sony experia xz premium restart before starting

[Marius6]

hi my sony experia xz premium is restarting by himself before starting i try everything to start it but is not working what can i do ? i used xperia companion program and i try it xperia software repair and is still the same ... any sugestions?

[CameronT]

Hi @Marius6, welcome to the community.

To confirm, when you say it is restarting before starting, do you mean that when you turn the phone on, it will turn off and then back on again, then remain on?

Or is it constantly restarting itself over and over?

Can you also please clarify the steps you have taken so far so we don't get you to repeat anything?