Xperia mini pro restarting randomly

[Xmp]

Hello.

I have problem with Xperia mini pro (Black, sk17i).

Phone have often restarts when the display going to turns off.

I working without SIM card and with swiched on Wi-Fi.

The same thing I saw when I haven't signal from operator.

...terrible thing 😕

...I hope You will help me.

(sorry for my ENG)

Issue is solved... kind of

This is a normal feature in phone. If there is no SIM card or no network signal, after going into standby mode the phone is restarting.

But we can skip it after switching ON "Airplane Mode" <- or kind of that.

[MarlonUk1]

1.) perform a settings restore settings>privacy

2.) try to use another sim, preferably a new one

3.) perform a factory data reset or repair software using Sony Update Service

check if there are apps that might be causing this, ususally task killers, ram boosters, anti virus .etc.