Originally Posted by targett
I have a relatively new (refurbished) nexus 7 (2012) that got a sudden fault of not turning on at all.
When plugged in I get the normal charging icons (central screen) as when the tablet is off.
Unplugged it does nothing with any button press: power, power + all combination of volume buttons.
Pledged in it does something only with power button - backlight turns on with dark background and flickering stripes of static.
Plugging into pc shows nothing.
It's been sent if for repair and they said the battery was ploughed in backwards! And they've swapped it around.
I don't get how it worked for a month if it was the wrong way around in the first place.
Sent back to me this week with no change!!
Suggestions of ways to resolve it my self?
Sent from my HTC One using Tapatalk
You can open the back plate of the Nexus 7 yourself. It comes off fairly easily. You can then see if the charging port is clear of debris, if it might be slightly bent out of shape, or if somehow the battery is connected backwards... LOL. That seems highly unlikely to me.
What you are describing sounds more like sleep of death, or what happens when you drain the n7 battery completely. Something is wonky with the firmware and it "forgets" how to charge when the battery is too low. Doing this off the top of my head but I think what you are supposed to do is;
1 - plug in charger, which starts the charging animation.
2 - hold power+volume up+volume down to boot into the bootloader
3 - using the volume buttons to scroll, select reboot (or recovery)
4 - quickly unplug then plug back in the charging cable. Timing is key.
There is a thread in the Q&A forums with other methods if I didn't write that down right, or it if doesn't work.
GS4 - Sacs Custom 4.3 ROM v5 / MK2 Baseband / TWRP 2.7 / MF9 bootloader
Nexus 7 2012 - SlimKat / TWRP 2.7 / m-kernel a67