Device not working after Ultra stamina mode

[DavidBA37]

I had low battery so i switched to Ultra STAMINA mode. after i charged the battery i switched the Ultra STAMINA mode off and the device did a reset.

I have inserted the pin code, android was uploading but the device is stuck showing on the screen the word "xperia" with no change  up until the battery is dead again or if im shutting off the device.

i tried to use "xperia companion" but couldn't reset my device nor it could detect it.

can you please advise what can be done here?

[DavidBA37]

Nobody?

Not even support???

[Jetzu]

I’ve read somewhere that you can force a reset pressing both power button and volume up (or down?) for ten second or more. Try that. Anyway, this is just a forum, if nobody can help you here, you must get in contact with your local support service. Don’t know where you are, but here in Spain there is a support chat besides phone support that works rather fine

[Rippendrop]

I have sama problem. I bought it on July and first time this happend was in August, then in December and today. Today I tried pressing both power button and volume at the same time, but it did not help. After a few tries phone restarted and after a few minutes finally started working. I've read some problems in ultra stamina as far as 2015, so it should've been fixed now.