Laptop comes ON but no picture, Bios flash update guide

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Electronics Repair School

Electronics Repair School

Күн бұрын

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@tinkmarshino
@tinkmarshino 3 жыл бұрын
Just a quick thank you Sorin.. I just turned 69 years old on the 6th of may and you have taught me so much over the last two years that I can never repay.. Carry on my friend.. and thanks again!
@samsonkasumba78
@samsonkasumba78 3 жыл бұрын
i have fallen in love with this guy just by watching 1 video...i wish he was my dad...we wud be repairing stuff together...i have gone all over youtube and back to find someone with good repairing skills to learn from...i guess i just found my guy
@danielsims5771
@danielsims5771 4 ай бұрын
You and I are in the same Watsapp group! I love this Man too. His personality is so fascinating.
@adrianteo5844
@adrianteo5844 3 жыл бұрын
Multa sanatate.. sunt foarte onorat sa te urmaresc.. as fi dorit sa te descopar mai de mult timp.. dar niciodata nu este prea tarziu..am urmarit aproape toate reparatiile .. WOW.. am invatat atat de multe lucruri utile.. un adevarat PROFESOR
@electronicsrepairschool
@electronicsrepairschool 3 жыл бұрын
Multumesc :D
@danielsims5771
@danielsims5771 4 ай бұрын
Honestly I love you Sir and I have seen that many people love you too because of your personality and great skills. Thanks a million times
@kqsystemzrecordings
@kqsystemzrecordings Жыл бұрын
this was the best video I seen for this particular issue.
@ToolboxDiaries
@ToolboxDiaries 3 жыл бұрын
welcomeback Sorin.. from philippines here..
@achcom312
@achcom312 3 жыл бұрын
Gud am sir need pa ba ng laptop tech dyan ,,apply ako
@SiETechNotebookReparatur
@SiETechNotebookReparatur 3 жыл бұрын
Hi Sorin, thank you for being attentive to this second-mosfet problem. However, while a gate-short can indeed give this failure, in practice they are almost always drain-source short. The reason why the gate drive is then turned off by the BQ-IC is the MosFet Short Protection feature. Quote from the datasheet: 8.4.18 Inductor Short, MOSFET Short Protection The BQ24725A has a unique short circuit protection feature. Its cycle-by-cycle current monitoring feature is achieved through monitoring the voltage drop across RDS(on) of the MOSFETs after a certain amount of blanking time. In case of MOSFET short or inductor short circuit, the over current condition is sensed by two comparators and two counters will be triggered. After seven times of short circuit events, the charger will be latched off and ACFET and RBFET are turned off to disconnect adapter from system.
@AnonymousRepair
@AnonymousRepair 3 жыл бұрын
Yip 100%
@asv5769
@asv5769 3 жыл бұрын
to be more clear to others, ACFET is the first MOSFET and RBFET is the second input MOSFET.
@IsaacOLEG
@IsaacOLEG 3 жыл бұрын
Hello, I amtrying to understand the Mosfet drivers, why an how (find a very neat complete curse on Power Mosfet drivers kzbin.info/www/bejne/pZfCp2WEastqbpo) I get about half of it, lets say... what is meant by "a certain amount of blanking " please ? thanks. I want to understand what makes the charging port closed in case of first mosfet bridged drain-source. I undestand that due to the different possible configurations there is no universal answer. but I have that on an Asus X540L . thanks for reading me ,)
@adedeky8976
@adedeky8976 3 жыл бұрын
@@asv5769 TERIMAH KASIH ,, SAYA BARU TAHU JUGA
@premKumar-rw6kw
@premKumar-rw6kw 3 жыл бұрын
What a clean Justification of the fault in pin point...Great Man
@MrDinakdakan
@MrDinakdakan 3 жыл бұрын
Wow just like that, meanwhile I desolder bios reprogram with external programmer, good to see you back, need mroe vidoes
@ANASABUBACKER
@ANASABUBACKER 3 жыл бұрын
i used this method. worked perfectly. thank you Sorin Uncle.... GOD BLESS YOU
@randhawaharjeet3483
@randhawaharjeet3483 3 жыл бұрын
From the experience of your previous videos I thought that you will say it's a graphic issue. 😀😀😀. But a nice and simple solution. Thanks a lot teacher... 👍👍
@Mr.Smith_Mr.Wesson_andMe
@Mr.Smith_Mr.Wesson_andMe 3 жыл бұрын
YES, exactly same thought 😎
@abcdude8784
@abcdude8784 2 жыл бұрын
I got all my satisfying repair experience because of your videos... Thank you
@arnoldeduardodesousatulomb6395
@arnoldeduardodesousatulomb6395 3 жыл бұрын
Hi Sorin am a big fan thanks for all the knowledge (South Africa)
@AbrahamFoamXgen
@AbrahamFoamXgen 3 жыл бұрын
You are like a magician. Awesome job.
