How to Restart a Crashed Sony Xperia Z Phone:-
When Sony Xperia Z refuses to work, then generally restarting the phone helps to bring it back to life. Of course, you cannot remove the batteries from the casing to initiate a restart, however, the same purpose is accomplished by a key combination.
For this, keep the “Volume Up” key (upper volume button) and then the On/Off button pressed for about five seconds long. After the cellphone has vibrated
briefly, release the keys and the Xperia Z will restart.
This key combination should always work. Nevertheless, if you cannot trigger a restart in this manner, wait till the battery is dead. Subsequently, charge the smartphone and
check whether everything is working again.
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Hope my article “How to Restart a Crashed Sony Xperia Z Phone” helps you to restart your Crashed Sony Xperia phone.