Help Lollipop update issue

[Paula Greig]

I have Sony xperia z and recently updated to lollipop since I have done this I can't access text messages or send and receive them, the battery drains within 2 hours and takes hours to recharge. My phone also crashes and restarts constantly. Any help will be much appreciated. Thanks

 

[funkylogik]

This is a harsh measure you're not gonna like but what I'd do is back up everything important to you and do a Factory Data Reset (this will wipe all user data, pics, apps etc) but if it doesn't fix your phone then it's probably broken.
Big updates like lollipop leave bugs in the settings and apps you have installed and really every manufacturer should warn that a factory reset may be necessary.
(if you do reset and your phone still runs like shit I'll pm you my address and you can give me a free punch to the nose ok lol)