@Vinnie2x
@Vinnie2x 3 жыл бұрын
Excellent Zorin! I've got several units with shorted mosfets that do not charge and look forward to you SHORTING the 1st and 2nd to Further Your Explanation. NICE! thank you
@kidsaccount4575
@kidsaccount4575 3 жыл бұрын
The good thing about Hp laptops- They have error blink codes on startup if there is an issue so trouble shooting is slightly easier for the end user ☺️
@labibleatarilesitedesatari6724
@labibleatarilesitedesatari6724 3 жыл бұрын
You are "ma petite madelaine de Proust" As usual it's a pleasure to see you Sorin. See you soon! ;)
@ZadaTec
@ZadaTec 3 жыл бұрын
As Always!! The best man on KZbin:-) Question: Is there any way to flash recovery like this method with Lenovo/Dell ???
@KarenSmith-ef9kk
@KarenSmith-ef9kk 3 жыл бұрын
Go look on sites if not you will have to make a recover disk from scratch with bootable dos formated disk, bios file, bios writting program and a modified .ini file to tell the board what to execute and write..you may just see a black screen while rewritting the bios, till after the computer reboots....ence the it's name is blind writting. There's plenty of info on how to make the .ini file on the net if you look around, that was how we recovered a bios back in the day...this is old school stuff from the 90's. Sorin's probably been doing it that way for years too.
@108Marlin
@108Marlin 3 жыл бұрын
Thanks for the video .great tip .learnt loads just by watching your videos. Thanks Sorin
@sleepwalker6825
@sleepwalker6825 3 жыл бұрын
Had one like this the other day Sorin ... When switched on No HP BIOS screen , Weirdly when I click ESC I would see "Pause StartUp" nothing Else .... Reflashed BIOS using Windows Key +B and BIOS Reflashed Fine . Got into Windows blah blah blah no problem ... Turned it off 20 minutes later Turned it back on Exact Same Issue .... Opened Her Up took out the Battery ( not BIOS ) Main Battery and Voila has Worked Fine Ever Since .... Also when the Fan is spinning out of control usually Does mean the BIOS is not Controlling the Fan Header too ... Also that was Windows Vista Not 7 Sir ..........Thanks for Vids Sorin Noel
@jbvtechnologies
@jbvtechnologies 3 жыл бұрын
so good, good example man, when you get a higher fan spin , probably the bios fault
@brunosulikowski
@brunosulikowski 3 жыл бұрын
You are AMAZING. I wish I could ask questions about issues I have with my dead laptops.
@zomaardan
@zomaardan 3 жыл бұрын
Everybody in repair only take and dont give. You never get help. They dont give a shit.
@nakipelivan4007
@nakipelivan4007 3 жыл бұрын
Nice sorin its the professional man for this job thank you.
@hermoss1
@hermoss1 3 жыл бұрын
Hi Sorin, Why didn't you think it was a graphic issue ?
@lets_just_say_im_innocent
@lets_just_say_im_innocent 3 жыл бұрын
maybe it was because when the laptop comes on, the hard drive activity indicator starts lighting and blinking but in this case it must have not been that way and that would mean the laptop wasn't going past POST which usually means a bios issue. It's just a guess so dont take my word for it
@DetermineLyngdoh
@DetermineLyngdoh 3 жыл бұрын
If it's a graphic issue, the backlight will glow, usb led will glow because there will be 5v
@electronicsrepairschool
@electronicsrepairschool 3 жыл бұрын
Because of the fan spinning at full speed, that's a sign of corrupt bios
@lets_just_say_im_innocent
@lets_just_say_im_innocent 3 жыл бұрын
@@electronicsrepairschool I have encountered where the fan does not spin but the CPU and GPU (laptop) keeps getting hotter and hotter... dont know if it's a bios issue or something else
@enzorenade
@enzorenade 3 жыл бұрын
@@electronicsrepairschool Thank you Master🙏
@OverlandOne
@OverlandOne 3 жыл бұрын
I learn so much from watching your videos. Thank you.
