Airbot Typhoon32 4in1 ESC REPAIR

[@KyleLi]

This video is literally going to save me so much money... lost a t-motor 55a pro ii esc and repairing it soon using this. Just a $40ish investment into a heat gun and new components and I can repair all the escs I want into the future.

[@DamienLanders]

GREAT VIDEO MY FRIEND 👍👍👍 I LEARNED A LOT Joshua Bardwell was right to send people to your Channel you guys are really knowledgeable and I can appreciate the knowledge you both share

[@thecraftking113]

Just did the same from bardwells channel very impressive

[@mangodron842]

same!!

[@Germ0o]

Joshua Bardwell sent me here. Really good information thanks!

[@tobic2139]

Thank you for awesome repair Videos :) For testing the ESC after repair you can use car light bulbs (3pcs connected in Star) instead of a motor. If all three phases are working the brightness of the bulbs should be equal to each other. I use 3x 20W BA15s Bulbs.

[@cypher0123]

Thats brilliant.... im always using a motor and hope nothing explodes. Will the esc also "drive" them or just the boot beeps

[@gordonthetford9418]

You just blew my mind, I've had a few issues in the past with some of the SMD components on a few different boards sliding around if I get the board too hot and bump them accidentally, I always thought that unless you had one of the precision robotic arms designed for stuff like this you could just forget fixing it yourself, I see now that it really just takes good technique and steady hands, thanks for the awesome video!

[@WarChest]

And here I thought I was the only one who repaired ESCs that were damaged in flight. Really *fantastic* job on this repair!!

[@CarbonGlassMan]

Very very helpful. Thanks. This is an important skill in this hobby because these boards stop working all the time.

[@markmanning239]

Because of you I replaced a mosfit on one of my ESC!!! I Thank You . There is no way I could have done this with out you.

[@MDimosN]

I've seen in the past this video and never thought that I have a chance to do that! But now its time! Thank you very much!

[@ОлегГазов-г8с]

OMG! I live your english!!!!!! It is easy to understand what you saying!

[@nategoodwin3329]

As a drone racer, this is a crazy savings tool. Thank you!

[@AL-jc5xs]

I really learned something new today

[@SevereSaint]

Your video has inspired me to purchase a heat gun and attempt to convert some of my 3-in-1 ESCs back to 4-in-1s. I've done some FET replacements where it looks like I fixed the problem, and the motor spins again. However if I give it more throttle than idle it runs very rough and sometimes resets the ESC. What could be causing this? Too much heat in the repair job? Not soldering properly? Other components down the line that aren't working?

[@dubmfg]

wow this is fantastic, im gonna save so many ESC's. Exactly what I needed, a louis rossman of RC

[@RGMGFitness]

Nicely done! You've got a very steady hand and nicely explained as well. 👍👍👍 Seeing this done really helps understand how these ESC's work....👍👍👍👍👍👍

[@paulhope3401]

Fantastic guide... My Iflight H7 beast (BGA) is giving no start up tones, I'll try to use your guide to troubleshoot but perhaps BGA size chipset is not possible to repair?

[@TheFpc20]

Awesome video for teaching, i have a new 4 in 1 esc, never used where one of the 4 motors pin out looks like have problem because motors even make sound when i connect lipo, all others 3 do it but one not, i did make sure that is not a motor problem because i change th motor by one that sound, what can be the issue with it?

[@Creator1406]

Your videos are hypnotizing ;o Your soldering skills is better than a machine!

[@rchaze]

sweet! I am going to try this now. I get all four motors super hot from all the motor screws and motors all the way across frame within 30 seconds of hover. only happened after a crash. after ruling out what I know this is my next check thanks!

[@sofyanhardiyono9152]

correct method to check for the Short fet , since the Fet usually use Asymmetric configuration N channel Mosfet ...what about if the fet has break up inside? nice video..

[@JorgeJimenez2020]

Very nice video, I may try this in the future with my broken 4in1 ESCs, I still have one or two around there that are dead.

