Hardware Joy-con doesn't charge after disassemble

[Lerayne]

Hi everyone!

I had a problem with some buttons on my left joy-con affected by glue or some grease so I decided to disassemble and clean it. Now it doesn't charge, though the battery is OK (I checked it with multimeter - it shows about 4.1 volts). It works when attached to the console, showing only the smallest red line in charging battery symbol, but has no signs of life when detached.

Can it be that I fried some of the circuitry (like power controller) or maybe this is some known issue and it can be helped somehow? Thank you.

 

[izy]

Easiest solution check battery is connected properly.

Then use the battery from the other joycon in the faulty one and see the results

Could be you damaged the ribbon cable to the rail or didnt correctly attach it

 

[Lerayne]

Easiest solution check battery is connected properly.

Then use the battery from the other joycon in the faulty one and see the results

Could be you damaged the ribbon cable to the rail or didnt correctly attach it

Thanks. I tried several times, attached and detached battery and ribbons - they're seem to be intact. If ribbon to the main connector was broken - it probably would't been working in connected state too. Once I had similar problem with my laptop - after I reattached battery it was showing no charge message until I connected the power cable, then everything was OK. So I thought maybe there's something similar in joycon, maybe it "forgets" battery state and needs something like a "restart". Though I didn't found any button combinations to do that.

 

[SANICspeed]

i guess its more likely that you damaged one of the little ribboncables from the connector. i dont think you can fry alot there

 

[Lerayne]

i guess its more likely that you damaged one of the little ribboncables from the connector. i dont think you can fry alot there

I made a silly thing and haven't detached battery while I was making the internal disassembling and cleaning. Maybe I made a short-cirquit someshere. Cables visually seem to be OK, all buttons and analog are working in attached state.

 

[izy]

Depends on what you cleaned it with. 99% alcohol shouldn't conduct

 

[Lerayne]

Depends on what you cleaned it with. 99% alcohol shouldn't conduct

It was like 99% isopropanol, but I may have used a metal pincers to disassemble (I just don't have plastic pincers)