@ohmware2020
@ohmware2020 3 жыл бұрын
nice job, still waiting for videos doing bios programming using the harware method 😁
@tablenovo10
@tablenovo10 3 жыл бұрын
Hi, I'm back had a little problem with my tablet or KZbin, I'm thinking KZbin, it delete my subscription, all mixed for now, this is a great channel, I'm all smiles again 😊😊 👍🇦🇺
@olivermate9353
@olivermate9353 3 жыл бұрын
Cool Will test out soon on a HP .
@tovilipolycarp3416
@tovilipolycarp3416 Ай бұрын
Sir are you buying this bio on line? This is amazing..Thanks👍 for the tutorial..🙏
@lavelani2674
@lavelani2674 3 жыл бұрын
hi dear friend, many thanks for your great videos, i am following your videos since you have started. I do repair electronics gadgets such as laptops.tablets,game consoles, Mac-books etc. your videos have inspired me geat deal . your understanding on any electronic circuit board is great, please give me advice how to upgrade my knowledge to your level.
@KarenSmith-ef9kk
@KarenSmith-ef9kk 3 жыл бұрын
Nice job, reflashing bios without showing off, like those, that think it makes them look cool removing the chip from the board for reprogramming.
@AnonymousRepair
@AnonymousRepair 3 жыл бұрын
😂😂😂😂😂😁😁😁😁@Sorin I am not a hater nor do criticize your work but do like stuff to be repaired the right way, If you short both mosfets it would still not charge because the BQ IC sense between the two mosfets as you can see on your diagram that you have showed. The BQ IC is quite a smart device, It will shutdown the two mosfets just to sense if one of the mosfets is shorted by using the sense line between the two mosfets, I have tried it before. thank you for your videos 👍👍👍👍👍
@jbvtechnologies
@jbvtechnologies 3 жыл бұрын
So true man 🙌
@mjarefi
@mjarefi 3 жыл бұрын
Excellent, I had to open the entire Lenovo laptop yesterday because of the BIOS programming
@MKUltraTutorials
@MKUltraTutorials 3 жыл бұрын
Friend please do a video on your thoughts on Right To Repair.
@OnStageLighting
@OnStageLighting 3 жыл бұрын
Looked at a laptop recently that appeared to come on, but nothing on screen. fans, LEDs, everything but no backlight/picture. All other rails OK but couldn't find a voltage at screen connector so assumed something up with screen circuit. Owner didn't want to take it further so the job stopped there. I wonder what would be the diagnostic difference between BIOS issue like this vs. such a screen issue?
@Mr.Smith_Mr.Wesson_andMe
@Mr.Smith_Mr.Wesson_andMe 3 жыл бұрын
I cannot remember exactly, but here in this case, it was not a power issue, so the Super I/O chip switched on all other voltages. In case of voltage error of the display or graphics unit, i guess there would be immediate shut down of other voltages, isn't it? Maybe someone with better background can say more wise words than me, the very young padawan 😉
@AnonymousRepair
@AnonymousRepair 3 жыл бұрын
Use a usb keyboard to see if caps lock or num lock is working
@zx8401ztv
@zx8401ztv 3 жыл бұрын
Nicely recovered sorin :-D Do you know where the code is for the B key? protected area of flash or inside the super i/o ?
@abdullahxo1689
@abdullahxo1689 3 жыл бұрын
Hi Sorin! Your channel is full of awesome videos! Thanks! Why you did not check with external monitor to see if it works?
@fareselamine8115
@fareselamine8115 3 жыл бұрын
I was thinking the same thing as well! Maybe the laptop does not have an HDMI output? I was also thinking why not test the voltage around the monitor's cable, or even unplug/replug it and if all else fails hook up an external lcd panel to test with. I don't know though, maybe that requires compatible driver with the external monitor?
