or damaged some where around Enter key, could you scrutinize the Enter key ? or try a "jumping wire" mention in the video to see if it can get the Enter key working

[@nixxgg]

My keyboard RGB has a problem. Even though I turned off the RGB the NUM2 and NUM8 LED was not totally turned off, I pull off the keycap and I can see under the switch that there was a tiny light the color RED and GREEN was still turned on. Another problem was the blue color of NUM2 was weak that's why the color is out of sync. Are my LEDs busted? Can I still fix it?

[@jiajinzheng3082]

Hey Nikko, first, test the RGB in isolation with the method mention in the video (touch each two pin, and observe the light intensity see if it shines through fine). And the problem sounds like there is a leaking electricity (current) some where in your keyboard. Could you try to see if you can find any damage connection it near the key where the RGB problem occur ?

[@krostogaming]

Sir, my keyboard’s (2,W,S,X) key is not working .. sometimes they all work and sometimes they all don’t… i always have to hold the one of the keys to work again and when one the keys starts working then all the keys starts working and when one of them stops working then all of them stop working… plz reply i need your guidance plz🙏

[@jiajinzheng3082]

Hey, Krosto thanks for reaching out, and so sorry the late reply, just saw your comment now. By the sound of it, it does seems like one of the connection being loosen, and if for your keyboard that column of the keys are interconnected, that would mean any loosen connection within the same circuit could have caused the problem. it's high hope for your keyboard to be fixed, given it works intermittently, Could you please use the method I describe in the video to trace the connection of the that vertical circuit of the column (2,W,S,X), Starting from the anything upstream that connects to the key "2" > then connection between key "2" to "W" including any connection in between, all the way down to the downstream of "X" where "X" connect to. In theory connection loose in the entire circuit could have caused it, but given you probably use "ASWD" very often, i would suggest start sourcing the cause from the connection between the keys. And you could simply use a twiser to "gently" move the any electrical component that's connected to see if there is any spot that's a bit "shaky", and if you are able to find it, then it could be the point of the loosen connection, then simple solder it back, or solder a wire jumper (as mentioned in the video) to it's direct connected component. Or if it's just a very simple loosen pin, even tapping it back tightly may work. Hope this help :)

[@krostogaming]

@@jiajinzheng3082 thanks for your reply. i’ll follow what you said 👍 but now i realised that F1,2,w,s,x,alt are in same row behaving like what i told you before…but when i opened it …it didn’t work by using a tweeser..but when i used multimeter ..then they all have the continuity and the keys were working when multimeter was used to short the keys

[@krostogaming]

@@jiajinzheng3082 but you didn't mention how to use jumper in vertical row🙂

[@jiajinzheng3082]

Hey @krostogaming, Thanks for replying again. I want to clarify that I'm not a professional in electronics or keyboard expert. From my observations of the three keyboards I own, I've noticed that the vertical connections do indeed vary - some are linked to a diode, while others connect to an LED. That's why I didn't include it in my video, as the specifics might not apply to all keyboards. Additionally, I want to touch on the use of a 'jumper'. While it can be a useful tool for re-establishing connections in cases of damaged or broken wires, it's not a one-size-fits-all solution, especially for issues related to broken components or microchips. If you can't spot the loosen or broken connection easily, it might be a bit out of my expertise to provide a solution. In these instances, I would recommend consulting a local electronics specialist for a more thorough examination. I'm sorry I can't be of more assistance in this matter.

[@krostogaming]

@@jiajinzheng3082 you don't need to be sorry bro,, i respect you. but when i was going to do some bridging in my keyboard,,, my dad and me are medical engineers and he told me 'be careful before doing that if the pc and keyboard are connected make sure you don't blast the keyboard and pc while doing that coz you're not a professional to find the exact point of loosen connection"" and then i got scared and decided not to do that ... but i appreciate your advise man,,

[@benjapizarro981]

hey man, nice video!, i have a question, my rk61 works fine on bluetooth mode, but when i connect it trought usb, only the rgb works and no single key works, ive tested it on another computer and cable and nothing :/ what could it be?

[@jiajinzheng3082]

that does sound like the there's some leaking issue around the USB port to me. Try to trace from USB port to the chip, see if there is some damage ?

[@sezer3671]

Bro, plz tell me what is your keycaps model?? its look like soft and shiny. Like old keyboards. I want this caps

[@jiajinzheng3082]

Hey, mine is just some SA profile PBT key caps. You if want shinny you could go with abs. And I got them from a Chinese keycaps store. Pretty sure you could find those easily

[@sezer3671]

@@jiajinzheng3082 By the way, thank you for the video, one of my SMD LEDs gives very little red light. I will try to fix it soon

[@izumi8834]

hi is it possible to change a single backlight led on a mech keeb into a rgb??

[@jiajinzheng3082]

probably no, because typically rgb has 4 legs and it kind of need the microchip to control the color

[@kindu5166]

Tried bridging my keyboard but once i did it keeps on pressing the same key until I press another working key then does not Activate the bridged key anymore. Any tips on how to fix this?

[@jiajinzheng3082]

Maybe try test it with a wire (touch the two pins with a wire) before you bridge. Your case does sound like some diode or resistor broken somewhere near the switch.

[@josefismaellaude3969]

i hope you notice my comment. im having trouble on my pcb when using a switch. when I press 1 or 2, it also presses the left most key. but if i just use a wire and touch the left and right contacts of the switch, it only presses 1. i don't think it's because of a faulty switch coz my switch works fine on other keys for. only on the side of the board

[@jiajinzheng3082]

could you plz elaborate more about what do you mean by "left most key" ? and yea if your switch can register, meaning its nothing wrong with the switch.

