topic Re: Reboot loop in Z Series

Reboot loop

Mizuhashi — Sat, 30 May 2015 04:43:25 GMT

so i downloaded an app yesterday in app store's editor's choice apps, i tried fleksy keyboard since it can send gifs etc. (my phone's sim card slot is empty at this time)

the next day, i wanted to reinsert my sim card. after restarting the phone, it automatically reboots after the lockscreen shows up for about 2-3 secs (and sometimes it doesnt even reach the lockscreen and just restart after taking a long time loading in that purple screen).

when i managed to unlock my phone in that interval, i see all my widgets are giving errors messages and there's an app crash notification which says

''Fleksy has crashed'' and i cant press the OK or REPORT button.

i did some research and found out that the phone can be fixed by entering safe mode and delete the app. i've tried various ways to enter safe mode and all of them failed.

- i tried to enter safemode by rebooting from long pressing the turn off button in that 2-3 secs interval and select the reboot in safemode option.

- i tried holding the volume down button and turn the phone on and it fails as well.

- i tried turning on the phone and when the sony logo came i press volume down and was supposed to hold it until the lockscreen shows up (but when i try this method, the phone doesnt even reach the lockscreen and rebooted before it even shows up)

So i'm pretty desperate right now since i got a lot important files that i haven't backup inside the internal storage. any advice is worth to try. i dont want to reset my phone to factory settings by using Sony PC companion repair function since it will format the storage.

any help is welcome. Thanks

**UPDATE:

now everytime i try to turn it on, it doesnt even reach the lockscreen anymore. it reboots itself after a long loading time in the purple screen

Re: Reboot loop

Phy — Sat, 30 May 2015 06:08:42 GMT

Take out the sim card and sd card and boot on safe mode. If that doesn't work repair it with Sony PC Companion, but it will delete everything.

Re: Reboot loop

Phy — Sat, 30 May 2015 06:09:24 GMT

Contact Sony Xperia Support.
http://support.sonymobile.com/global-en/contactUs/

Re: Reboot loop

Mizuhashi — Sat, 30 May 2015 07:22:20 GMT

dear phy, thank you for your reply

i already took everything out.

i'll use PC companion as a last resort, for now i'm looking any other solutions that doesnt involves memory lost.

Re: Reboot loop

Phy — Sat, 30 May 2015 08:00:45 GMT

I believe Thommo suggested to use flashtool and exclude the data.

Re: Reboot loop

Phy — Sat, 30 May 2015 08:02:28 GMT

And uliwooly has a guide on how to use the flashtool.

/t5/Xperia-Z2/How-to-manually-update-downgrade-root-2014-Xperias/td-p/593459

Re: Reboot loop

Mizuhashi — Sat, 30 May 2015 09:24:17 GMT

i dont know anything about flashtool, since i never intended to root my phone.

please explain to me more about flashtool and what are the consequences. exclude the data ? do i root my phone without afecting the data in it?

thank you for your reply

Re: Reboot loop

Uliwooly — Sat, 30 May 2015 18:33:26 GMT

@Mizuhashi

You are not going to root the phone, you are going to flash it.

Re: Reboot loop

Mizuhashi — Sat, 30 May 2015 23:17:59 GMT

@uliwooly

so, i won't lose any data in my internal storage? since it's full ..

Re: Reboot loop

komilAD — Sun, 31 May 2015 04:27:40 GMT

You won't lose data if you untick wipe data in flashtool. But mostly it is recommended to wipe everything when flashing roms. BTW you still requires a ftf file to flash. So i recommend xperifirm to download.

Re: Reboot loop

Mizuhashi — Sun, 31 May 2015 05:29:28 GMT

Thank you guys for all your help, i fixed my phone just now by flashing it.

The phone was fixed because the phone thought that it was upgraded and it optimized all apps when i turned it on, but when it's on the phone was laggy and the widgets shows error notice so i immedietally reboot to safe mode and uninstall some apps that i just installed. And now the phone was fixed and is faster than ever. No data was lost with this fix since i untick the DATA in flashtool.

Once again, thanks guys i cannot thank you enough for helping me ^^.

Re: Reboot loop

Phy — Sun, 31 May 2015 18:55:01 GMT

No problem. I'm glad @uliwooly 's flashtool guide was able to help you.