Nexus 7: Replaced LCD and digitizer & now it won't charge

[andr01dm]

Hello.

Yesterday I replaced the broken digitzer (& still working LCD) on my Nexus 7. They both work fine, but now it refuses to charge; I get the battery charging symbols when it's powered off but it doesn't take a charge. When booted into Android I get the text "Plug in the charger" on the unlock screen, even though the charger is plugged in.

I've tried several fixes that I've found online:

• hold down power button for 30 seconds or more
• boot into bootloader, power off, unplug USB charger, plug it back in again
• factory reset

I've also tried charging with the dock, which also fails. I've opened it back up again and triple checked the battery & USB connectors to the motherboard. The battery was sitting in a box with the rest of the parts for almost a month while I waited for the screen to arrive from Taiwan. It's unlocked but running stock 4.2 Android.

Any suggestions..?

 

[andr01dm]

My partner noticed that even though it's complaining about the low battery, it isn't shutting itself off. So I've had it playing NetFlix for the past hour with 0% battery showing. I guess it's just really mis-calibrated. >.<

 

[andr01dm]

Follow up:

I manually installed 4.3, then rolled back to 4.2.2, and it made no difference.

Opened up the battery wrapper, but didn't see any obvious issues.

Guess I'll have to try a new battery to see if it's a hardware problem, but since this one works (aside from always reporting 0%) it's a pretty low priority and it'll be a while before I do it.