Troubleshooting - Sony SGP512 Startup Manual

Troubleshooting

My device is not responding
If your device hangs, or if you cannot restart it normally,
you can force the device to shut down.
To force the device to shut down
1
Press and hold down both the volume up key and the
power key
2 After your device vibrates three times, release the keys.
The device turns off automatically.
for 10 seconds.