Share your experience!
Hi Yesterday update my phone with the latest version of the software from sony for my xperia z3+, when testing new ultra stamina mode function the phone only shows a message about that option is not supported, I am currently stuck in stamina mode and already can not use it, what I must do to return it to normal?
@Seihend Try settings - apps, tap on the gear icon, show system. Scroll down to stamina, foce stop, clear data. Restart.
Alexdon the problem is I can not use the phone because the message on the screen(this app is not compatible with ultra stamina mode) is allways on the screen
Safe mode didnt work , I just restart it and lost all the pictures of my son , 
Ultra stamina mode need to be fixed .
@Seihend Perhaps the photos are not lost, it only needs more time to reindex all of them.
I mean , factory reset from xperia companion .
just so I could back the phone, but I lost everything
@Seihend I didn't tell you to reset, a restart means turning the phone off then back on. And a system repair didn't help?
I understood you perfectly , but could not use the phone in any way, the message on the screen was always on the screen and would not let me do anything.
Anyway , Im using the phone again like new one . but I will never use Ultra stamina mode never a ever.
thanks for your help guys