Help! Having a problem with iOS 8.1.2!

[Z8beema]

Hi,

I updated to the newest ios and ever since have been having a problem with the lock button. The phone now has a delay of over about 10 seconds and also at times will bring up the slide to unlock screen. This is an iPhone 5. I've tried to restore from an older back up bit that doesn't seem to have helped. Any ideas? Please help

 

[dhlizard]

Restore it and choose set up as new, then test it to see if it's fixed before adding your content back to the phone.