@eldoradocryptoz
@eldoradocryptoz 3 жыл бұрын
Your level of experience Sir Sorin is outstanding. Pls tell me ur biography when you have the time. I want to be able to tell my kids about Master Sorin from whom I've learned so much. Through you i've become electronic Master myself. Thanks alot for everything.
@sergelavallee913
@sergelavallee913 3 жыл бұрын
Good to see you again Sorin! And please come more often. I'll tell you why. You see when i open my shop and repair, instead of repairing while listening music, it inspire me to repair and listen to your videos while i'm working. So if you don't put more videos, when i repair i have to listen old videos of yours. It helps me. It put me in the mood you know? So please make more videos. Thank's Take care Sorin. I wanted to flash my bios of my compaq presario but the firmware is not on the net anymore. Not available anymore. Can i save it or not? Thank's
@B9NE
@B9NE 3 жыл бұрын
I'm sure if you look up the specific bios you have you might be able to find an update official or unofficial. If you can go to the bios menu you can see which one it is.
@sergelavallee913
@sergelavallee913 3 жыл бұрын
@@B9NE I know what kind of bios but on the net the companie discontinuated the firmware so i have a PC with only the fan running cause the bios is dead. I have only one solution is to find the same motherboard defect on something else and take the bios from it. Beleive me i've tried to find that firmware but it does not exist anymore. I can't go the the bios menu, black screen, bios is dead. Nothing start, the PC won't start cause it's the bios that orders it to start and the bios is dead so only the fan turning. Thank's anyway.
@cecilmiller2387
@cecilmiller2387 Жыл бұрын
Thank you Sorin this helped with a solution to fix my Dell Inspiron 1440.
@joshclark6449
@joshclark6449 2 жыл бұрын
Would love say yeah it works but sadly did not work for me but thank you this helped me get an understanding of it all
@andyturner1727
@andyturner1727 3 жыл бұрын
Hi Sorin you are such a experienced technology and wise honest person . We need more people like you in the UK . Thank you . ; - )
@prabhashgupta9582
@prabhashgupta9582 3 жыл бұрын
Very nice video I am always confused about bios flashing but there is ALWAYS something to learn.✌️
@shaunmorrissey7313
@shaunmorrissey7313 3 жыл бұрын
I learned something today, that makes it a good day.
@sdf_mx99
@sdf_mx99 3 жыл бұрын
happy mothers day good day evryone from mexico
@rickyhadley2797
@rickyhadley2797 2 жыл бұрын
well done you explain a lot my question is do you reinstall the old ram and if you do do you clean it with an eraser?
@phinehasantwi9615
@phinehasantwi9615 3 жыл бұрын
Thanks a lot for your educative videos, am able to repair well and fast now...
@REDDOGLewiston61
@REDDOGLewiston61 3 жыл бұрын
That's funny I have to hp's on my bench right now that are doing the same thing. I will try that bios utility.
@JunPVlog
@JunPVlog Жыл бұрын
That's nice tutorial sir thank you for sharing this
@therealspixycat
@therealspixycat 3 жыл бұрын
The bq chip reads the current through the shunt resistor and kills the second mosfet: I think the sole purpose is to limit the current to a possible bad or shorted battery to prevent a possible fire?
@denizgoksel
@denizgoksel 3 жыл бұрын
Nice fixing thank you for sharing👍
@AsanteNgwira-sv5mv
@AsanteNgwira-sv5mv Жыл бұрын
Was your laptop also powering down and on before u rewrote the bios
@aimelapierre5705
@aimelapierre5705 3 жыл бұрын
This one wasn't to hard of a repair nice going sir
@justinkv02
@justinkv02 3 жыл бұрын
thanks friend,good info
@Bill-lt5qf
@Bill-lt5qf 3 жыл бұрын
Woah, i had no idea HP had this feature. Good to know.
@robertisaacs5122
@robertisaacs5122 3 жыл бұрын
Enjoyed the video. Thanks for your time.
@MAYAPOGS
@MAYAPOGS 3 жыл бұрын
your the legend sorin..
@antondewaal8509
@antondewaal8509 3 жыл бұрын
Thank you for sharing your knowledge. Lots of respect to you for taking the time to make these videos. If i may prompt you two questions I would appreciate it. 1. How can I get into Bios recovery as you did with the "B" key on the HP laptop to update the Bios. This Asus laptop keeps booting up in a Bios loop. 2. If suspected that the circuit is down to ground, how can I eliminate which component is the bad one. Nothing is getting hot except the processor, but the motherboard is removed from the laptop and all plugins removed.
