Help Help !! my G3 shows a very strange sign while charging

[Moeed Shahid]

when i plug in the charger while the phone is shutdown, it shows a sign i cant figure out , and it doesnt charges !

here is the image of that sign. (WIN_20150809_121700.jpg) + (1.jpg)

however when i plug out and start the phone, it runs for 40 seconds and then says "Invalid battery, shutting down".

i deliberately dropped my phone from 2 feet on a mattress and that issue went away but it started giving a big yellow question mark on the screen.

Is there a problem with the battery only and/or my phone's circuit is damaged.

 

[AMOCO]

Pop the battery out and put it back in and see what happens.And if that won't fix it,Try a factory reset.

 

[Moeed Shahid]

Pop the battery out and put it back in and see what happens.And if that won't fix it,Try a factory reset.

Did it million times, same result ! also tried a reset, nothing changed

 

[AMOCO]

You could try and reflash the stock firmware and that don't fix it,It is most likely a hardware issue:
LG G3 Return To Stock link:
http://forum.xda-developers.com/showthread.php?t=2785089
If you decide to go this route,Be sure to remove your sim and sd cards until your done flashing back to stock.As it will wipe those cards clean.Then after done flashing,You put them back in.

EDIT: Be sure to use your devices proper variant.

 

[quickaudi]

Looks like it is telling you that your battery is not a legit LG battery. I think there might be an issue with your charging connectors. Make sure all of them are standing up. I read about this issue with several G3 - if you don't put the battery in correctly, it bends them and you don't charge.