Xperia U battery issue

[#1]

Hi!!

My xperia U last sunday drainned the battery and without any warning it switched off. The problem is that he was informing that he had about 50% of battery.

After that he took at least 2 hours charging before i could switch it on again.

At this moment it happenned again and i cant turn it on again.

Does anyone knows this problem?

[Jake-SonyXperia]

This could be due to a software issue on the device, I would suggest performing a repair to the phones software using the Update Service, I have supplied a link below,

Update Service:

http://www.sonymobile.com/global-en/tools/update-service/