@claytonmorgan8625
@claytonmorgan8625 3 жыл бұрын
Great recovery Sorin, keep up the good work!
@superherodude6665
@superherodude6665 3 жыл бұрын
This is very helpful,i have the same problem now and im having a problem making my usb bootable, like when i download the bios it doesnt show me the option to create a bootable usb just the location where you will place the installation and thats it that is why i cant continue anymore, plus im not sure if windows+b will work for me or just b only, my laptop model is 14s-dk0136AU
@elyasgarcia2509
@elyasgarcia2509 Жыл бұрын
sir how do you remove the customized splash screen and restore the default HP Logo during POST much appreciated for the help
@ghislainriou9560
@ghislainriou9560 3 жыл бұрын
Good day Sorin what is the model of the dc power supply you using for testing thank you and good work as usual . Have a bless week to your team as well ;) looking forward to your reply.
@onutuioan2112
@onutuioan2112 3 жыл бұрын
Nice videos mate, I really love them. You are the perfect teacher that I never met to the university. Anyway, what should you do if you have the same problem on the asus laptop, because on the asus laptop you cannot update the bios the same as on hp laptops. Should I reprogram the bios manually, I mean to unsolder the bios chip and try to reprogram with the help of some flashing tools?
@alaster33
@alaster33 3 жыл бұрын
Hello Sorin , great to see your going strong , I just wondered as I have an unrelated fault on an iPad mini 3 , I soldered a new charging port and screen connector, it charges but only on one of my 5 working cables which has got me scratching my head , I changed Tristan chip but put old one back because not even one cable worked ....PS I have tried new battery too, I wondering if you had any insights please ?!?
@dspcomputers21
@dspcomputers21 Жыл бұрын
what exactly were you coping? i thought the number should be on the board sir
@pityuiam1384
@pityuiam1384 3 жыл бұрын
I usually end up desolering the bios ic, and reflash on external writer.
@Mr.Smith_Mr.Wesson_andMe
@Mr.Smith_Mr.Wesson_andMe 3 жыл бұрын
And? You've been succesful? I hope it was.
@pityuiam1384
@pityuiam1384 3 жыл бұрын
@@Mr.Smith_Mr.Wesson_andMe yes... the only difficulity to localate img with me cleared..
@Mr.Smith_Mr.Wesson_andMe
@Mr.Smith_Mr.Wesson_andMe 3 жыл бұрын
@@pityuiam1384 you mean, to find the image of the bios file was difficult?
@KeiLin11
@KeiLin11 3 жыл бұрын
That was amazing...
@pityuiam1384
@pityuiam1384 3 жыл бұрын
@@Mr.Smith_Mr.Wesson_andMe In some cases... the worst like toshiba, when you get .exe file which is not extractable.
@DirtyReaper
@DirtyReaper Жыл бұрын
I make a HP tools Bios update usb drive but it still fails or doesn't see it?
@kirkoclive
@kirkoclive 6 ай бұрын
Same here. theres just something wrong with HP
@khalkhal2372
@khalkhal2372 2 жыл бұрын
Computer comes on but no picture. Why haven't you suspected a display issue at first?
@idmann17
@idmann17 2 жыл бұрын
It does not sound like the operating system is loading...
@StAlKeRrEpAcK
@StAlKeRrEpAcK 3 жыл бұрын
The same for hp pavilion dv5 but mine only on hp logo no picture but when on win 7 logon there is
@j0eb0t0
@j0eb0t0 5 ай бұрын
HP 348 g3, turns on, but no display. caps lock no light + not blinking. happened after automatic HP bios update. suspect bios corrupted. tried using usb recovery as video, with win+b, win+v, v, b, but it does not kick into bios recovery at all. any idea? feels like board problem, but it happens right after HP bios update.
