[G2 Q&A, Help & Troubleshooting] suiller:
I don't know if this is the right section, anyway because it isn't specifically hardware related I posted here... for admins feel free to move in the appropriate thread.

My G2 dropped on the floor and as result I got a complete broken display plus not working touch.

The device, touch apart, worked without issues so as 1st step I made a full backup of sd-like content (music, pictures, etc...) to my laptop.

note: even if touch didn't work I was able to access the device trough adb and a very useful utility (http://marian.schedenig.name/2014/07/03/remote-control-your-android-phone-through-adb/)

Next I ordered a replacement for the display, looked for instructions and changed by myself... and the phone didn't boot or even charge... nothing, the only signal of life was when attached to the wall charger the led blinking in red eight (8) times consecutively then no blink for a second and again blink for 8 times and so on in an infinite loop.

Of course I started to look for solution and tried every kind of combination but none worked.

I started to think that I missed up something during the display replacement or the battery fault or even I fried in some way the motherboard, anyway for what I read it supposed that could be that the battery gone under certain voltage or minimal charge so the motherboard circuit didn't recognize as "good or safe battery", it is simply bypassed by charge circuit.

note: I waited for the new display about 10 days and the device (fully charged) slept (turned off) in a drawer so I don't think it was totally discharged

I disassembled and reassembled again the device but nothing happened so while looking for a solution I saw a video on Youtube (https://www.youtube.com/watch?v=MZwknmWCmOE) solving a issue similar to mine so as instructions I took an old charger (800ma), cut the charger connector and exposed the 2 internal wires (one red and the other gray/black).

Then I opened the device, disconnected the battery and attached directly into the battery connector the two charger wires (in this way mobile motherboard is bypassed).

I used a small piece of tape to stop and make touch laterally the 2 wires to the connector, something like: dark wire -> [ battery connector] <- red wire

Keep in mind that the connector is something very small like (0) where left parenthesis is for dark wire and right parenthesis for the red one.

note: you can't wrong with wires, because the positive (on the battery connector) has a small white triangle.

Of course I found a way to don't move/mess wires before connecting the wall charger... I put another piece of tape at 20cm on the table to keep the cable charger fixed near the phone, then I attached the wall charger...

remember: attach the charger to the wall ONLY when you have finished to place/fix the contacts!

Waited just 1 minute because exposed charger wires was very close and didn't want to fry something... but it was enough!!

Reconnected the battery and voilà the phone turned on! :cool:

The phone turned on with almost 80% of charge, all seemed to work... except that I found 2 issues... I suppose because the case didn't match perfectly anymore (I opened the device 4 times and disassembled-reassembled twice)

1st speaker didn't work, so I reopened the device and checked the speaker connector, I discovered that the speaker didn't touch very well so I put a small stripe of tape under the connector (the small vertical green stripe in the lower side of the phone) to lift it and making touch stronger with the speaker module (the black part the come out), here on Youtube for reference: https://www.youtube.com/watch?v=XE2FPmFUrQQ

2nd GPS didn't work very well (discovered after a couple of days) so I reopened the device and applied this solution that worked perfectly: https://www.youtube.com/watch?v=dfS4LpfcLfg

This is my story in the hope to help someone, if you have apparently a total dead phone and the only signal of life is a 8 times blinking red light... now you know what to do!

Regards,

Davide