[@Kettenhund75]

Livyu, why is it impossible to repair if they catch fire? I have a FETtec 45a 4-in-1 that I mistakenly flashed with the KISS ESC flasher and it did catch fire. I was hoping I would be able to repair it. Also, I have a Holybro Tekko32 that does not have continuity between either the positive or negative feed and any leg of the 4 esc's. It will connect to BLHeliSuite_32, but I get a message that there is no configuration loaded on any ESC. I cannot flash any of the ESC's. Can you point me in the right direction to fix this ESC? I have a hot air rework station as well as all the other tools you used in this video. Thanks!

[@freshconnekt]

Also what is a good re-work station. Would love to get a Hakka setup but I am not paying 1,000 bucks for something I will not use too much. I love soldering and I am good at it and would like to try some re-work

[@SHURI3cinema]

Wait so is there a webstie where you can buy Mosfets? Or do you have go strip them from scrap parts?

[@Maorifpv]

I used a dremel to make the screw hole bigger to fit a grommet, after that motor 1 runs intermittent …. Any idea what’s going on ? All mosfets looks fine with multimeter

[@Man-kd4ck]

Hi. Thanx for your videos. I drop my Quad in to the snow and it's don't work now. The FC is work, VTX is work. ESC - don't work. I check all mossfet as you show - all right. But my ESC is make sound like clock "tik tik tik" and motors don't rotate when i power up. Elso, when i connect quad to PC Bheli_32 write "found no valid esc configuration". Can you tell that could it be?

[@BaliDroneServices]

Hi Livyu..., I am wondering on 10:40 did you only use cottom bud to clean up excess flux or did you use sort of normal alcohop 70% or anything else?

[@LivyuFPV]

Cutton bud and apa alchool rubbing alvhool is like 99% ish

[@simonebanana]

You make it seem easy, 😂 big up to you friend.

[@j.finesseflights1403]

Thank you my brother! This video jus saved me $50!

[@christopherj3367]

where is best place to get replacement part's e.g. mosfet for the ESC? As I have a HAKRC 10A 4in1 ESC with one of the mosfet's blown but cant find a replacement small enough.

[@reuvenabit]

Thank you dear friend, so i got two mosfet transistors burn without know that. After your tutorial i got another 2 from my older typhoon and resolder them. It work's great thank you!! I wanted to ask you too about dont recognized 2 from 4 of the esc's in blheli32.

[@noobieflight2614]

Awesome man! I wonder if same thing applies to tinywhoop esc 🤔

[@ryanhuckins6669]

Wow absolutely amazing.. do u do work for other people? I got some old school vintage esc id like to have looked at.. if so please let me know ill send them to you an we can work out a price your happy with.. thank you

[@adayinthelife5772]

Excellent operation Dr. Livyu.

[@jonyvilla23]

hello friend, have you repaired escs 20x20 ?? If so, will you have a video? if not, can you make one? Cheers

[@srul76]

Hi Livu. I love your work. Watched all videos. Please keep your great work Can you please share where I can by the mosfets for this esc? I'm looking for zm019n03

[@dankusmemus2350]

I can't find these either, they are for a Furhling32, airbot I believe. Very annoying

[@rcpete7055]

Very good fix!#😊 there is no wiring diagram for the wire harness on this esc??

[@benoit7699]

hi, i just discovered your videos and they are awesome! I have a Hobbywing 4in1 ESC which is malfunctioning, a phase is missing on motor 3. I have done continuity tests but I have not found it. Mosfets are ok, how to check the processor? thank you !!

[@andrewbt87]

I've repaired the same ESC, the first batch had problems, mine had two mosftes that got broken in pair and didn't look that good. After I changed the mosfets the ESC did beep correctly but didn't spin right, I had to change the driver and gate resistors and then it worked perfectly.

[@LivyuFPV]

yeah depending on the circumstances the drivers and other parts can become broken.

[@prathmeshdk]

How do I find if drivers or resistors are broken coz my broken 4in1 esc doesn't show any continuity/broken mosfet. But BLheli shows an error for one of the ESC. Please help.

[@markmanning239]

Any way you can put out a video on ribbon repair, I broke off my Kalita f7 they actually give you a spare when you buy it new

[@masumoto007]

Omg....I just learnt soo much! Thank you soo much for your time!