@wisher21uk
@wisher21uk 3 жыл бұрын
Sorin you are the man You save people hundreds of pounds you’re a breath of fresh air
@BrandonCasillas-e2m
@BrandonCasillas-e2m 3 жыл бұрын
Does this works with all laptop product or just for Hp laptops
@abdulagoro8761
@abdulagoro8761 3 жыл бұрын
Thanks for sharing your knowledge I’m a fan of your video shows I have aToshiba satellite laptop the power comes on with the logo and it’s booting up what’s the best step to clear this fault ?
@laptopDoctorKZN
@laptopDoctorKZN 2 жыл бұрын
Hi Please can you do a video about how to check if bios corrupt or when to reflash bios or ec
@gikan1000
@gikan1000 3 жыл бұрын
Mate, do more videos. Im watching you always before sleep, you're cool :)))
@rodwellmatsaure7217
@rodwellmatsaure7217 2 жыл бұрын
Thank you teacher 👏
@sageauk
@sageauk Жыл бұрын
will this work with hp desktops (flashing the bios)
@sandy1234853
@sandy1234853 3 жыл бұрын
Hi Sorin im currently having turn on but no picture issues also iv had it turn on and run before but it seems random but now it wont boot up at all just lights on fan will spin for a few seconds then they will stop and the lights stay on also the gpu gets warm unsure why the cpu power mosfets dont allow any power through they have 20v on one side and 0 on the other but its no short im starting to think its SIO or athe bios because everything els is ok and as i said it has booted up before
@Arvidje
@Arvidje 3 жыл бұрын
This maybe sounds strange, but i have had a laptop with the same probs, no display, fan spinning full, but it was the charger! So always try an another charger first.
@santoshmundepi2977
@santoshmundepi2977 3 жыл бұрын
Is it possible in hp any generation laptop.which required reflash the bios .
@DugongGila
@DugongGila 3 жыл бұрын
Just a quick question. How could the bios go bad? I remembered installing the latest Ubuntu actually corrupted my laptop bios, but for this case it was still on Windows 7 and probably used it as a daily driver.
@SinsBird
@SinsBird 3 жыл бұрын
It can be many things, bad circuit design, especially power section, power supply going bad, failed update, even virus.
@DugongGila
@DugongGila 3 жыл бұрын
​@@SinsBird Ah ok. Now I'm wondering if my old HP laptop that i sent for recycling years back was actually the bios issue, had similar case that couldn't power on and etc. Ah well, this is good to know.
@NiHiKata
@NiHiKata Жыл бұрын
Hi! I tried using the bios recovery from HP using the UEFi diagnostic tool but it says "unable to open the signature file". What should I do?
@irfansensoy5901
@irfansensoy5901 3 жыл бұрын
Hello there. I have an Asus X55VD model laptop. I wanted to install SSD and I wanted to install windows with usb. I inserted the usb and entered the bios screen, the usb did not appear in the boot options. I restarted it by enabling an option that was disabled from the usb configuration settings in the advanced section and the pc crashed. The fan is running constantly, the keyboard and the screen show no light or any sign of life. At first, the hdd light is on and off for 1 or 2 seconds, only the power light stays on. I can't get into the bios settings again. Normally I can enter the bios with F2, but after this event, I cannot enter the bios in any way and I cannot restore the settings. Please help me.
@richardsmeeton8910
@richardsmeeton8910 3 жыл бұрын
Irfan that sounds like you enabled fast boot. On some ASUS and ACER models fast boot executes the boot strap before initialising the keyboard, so you don’t have chance to interrupt it with the F2 setup. You may need to remove all the boot device with Windows on to be able to get back into the BIOS.
@johnrodgers1735
@johnrodgers1735 2 жыл бұрын
hi is it the same for lenovo laptops with same issue? many thanks
@obedphiilamai3798
@obedphiilamai3798 Жыл бұрын
What is 52a3?
@tomaszpluta5839
@tomaszpluta5839 3 жыл бұрын
Just out of curiosity, how can the BIOS get corrupted? What can one do for it to get corrupted? Are there viruses that can temper with the BIOS? Also, can this be done on any laptop? I've seen plenty of your videos, Sorin, and you usually go straight for the graphics chip so is it an HP thing?
