It is an unrooted nexus 7 using the latest stock android version (4.4.2). I got the the update OTA several months ago and it worked well since then.
I tried the power button for more than 30 seconds, the volume down + power button together for several seconds and the 3 buttons simultaneously (2 volume buttons and power) for several seconds and it did not respond.
I connected it to charger (its original charger but not the original cable. I use this cable since the original one stopped working) for several hours and it did not show any sign of charging and still no response for any buttons.
I connected it to PC and it shows APX mode in device manager and still no response to any button combination while connected to PC. The only thing that happens is that after pressing the power button for around 10 seconds while connected to PC the device gets disconnected and reconnected instantly to PC but no signs of life at all on N7.
I even opened the back of the device to manually disconnect and reconnect battery and nothing happened.
Can anyone help me with this? Is there anyway to get the nexus back to life?
Thanks in advance.