I've already ask this question on sonymobile forum, but have no result. Trying to post it here.
I upgrade my Z1 to 4.4.2 and get the next issue.
When I switch off my phone with long press power button -> "swich off phone", its successfully shutting down but after 5-10 sec. show startup SONY logo then swich off display then show logo again and so on endlessly...
It was very unexpectedly, when I swich off Z1 and put it into pocket, after cuple of days I found it totally discharged. I cant make phone alive with wall charger and only 2-3 hours on USB charger can reanimate Z1.
I was try everything what I read no docs and forums, reflash with SUS and sony PCC, flash different versions of FTF via flashtool, boot on safe mode etc, but nothing helps :(
Is there software problem with shutdown loop or problem with battery controller or something else? How can I fix it? Any considerations?
P.S. Small "force shutdown" button or Power+VolUp combination sometimes helps to shutdown phone.