[@dee1251]

I blew mine but it looks like the filter capacitor blew , where can i purchase those?

[@aerialpunkin1961]

Great Video series, thank you very much. I'm trying to fix an ESC right now and just starting out in SMD repair. I practised on an old ESC which has the same mosfets as the one I'm tying to repair, managed to get a misfit off of there but it seemed a LOT harder than in your video. I had my heat gun at 400 degrees and used plenty of flux, I'm wondering if the flux I'm using isn't the best for the job, does it make a big difference?

[@Geoffh777]

As long as you don't use acid flux!

[@FlycamSky]

Where to buy replacement mosfet for its correct type?

[@sunrizer]

Thanks for sharing man, I always learn a lot from your videos👍

[@ironlionfpv]

I need to replace a fet but can't find the original one, where do i need to look for to find a similar one that will work with my esc. I got a datasheet of the original one

[@doc_ineeda_win5834]

I got like 4 betafpv f4 1s boards that escs has disappeared in flasher .. be like 2,3 missing 1 and 4.. one board I just hovered... new.. sat down flashed and they were gone.. any suggestions?

[@kordets]

Do you have any tips for diagnosing MOSFETs that have failed open, or the gate driver circuits without removing and testing each one?

[@yollera]

The mamba 506 esc use QN3109 mosfets, but I dont find the same, It says "QN3109 809 13K", can I use another replacement?

[@_Brando_69]

I love your videos. You have saved me a lot of money already. Thank you!

[@jessefpv9217]

I've got the same esc. With the same problem. Would you be interested in fixing it for me. I could also include a bag of other prolly fixable fcs and escs and we'll I'm just interested in getting this esc fixed it's brand new. 2 flights on it and something just popped and it fell out of sky. And yes I check polarity on everything when building. All builds are clean has to be a manufacturer defect

[@martyn5416]

Is it possible to damage ESC while soldering? I have one motor that doesn't spin on a new build, the motor does beep however. After trying to flash new firmware (it failed a few times on that esc) it now appears to work normally.

[@txflyerken173]

Great video, I have all the tools to do this as well but where is a good place to buy the mosfit chips? are they all pretty standard on the ESC boards? I was thinking Mouser Electronics? Thank you!

[@LivyuFPV]

not standard. They are specific products. On some escs there are same fets used on some different. Digikey is a good place

[@ConjoFPV]

Awsome video even 4 years later still relevant! I have a question tho. I heard you make a remark on it in another esc repair vid but id thought let me ask anyways. Is it possible to fix a fet where the fet pads fused because of excessive heat? I would love to repair my fettec esc but the pads are fused. And a new fet simply didnt fix it

[@LivyuFPV]

No unfortunately because if the heat was so much to melt copper and fuse them together this means the PCB is deeply affected and I would not recommend a repair even if the pad is still there delaminated. better to throw it away

[@budgetdrone990]

Good video bro. U have video for aio board esc broken? Mean happymodel fc aio. Example.

[@smoovegee3711]

Love the video. I presume you used Isopropyl alcohol (99%) for cleaning the PCB and not just any alcohol. But wondering how one would go about testing and replacing metal mosfet's like the IRF7480MTRPbF, found these days on ESC's like Holybro Tekko32 F3 65A metal for example. No 8 pins there, only 4 Drain's as far as I can see without removing them first.

[@LivyuFPV]

Same principle :) gate drain source... Different footprint though thats it...

[@smoovegee3711]

I agree, according to the footprint the sources are not located around the edges on the outside of the mosfet but in the middle area as wel as the gate so I can't reach that with the multimeter probe without removing it first. No obvious visible damage to see sadly enough. Looks like I'll have to remove them to test individually.

[@houseofpainINKS]

Remember to thank Joshua Bardwell putting your video on his , now i can fix esc's, now what about flught controllers?

[@ring0s]

Are you saying you changed the mosfet and ESC is working correctly? I have already repaired many ESCs and the mosfet replacement itself was not enough. Have you measured the voltage at the motor outputs before connecting it? If there is a high voltage there, you can damage the new mosfets or burn the motor. It is necessary to check the resistors between the mosfet and driver, they can also burn. If only the mosfet has been damaged in your ESC, then you are extremely lucky, because usually resistors, diodes, drivers and microcontrollers also burn.

