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oscarfh

Xperia T, bought 2 months ago. It shuts down by itself several times a day and in the night when it´s not being used. It doesn´t reboot, it shuts down. To revive it it´s necessary to reboot using the power and volume-up buttons. The software is 4.0.4/7.0.A.1.303. The update programs report that it´s updated and that there isn´t updates available. The software was re-installed using PC Companion, but this didn´t solve the problem.

Any known solution?

Uliwooly

it might be a faulty SIM card causing this issue, get a brand new MICRO SIM card

View solution in original post

Uliwooly

it might be a faulty SIM card causing this issue, get a brand new MICRO SIM card

oscarfh

I replaced the SIM card with a new one and have used the phone with it for about a week. It seems that this solved the original problem. The phone is no longer shutting down itself frequently.

However, it has shut down itself twice while charging. When this happens, the notification LED is white. The phone can be restarted pressing and holding the power key until the phone vibrates. It´s not necessary to enter the PIN number.