Thursday, 12 November 2015

Hardware Issues after replacing battery, USB/Audio connectors & main board



Need some help, and figured you guys would be the right people to direct me on a fix or at least narrowing down the cause of the problem
Phone - Verizon G2 v980
TLDR - replaced 3 different parts, and now phone display won't show anything - just black.

It all started when I was having some audio issues with the headset jack being loose, and headphones and aux output disconnecting easily and often. It was pissing me off, so I decided to replace it. (I'm no stranger to tearing apart and fixing small electronics but I never worked on the LG G2.
I figured since I was going to open it up, I'd replace the battery at the same time, and bought both off ebay.
When they finally arrived, I opened up my phone following a couple videos I'd found online (btw, no little black screw in mine, as it was a refurbed replacement via squaretrade.)
Unfortunately, through a combo of cheap 3rd party battery with a very stiff ribbon cable, and my clumsy fingers, I managed to destroy the logic board's battery connection port. :mad:

So I went on ebay to find a new board... I found a used verizon 32gb (mine was 16gb) board and got it delivered.
When I put it together, something is not working right, but I can't be sure what it is...
I think the board is bad, but am not 100%.
Screen is black
I can connect the phone to my computer, and it will autodownload the LG Verizon software, and show up in my file explorer. There's some files still there, but it looks like it was attempted to be cleaned, but not factory reset wiped (some personal data still there) but the dates are all showing 1970ish....

I have the phone connected up to the original charger, and the notification light pulses light to dark red as it charges up.
When I plug in the charger, I hear a buzz, and sometimes even a tone.
I hold down the power button, and eventually it vibrates again, and the notification LED pulses blue & green, and there's a brief backlight looking light with some vertical lines, another buzz and black screen. I'd think it was shut down, but it still shows in the computer, and the light to dark red pulsing continues (charging?)

knock on doesn't work

Should I return the board?
Saw some other threads about the proximity sensor, so I can check that out, but I didn't touch the screen...
Thanks in advance!



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