Power Button software problem

[PowerButtonprob]

My problem when i hold the power button longer then no window comes and i cant make a screenshot because it dont work with the button. To lock the phone works, but the other thinks not. It must be a software problem.

I have the Xperia SP with the Android version 4.3 Jelly Bean. Its not rooted or something like this.

I hope you can help me or somebody can report this. I mean it can be right that i cant shutdown my mobile phone or make a screenshot!

Thanks for reading and sorry for my bad english, I'm from Germany

[Uliwooly · Accepted solution]

Press and hold Power & volume down at the same time 

[PowerButtonprob]

Thats right, but it dont works 😕 

[Uliwooly]

You have to press and hold them at the SAME TIME otherwise it is not going to work 

[PowerButtonprob]

Thats not the Problem, bro. The button dont do anything, i mean when i hold the button longer nothing happend, but when i thold it short it locks the phone. Its a Software Problem

[PowerButtonprob]

And by the way, this post is not solved! How can i remove this?

[Uliwooly]

Repair your phone with PCC

PC Companion (PCC)

Bridge (for Mac)

Alternatives on How to backup Xperias

http://talk.sonymobile.com/thread/36355

[PowerButtonprob]

yeah, but its nothing to repair 😕 i think its a problem by sony... When my battery is emty its shut down and when i start it i have no problem for about 2 days, then the problem is back and i cant work with the power button unless lock the phone 😕

[ShinOrochiX]

It is not a wide spread problem, as far as I am aware no one else has reported it. Sony is not going to fix anything, the Xperia SP has reached end of life so will not be getting anymore updates. I am almost certain repairing the software via PCC will fix the issue-just try it.

[tamilatanu]

I have experienced same every now and then. What's this issue?