power button not working

[heyaaxox]

so on monday i was just sitting doen when i went to use my phone and i pressed the power button and the screen wasnt lighting up so i decided i would just plug it into the charger and yeah it worked but any time i wanted to use my phone i had to either hold the camera button down but that barely ever worked so i had to use the charger until wednesday night when i went to bed and normally i plug my phone when i go to bed but i was tired and my battery was at 69% so i thought i charge it in the morning i tuned off the wifi and everything but when i woke up it wouldnt turn on so i plugged it into the charger and it showed the battery screen ive been trying ever since to get it working like plugging it into my laptop holding colume button down everything also its sony xperia m so there isnt a small off button at the back in case youre gonna post that so if anyone knows what to do it would be much apprieciated 

[Hampus]

Hi,

I suggest that you visit nearest service center in this case. This sounds more related to a hardware problem than a software problem. You can contact your local support team for further information about nearest service center and/or how to proceed with this in the best possible way:
http://www.sonymobile.com/global-en/support/contact-us/contact-info/