REPRODUCIBILITY (% or how often): happened twice so far
BUILD ID = OS VERSION (Settings > About product): 3.4.0.22
HARDWARE (Jolla1, Tablet, XA2,…): Xperia 10
UI LANGUAGE: Slovenian
REGRESSION: (compared to previous public release: Yes, No, ?): yes
DESCRIPTION:
Twice so far I woke up in the morning with the phone asking for my unlock PIN - it rebooted overnight.
I my case random boots while charging or without charging were happening every second day for Xperia 10 when 3.2.x was installed. With 3.3.x it has been reduced to twice or so per month.
If I recall correctly then 3.3.x changelog also mentioned this improvement. I also had a look at 3.4.x changelog and there seemed to be no mentioning of Xperia 10 reboots. So I assume that would stay at “twice a month” level.
I’ve had random reboots on both Xperia X and 10, but they only happened when I tried to wake up the phone (I opened a separate report for that). The phone rebooting on its own while charging is new to me.
Have the same issue when using a fast charger on XeperiaX. It reboots when hitting 100% level. Maybe it is a voltage regulator issue. When charging is stopped, there may be a short voltage drop which causes the reboot.
But in my case I’m dealing with this issue since I exchanged the accu to a new one. Never happend before with the first one mounted by manufacturer.
I don’t know when the phone rebooted - both times I picked it up while it was still connected to the charger, and the screen was asking me for unlock code.