Reboot-loop when restarting device after lollipop update

[teppej]

Hi, 

I have got an xperia Z3 device and so far everything has been working fine. Since the latest android update however (lollipop), my phone is constantly rebooting itself, when i want to perform a simple restart. I tried the pcc repair tool twice already. it works, but as soon as i want to restart my device, it gets stuck in a reboot loop.

I also tried removing the sim card. It still gets stuck in a reboot loop.

The question I now have is the following. Is this problem gonna fix itself with an update / bugfix or similar, or do i really have to return my phone and get a new one?

Thanks for any information.

[Thommo]

I said above to perform a system repair as it sounds like something went wrong during the update

[Johnz3]

How do i perform a system repair when the phone cant be detected properly in sony pc companion. Please guide me coz i cant do anything since the phone just load and then fails then restarts all the time. the Sony PC Companion require the device be unlocked to access it. 

Thanks for the follow up and help.  I am a PC geek but this is way to far for me since i had not exprienced it on this device before.

[Thommo]

Full instructions on page one post number 7

[Jannik]

Hey Mate!

How does it exactly work?

I pressed the power button, then the sony logo comes up, then the android logo and then there's the blue sony flow.

At which point I have to press and hold the power off button? And how long?

[Thommo]

Not sure where I said to turn it on to perform a system repair if that's what you're asking

[Johnz3]

Hi guys, I managed to perform a repair on my sony Z3 thought i lost everything on the phone, I had no backup at all.  It updated successfully and i started from scratch. 

I used Sony PC Companion, I Hard Switched  off the phone then unpluged from the pc, Then i followed instruction.

Thanks to you Thommo for your kind help.

[rohmux]

Hello, got the same problem and was able to do the repair. The Phone hangs in an endless loop. If i turn it of, wait a few minutes it goes a bit further. After several reboots (with waiting time) i can go through the setup process, but the phone is only usable a few minutes and then reboots. It sometimes also gets a faulty screen (like it is broken in the under half, but only sometimes).

Before the update everything was fine, even after the rollout it worked for 2 days and then problems began.

Help!

[teppej]

have you tried restarting the phone with removing the SD card and or SIM card before? in my case the corrupt SD card was the problem. after I formatted it and put it back in everything was working well.

[rohmux]

Yes i did, first i never had an sd inserted. Without the sim it doesn't work either

Could it be a HW error caused by Lollipop?

[mentor4internet]

Hello,

I got the same problem like a few others after updating android. My Xperia Z3 is starting booting all the time, but it doesn´t start. I tried rebooting with and without memory card, but it won´t work. I cannot connect the Z3 with my computer to save all data because it won´t start a connection, cause it´s still booting. I also tried the hints of rebooting in safe modus, but I can´t start the safe modus.

What can I do now? Is there anything else I can do to start the phone?

Thanks for any help...