pls help..

⟐ Answered December 06, 2022 at 7:31 MST

⟐ Answered August 19, 2017 at 21:19 MST

⟐ Comment deleted August 06, 2018 at 16:20 MST

⟐ Commented March 10, 2018 at 2:31 MST

⟐ Answer unaccepted February 23, 2016 at 4:07 MST

⟐ Commented October 26, 2018 at 13:55 MST

⟐ Commented August 23, 2018 at 16:10 MST

(just a short background) The owner brought the phone to me with empty battery and unable to charge. After probing, he also mentioned that he had possibly wet it, dropped it a few times, and had smelled faint burning plastic and gets quite warm while it is being charged. He further complained that it could only be charged when the charger is inserted in a certain way or when a specific charger was used.

Now I am beginning to be concerned at this point, thinking the fault might be in the battery’s “over discharge protection circuit” that’s telling the system the battery is too low and it needs to shut down. OR

if the main board as a whole is faulty (now replacing it isnt an option as it costs about same as the new unit).

how do I know it’s the over discharge protection circuit? If it is indeed the case, Can I bypass it either via software or a jumper wire?

What other possible issues have I missed?

Update:

I used another battery and connected it to the mainboard. It did work just fine and was able to game with it.

The issue though is that as soon as the battery is connected the board heats up hitting about 100°F or 50°C on the thermometer even when the device is turned off. The heat becomes uncomfortable within 15-30 mins.

but then again, the phone works and the battery isnt the issue.

Does someone know what could be wrong and if there’s a possible bypass required.

⟐ Answered April 14, 2020 at 22:43 MST

⟐ Commented February 15, 2020 at 2:36 MST

⟐ Answer accepted October 05, 2020 at 3:39 MST

⟐ Answer accepted July 05, 2018 at 5:24 MST

⟐ Commented May 20, 2020 at 4:11 MST

First i tried to replace them with some pads from dead board but the board was so eaten i didn't had any copper to solder them.

So with a very thin sand paper i scratched the surface then i could see the copper.

I've seen that people make bridges with copper wires and solder them slightly up from where usually the legs of the usb port land. But where do i need to put the wires, is there another layer on the pcb? Because i don't see any trace paths.

⟐ Comment deleted August 02, 2018 at 7:52 MST

⟐ Answered November 26, 2017 at 18:53 MST

Is something shorting it?

It does work though I mean it turns on and functions just fine.

⟐ Answer deleted September 02, 2018 at 22:20 MST

my huawei y625 does not read the sims.

the sim reader is intact in its entirety, the phone is correct.

I wanted to know what the problem could be, can someone help me?

thank you

tony