topic Re: why Xperia U restart all the time in Other/General

why Xperia U restart all the time

arch9804 — Thu, 04 Feb 2016 13:33:21 GMT

Why my Xperia U restarting over and over again with some kind of flash I don't know what is that. Someone help me please! It stuck at Xperia logo followed by some kind of flash on the screen.

Re: why Xperia U restart all the time

MarlonUk1 — Thu, 04 Feb 2016 14:24:43 GMT

it is called a bootloop.
where you trying to flash it with a custom rom?

try to repair it using http://support.sonymobile.com/gb/tools/pc-companion/ (assuming you did not unlock bootloader)

If you tried it flashing with custom rom, try to do the process again,

Re: why Xperia U restart all the time

Christofer — Thu, 04 Feb 2016 16:46:37 GMT

Hi @arch9804,

You can try removing the battery in your Xperia U to stop this. However, if the same thing starts again when you put the battery back in and power on the phone you should try performing a software repair using PC Companion as nolramlb suggested.

Re: why Xperia U restart all the time

arch9804 — Thu, 04 Feb 2016 23:48:21 GMT

I have tried it many times using pc companion but unfortunately my laptop cannot detect the device. Disconnected show up.

Re: why Xperia U restart all the time

Christofer — Fri, 05 Feb 2016 11:10:43 GMT

Do you get as far as step 10 in the software repair guide (http://talk.sonymobile.com/t5/FAQ/How-to-perform-a-software-repair/m-p/1061294) before you are unable to proceed?

Re: why Xperia U restart all the time

arch9804 — Sat, 06 Feb 2016 06:23:11 GMT

The link is invalid. Unable to proceed.

Re: why Xperia U restart all the time

_alexdon_ — Sat, 06 Feb 2016 09:47:34 GMT

@arch9804 The link should be ok now.

Re: why Xperia U restart all the time

Christofer — Tue, 09 Feb 2016 08:07:40 GMT

@alexdon Thanks for the edit.

Re: why Xperia U restart all the time

collins4711 — Tue, 18 Jul 2017 20:24:40 GMT

Hi Chistofer,

I am also having a problem with boot loop, I have also tried using the Companion Software Repair but it stoped and says software error, contact Sony support.

zorro4711

Re: why Xperia U restart all the time

Uliwooly — Tue, 18 Jul 2017 20:38:08 GMT

@zorro4711

Do you experience the same without the SIM and SD cards?

Re: why Xperia U restart all the time

collins4711 — Tue, 18 Jul 2017 20:48:35 GMT

Hi Uliwooly,

Yes have tried removing the cards and battery in/out, still boot only displays Sony logo then Experia logo ona loop!! I can only stop it looping by dissconnecting the battery.

Re: why Xperia U restart all the time

Uliwooly — Tue, 18 Jul 2017 21:10:45 GMT

@zorro4711

that seems to be a hardware issue and you will have to get it inspected by your Local support