@AnonymousRepair
@AnonymousRepair 3 жыл бұрын
I think some forced shutdown the laptop while bios was updating or the battery was to low, this doesn't always work and you would need to remove the bios and program it by a programmer
@npanda-em1cz
@npanda-em1cz 2 жыл бұрын
Any idea for bios update without laptop screen corrupt
@Martin-ot7xj
@Martin-ot7xj 3 жыл бұрын
Hi there , it was perfect tutorial video . thnx
@therealspixycat
@therealspixycat 3 жыл бұрын
What to do when there is a short from 19 volt power rail to ground and nothing gets warm? Run powers supply at 2 amps and a few volts. I can't find anything that smells or is warm. Any suggestion?
@Mr.Smith_Mr.Wesson_andMe
@Mr.Smith_Mr.Wesson_andMe 3 жыл бұрын
Go higher with voltage/amperage
@therealspixycat
@therealspixycat 3 жыл бұрын
@@Mr.Smith_Mr.Wesson_andMe what is a safe maximum amps that will not destroy the board?
@jbvtechnologies
@jbvtechnologies 3 жыл бұрын
Go higher like 3A or 4A
@Mr.Smith_Mr.Wesson_andMe
@Mr.Smith_Mr.Wesson_andMe 3 жыл бұрын
@@therealspixycat the board is already "destroyed". It only depends on where you inject the voltage and you know what you are doing!
@SinsBird
@SinsBird 3 жыл бұрын
@@therealspixycat What you're saying is impossible, something has to get warm or hot, it's multiple watts!!!
@tomjones4145
@tomjones4145 2 жыл бұрын
Fantastic video / thank you for sharing
@betohfinger879
@betohfinger879 3 жыл бұрын
how u do that in a lenovo laptop...for there is no lenovo system bios update utility
@massyle5198
@massyle5198 3 жыл бұрын
How did you know this was a BIOS issue, and not a screen connector issue or a graphic chip one for example ?
@jbvtechnologies
@jbvtechnologies 3 жыл бұрын
there is no dedicated graphics chip on most of this machine, if there is no sticker saying AMD or NVIDIA graphics it means there is no graphics card...Again count the number of flashes and search online
@massyle5198
@massyle5198 3 жыл бұрын
@@jbvtechnologies okayyy, but i mean that could be another issue (like the screen connector not working, or the screen itself) so i wanna know if there is a sign that tells us it is a BIOS issue
@incognitopassat7102
@incognitopassat7102 3 жыл бұрын
the fan was running at the high speed. thats the key
@massyle5198
@massyle5198 3 жыл бұрын
@@incognitopassat7102 thanks mate 🙏
@jbvtechnologies
@jbvtechnologies 3 жыл бұрын
@@incognitopassat7102 yes 🙌
@direx1257
@direx1257 3 жыл бұрын
I want to thank you a lot! I was just on repair of gaming Laptop Lenovo y700 and i changed first mosfet and he start working but no battery charging. After u sayd that second mosfet Can be a reson... I changed it and its work fine! Thank you a lot! 90% of what i Can i've learned frome you.
@nageshtagadur
@nageshtagadur Жыл бұрын
my compac presario is doing same ,.. please help,..
@md.arifuzzaman648
@md.arifuzzaman648 2 жыл бұрын
my laptop's fan does not move whenever i plugged in the charger. but indication light of the power button turned on along with charger indication. will this work on my laptop?
@Vincent57221
@Vincent57221 2 жыл бұрын
What about a laptop that opens and the screen just lights on but it doesn't display anything? How can I fix this? The laptop had fallen and the first time the hard disk was replaced 3 times after falling and it only works for a short time and fail. What might be the problem in this case?
@BiwisMAKOU
@BiwisMAKOU 3 жыл бұрын
does it work on HP 15-bs015nia? I tried but nothing appears on the screen. Yet technicians said it's a BIOS reprogramming problem
@ripe_apple
@ripe_apple 3 жыл бұрын
Excellent Video, 73's
@chanchanwayuyab3244
@chanchanwayuyab3244 2 жыл бұрын
same issue as mine but when i updated the bios its still stuck on black screen but the backlight is on hp hp logo is not showing
@kepongbudak7650
@kepongbudak7650 2 жыл бұрын
This only work in hp laptop?other brand u try it ????
@vk5ukkklaus386
@vk5ukkklaus386 3 жыл бұрын
Hi, here I was blaming KZbin, sorry 😔, it was me, I loged in on the wrong channel, 👍🇦🇺
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