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2016-01-10 10:29 PM
I have a Tablet Z Experia since May 2013 (SGP311 Model /Wifi only) used it the other day with almost full battery (first one) for about 2-3 hours. Battery ran down to about 12%. then tried to hook it on charge but it´didn´t respond. No charging.. checked the cable with another device and it charged fine.. tried other cables on the wall socket, nothing works.... battery has run down to 1% and has died since... also tried the power + loudness 10second drill, nothing... now when I press the button the red light flashes 3times and that´s it....
also tried to put it on PCC and do the repair, but the PC won´t recognize it anymore....
Any help here.. or is the only option to send it to repair??!! :-(
2016-01-10 11:03 PM
connect the tablet to a wall charger > press and hold power & volume up for 10 seconds > let it charge for 2-3 hours then repair it with PCC
"I'd rather be hated for who I am, than loved for who I am not." Kurt Cobain (1967-1994)
2016-01-11 01:00 AM
Welcome to the community,
Failing the software repair, I can only really suggest having the device checked out by a service agent.
Use my signature below to find contact details if needed.
2016-01-19 04:01 PM - edited 2016-01-19 04:04 PM
Nothing broken, just an important mistake in the project:
if the battery is zero, the charge does not start because the microprocessor that manage the charge is not powered.
So the LED turns on for few second but then turns off again.
If you are lucky and the last three or four electrons are able to flow, it starts, if not, it is dead.
I found a quite simple solution, leave the USB charger connecten and at the same time with another power supply 6Vdc I did give power to the two wires of the dock, + on the power button side; just one second to wake up the system, than the charge starts.
I think there is not solution, hardware limit.
Just do not let dischage it completely, set the power manager to switch off the Z at 10%, and use it sometimes
2016-09-27 05:09 AM
You sir are a genius!
Your solution worked fine on the Xperia Z Tablet 10.1 I have here and I have another one at home with exactly the same problem.
The short version is:
Plug tablet into power via wall charger
Since it is impossible to source a dock, cut up a different USB cable to expose red and black wires
While plugged in, touch the red and black wires to the dock terminals - red to terminal near power button (+ive)
After a few seconds it booted up fine and is now charging via the regular cable.
2016-09-27 07:10 AM
No idea with the sound, sorry. The 5 tablets we have here are mainly used by technicians in the field for our forms. We don't use sound so I couldn't say if ours are working or not.
If the headphones work and the speakers don't I would google further to see if its a common problem. Otherwise I can't help.