[@josefismaellaude3969]

@@jiajinzheng3082 actually now the problem is whenever i press a switch in the third column it also press a key on the first column on the same row, e.g., when i press W it will also press tab key, when i press S it also presses Capslock key.

[@jiajinzheng3082]

@@josefismaellaude3969 yep it does sound like short circuit somewhere. Assuming your keyboard is wired up the way i describe in the video, each time you click on a key the left most column think its being pressed as well. faulty area could be quite upstream try to trace the left most column and see if you could find any faulty area

[@harryhartawan6477]

What if my vertical keys are broken? F2, 2, W, S, Z, Alt.. how i should jumper it? Thanks

[@jiajinzheng3082]

Those are tricky, you can only bridge between the to connected component (no longer switch pin to switch pin as they aren't connected directly like the row does ). Sometime weird thing happens to the column because of a single faulty component (diode or resistor) if you could find that faulty one , you may not even need bridge

[@harryhartawan6477]

@@jiajinzheng3082 do u have a reference how to find the faulty one (diode or resistor)?

[@anarchy9747]

Hello, I accidentally scratched the top part of the PCB(where you put the switches) and now the Bluetooth is not working, is it because of the scratch or is it something else?

[@jiajinzheng3082]

scratched as in you damage the wire / connection ? if you believe that scratch has no effect on the any connection point or wire. Then try test around blue tooth module and chip which that blue tooth pin connects to

[@anarchy9747]

And if you don't mind but where is the Bluetooth module located?

[@anarchy9747]

The scratched PCB is located underneath the spacebar and i think someone said that the scratch borked the trace.

[@ashleyuhhh7753]

i switched my key switches and i do not have a switch remover and i removed the switches and the circuit board is chipped right below the hole in the middle and now some numbers/letters won’t work

[@jiajinzheng3082]

in this case solder a jumper / bridge would get them to work again

[@extremelyangryman2583]

Hey man I did what you exactly did here. The column(or row) of dead keys lit up, but the problem is... Whenever I press them, its returning the wrong output, mostly from the key where i tapped the jumper.

[@jiajinzheng3082]

Have you tested them working just fine before you taped? That happens to me a few time, was due to Short-circuiting. I fixed it by basically just double checking and making sure the pin is only touching the wire I want

[@extremelyangryman2583]

@@jiajinzheng3082 not sure what you mean here but I have 4 dead keys (6,y,h,n) to begin with, no LED, no response. Then I made a jumper from the 5-key row to complete the circuit. LEDs light up and keys respond. But the problem is... keys are outputting the wrong letters/numbers, particularly from the rows where I connected the jumper from.

[@jiajinzheng3082]

@@extremelyangryman2583 oh I guess that ‘s the column not working for you. Its bit harder than the row. As column jumper can’t just be soldered to the adjacent column mentioned 12:30 in the video. Normally they hook up with other electronic components (unlike the horizontal row). I guess in that case more troubleshooting needed

[@extremelyangryman2583]

@@jiajinzheng3082 yeah that's what I thought. maybe it's time for me to get a new keyboard. hey I appreciate the help man! and more power to your channel.

[@killertoseyt3922]

My keyboard is a wireless then it suddenly lose all power, I try charging it but no light indicator as if it was ded, can someone help me please 😭

[@makihorikita2075]

Hey man , i wonder since my keyboard on Left CTRL and Windows key does not work , when tested it says that left ctrl and Windows key do not input . The other key works fine since the line from spacebar to left alt working fine , can you help the problem ?

[@jiajinzheng3082]

it does sound like one of the problem i describe in the video 10:17. You can test to see if the left window bridging to the left alt key (I assume they next to each other) will work. If they do, then you can solder a bridge on it. You can fix the left CTRL key this way as well once if you fix the left windows

[@stealthzz3982]

i have this well thought i did on my windows key but when i pressed it harder it registers so my windows key needs new switch and i have got the other ones that broke wired to another key and they now work

[@aleksandarilic4386]

@jiajin zheng If the whole column doesn't work, how I can fix that?

[@aleksandarilic4386]

I tried to bridge all these switches and when I did that my keyboard works on the laptop as I expected but on my desktop whole column don't work

[@jiajinzheng3082]

@@aleksandarilic4386 that’s weird. Your keyboard should have no impact on your desktop.

[@KriGeta]

My F9, F10, F11, P, :, and ? keys sometimes work and sometimes do not. please give me some advice

[@xaron131]

hello what if do for that mini red thing next to switch broken??

[@jiajinzheng3082]

You mean the switch pin that connects to the vertical line of the grid?

[@xaron131]

@@jiajinzheng3082 yea :)

[@jiajinzheng3082]

@@xaron131 I did mention in around 08:20 ish. Basic idea is that, if you could find where it is connecting directly onto, and if you know theres the faulty connection then you could solder a jumper there. Just make sure you don't skip component (often there will be diodes and resistors). If it is faulty component , then jumper won't help you may need to replace that.

[@xaron131]

@@jiajinzheng3082 and where i can get that ic

[@jiajinzheng3082]

@@xaron131 ic, you mean component (diodes and resistors) ?

[@peiceoftoasttoast1462]

so my cat peed on my keyboard and now my( esc 1 2 ` tab caps shift ctrl) lighting is off/ wrong color and my one doesn't work at all should I but a new switch or do you think that my 1 is still fixable

[@jiajinzheng3082]

I reckon try to source the cause first, it could be a broken circuit somewhere instead. If you found out its of the faulty switch that cause the problem then you could probably replace that switch

[@peiceoftoasttoast1462]

@@jiajinzheng3082 ok will do:D

[@yosstory_official]

Thanks bro, i can save $50 😅

[@salman_3833]

nothing wrong with clickys, just that cherry/gateron blues suck