[@LivyuFPV]

Depends if the high or low sides brake or alltoghether ;) usually the new kind of drivers have protection in case the mosfet shorts. And some drivers have higher supplys voltage so I don't see any reason for them to brake. Is not like on a ac power supply... where hv gets to the driver...

[@ring0s]

It would be good if it was as you write. For 10 repaired ESCs, 6 drivers are damaged and resistors on all damaged mosfets. One of the ten had a defective processor. It is often the case that the driver is damaged due to a broken processor.

[@LivyuFPV]

@@ring0s well yeah i repaired well over 20 escs... and not even one had broken drivers because of broken fets except those that got crispy and they were dead because of the heat... but there are tons of not so good designs out there. So who knows. I repaired from Immersion, racerstar, dys, airbot,kiss, and more brands that I don't know and the ones that had dead drivers it was because of brownouts... but the mosfets were fine still so depends on the design mostly. The cheaper ones tend to have issues with the drivers with no apparent reason...

[@weberentertainment2962]

Where can I buy spare fets, can't find the ones I need for my furling32 35a. Or what to search for when looking for the right fets.

[@sethboring8340]

Great video! Inspired me to get a hot air station. I tried to follow the links to purchase flux and PCB holder but looks like your links have expired. Thank you!

[@edslatt3845]

Can you give some links to the products you use? Vice, tweezers, flux.. Great video! Thanks for putting this out.

[@lepequie]

I have a situation where some times an esc will spin the motor but i can hear it vibrates at certain rpms ans sometimes the motor even whistles.... the fets don't look physically damaged but is it possible that the failure be due to the same issue you describe in your video??? Can the fets be broken even if they spin the motor??

[@dooronron69]

Can mosfets be purchased somewhere ?

[@die_hertz]

Damn, I love some good rework. Well done, mate

[@sososisi8790]

Hello how much airrr and temeprature ???

[@omhobby9481]

I got my betafpv 16A esc broken on 1 motor..but three other esc normal I try continuity but nothing short... what else must be checked?

[@aowbrasilfpv4797]

Where do I get the fc diagrams?

[@dafadashamsta]

Thanks for this video. I need to start saving my bad esc and try this.

[@MrSmithFPV]

Yeah, same here!

[@Catiadr]

I'm looking forward to trying this

[@tinysfpv7105]

thanks for sharing your knowledge I love watching your videos

[@synthbe]

Can somebody tell me what the component is at 6:35 just below GND label with 0m50 on it ? I see this on all escs.

[@LivyuFPV]

Shunt resistor (for measuring current)

[@tyronerai9865]

Where u get these mosfet to buy an how what number u look for

[@jptiff4621]

Where can I send my ESA to get fixed

[@kristaandsimo916]

Thank you so much for the great video as always I'm learning something from you .so question i dont have extra esc for the mosfets but do you know where i could buy them from please ?

[@kalinkha]

Livyu, I have hobbywing g2 stack and after crash branches one of esc pad came off, and there no mosfet legs on the side which im gonna solder. Can u recommend something pls?

[@alexandrumusy]

well done Liviu , Again !

[@thespencerowen]

Thanks for sharing. What camera setup do you use? I can never get close ups of my workbench like that.

[@stanblblblbllav]

Hey. I burned two mosfets on the same phase. I replaced them and when turned on they burned down again. what to see?

[@xdroner1009]

Nice rework, keep going !

[@DirkaDirka07]

Can I get a link to those tweezers please?

