topic Xperia Z1 Rebooting On Screen Lock in XPERIA archive

Xperia Z1 Rebooting On Screen Lock

Chriss96 — Sat, 10 Jan 2015 14:46:17 GMT

Right... I recently bought a Sony Xperia Z1 handset (not new, to my knowledge it has had a motherboard replacement from an authorized service), and I am facing a very annoying error:

Whenever my screen turns off, as in locking the screen, the phone will almost immediately reboot. While I have music playing with headphones connected or while I am in a Skype call, the phone will work just fine.

Before you try suggesting software updates, I'll have you know I tried every possible method out there, including PC Companion software updates and repairs, OTA, even going as far as to manually flash a ROM using Flashtool. I also attempted soft and hard resets and booting in safe mode does not work. Also, the phone does not have a valid warranty and I have no authorized Sony service in my city (or country if I think about it). It doesn't look like the problem is software related. It's just that whenever I lock my screen, either via the power button or through the screen timeout, the phone will reboot.

If anyone knows how to fix this error, I would greatly appreciate it.

Re: Xperia Z1 Rebooting On Screen Lock

Thommo — Sat, 10 Jan 2015 15:38:43 GMT

Remove the Sim card and see if the same thing happens

Re: Xperia Z1 Rebooting On Screen Lock

Chriss96 — Sat, 10 Jan 2015 15:48:37 GMT

I did. I don't have an SD card, so that is out of the question... Same thing happens, whether or not I have a sim card inserted...

Re: Xperia Z1 Rebooting On Screen Lock

Thommo — Sat, 10 Jan 2015 15:53:04 GMT

What about having it connected to a power source does the same happen - I'm thinking battery connection issue but if it still happens then I'm all out of ideas, Could be that when it was repaired it was either not put back together correctly or other damage was caused

Re: Xperia Z1 Rebooting On Screen Lock

Chriss96 — Sat, 10 Jan 2015 15:55:24 GMT

When it is charging (slowly mind you, I prefer slow steady charging), I have no problem turning off the screen.

Re: Xperia Z1 Rebooting On Screen Lock

Thommo — Sat, 10 Jan 2015 17:25:26 GMT

I'm thinking battery connection issue

Re: Xperia Z1 Rebooting On Screen Lock

Chriss96 — Sat, 10 Jan 2015 18:32:54 GMT

I thought so as well, but I opened the phone and checked the connection. The middle connector pin was ever so slightly bent, so I brought it to its original position... Well, so I think... I have no magnifier glass to properly check it... Gonna open it again when I have a magnifier glass and check it... Any other suggestions as to what might be causing the issue?

Re: Xperia Z1 Rebooting On Screen Lock

Thommo — Sat, 10 Jan 2015 18:43:00 GMT

Don't know - If it were a Pc or Laptop then I probably would have performed a reflow of the board which will fix soldering issues as it may have a dry joint or maybe there's a fuse issue - I'm grasping at straws here

Re: Xperia Z1 Rebooting On Screen Lock

Chriss96 — Sat, 10 Jan 2015 19:20:56 GMT

I see... Well, I'll let you know if the battery was the issue after a full-on proper inspection

Re: Xperia Z1 Rebooting On Screen Lock

Chriss96 — Sat, 10 Jan 2015 21:20:31 GMT

Upon closer inspection, one of the battery pins from the motherboard connectors is moving... I'm guessing that means that I have to buy another motherboard... *sigh*

Re: Xperia Z1 Rebooting On Screen Lock

Thommo — Sat, 10 Jan 2015 21:53:04 GMT

I take it some fine soldering skills won't help

Re: Xperia Z1 Rebooting On Screen Lock

Chriss96 — Sat, 10 Jan 2015 22:51:34 GMT

If I could find a motherboard battery connector, then sure. I'm pretty good with soldering tiny components, considering that I can find them...