[@Kettenhund75]

www.amazon.com/Precision-Anti-static-Non-magnetic-Multi-standard-Electronics/dp/B06XXXQHS8/ref=sr_1_1_sspa?dchild=1&keywords=pcb+repair+tweezers&qid=1620710192&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEySlJHWDZZVTRCMk8yJmVuY3J5cHRlZElkPUEwMDM2ODkxMzBSUTIwS1ZLVzJPNSZlbmNyeXB0ZWRBZElkPUEwNzA4NDg5MkNKRFBUSEtTN1FSVCZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

[@freshconnekt]

I just got a Holybro tekko32 metal. I am pissed because I payed 80 bucks for it. It is weird, motor 1 and 2 operate fine. When testing motor 3 in BF motor 3 will spin like it should but motor 4 also spins like they are bridged. In BLhelisuite32 it can access flash of esc 1 and 2. Error’s reading 3 and will not even recognize 4. I can reflash 1 and 2 just fine but 3 fails it says when flashed but still will work in testing but motor 4 will not communicate at all. Idk if it is my kakute f7 fc not. Since communication flows thru the fc and then to 4in1 thru a proprietary cable between fc and 4in1.

[@dexop]

Is it possible to flash mcu using SWC and SWD pads with official .hex file from github?

[@crissan5035]

why doesn't THE CLI do that for you on the BETAFLIGHT or clean flight its all programable the cli should give a error message for the motor output so you know where to start METERING.

[@mrtokyo1989]

Thanks ! you are the best! keep it up :D

[@CulverCt1]

thank you so much for the knowledge

[@FlyZoneFpv]

This is very well done. Thanks buddy. New sub here👍

[@mozzer1775]

What small vise are you using?

[@OnepackFpv]

Hi. When I test for continuity I only get a short beep when touching only some pads. Not a continuous beep? Is that a bad mosfet?

[@LivyuFPV]

that means that maybe on the other side of the power supply you could have a short. Your have 2 MOSFETs on 1 phase one switching from + and one from -. If the one on + has a short beep then check the one on the -. see what comes up.

[@illpro2]

Whats the difference in 04k, 09k and 02k? Also 731, 732, 721?

[@LivyuFPV]

On semiconductors and the part numbers mean different things like power rating and things like that

[@madebyandre_]

Is it possible to save my tekko32? I accidentally wired it wrong. The vbat wire from the esc was wired to the signal 1 of the FC. The FC’s processor is burned but on the ESC no physical damage was done. However, the motors dont give the tune anymore when plugged. I tried your method for testing bad mosfets and no beeps at all, meaning all my fets are still good. I suspect one component can be changed to make the whole esc work again

[@MachuPichuu]

thats' going to fry the processor on the ESC. FC and ESC will need to be replaced. i don't think that can be easily repaired or diagnosed

[@dkeinys]

Hi can you flash blheli_32 in new chip??? Is this possible??

[@KeenEyeFPV]

None of the links to your tools work anymore, would you mind re-posting or just telling us what equipment you use? Great video, very helpful thank you!

[@gymkhanadog]

I just realized I'm about to buy the same thing you're repairing; why did your ESC die? How many cells were you running? I'm about to buy the v2.3.

[@LivyuFPV]

I received it from you guys :) I am not using it.

[@PandaFPV]

What if the mosfets are good but not getting power. I plug mines in and the motors don’t make sounds or move.

[@LivyuFPV]

Maybe regulators... Check and see of the 5v and 3.3v are present on it

[@mlx83]

... and 2019 Nobel Price goes to .... seriously I will try this on my old broken esc :)

[@ZylonFPV]

Nice repair, difficult one to do! The fets you put on are different from the original fets - 721 04k vs 731 02k, so the performance might be affected. I guess you could order new fets of the right type from somewhere though

[@SwiftingSpeed]

Those are manufacture date and assembly line markings, there's no difference in performance. 721 and 731 means 2017 week 21 and 31 respectively. The 04k and 02k are internal sequence and assembly line numbers.

[@ZylonFPV]

Kevin Dahlberg ah, well that’s good to know, thanks!

[@bbab9051]

what about the plug on the esc ? can I repair it if the plug on the esc broken and get disconnected ?! can I attach the plug back to the esc? ! btw I mean please , thanks

[@LivyuFPV]

yes, you can reattach it if the pads are not broken.

[@FlyingPolak]

Awesome work. Subbed!

[@Tom-sp2xs]

Like always great job!

[@jessefpv9217]

I've got same esc with exactly the same problem.

[@marccretten]

I wish i had your brain. You are amazing at this.