Vibration issue?

[ym78900]

Hi , My Z1 has a vibration problem .... when I use my phone for about 2 hours and specially for surfing the net, it suddenly starts to vibrate and it never stops till I shut it down . This problem happened after I update my mobile's firmware to the new version(14..2.A.1.136) ... (Android 4.3)

I t did not have this problem in the previous version ...

I would be grateful if you could help me

[_alexdon_]

Boot your phone in safe mode,see if the same occurs:

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008#U348008

If it does not occur,there is an app acting up.

[ym78900]

thank you ... but right now I don't have any special applications in my phone because I changed my firmware another time to the newest version to see the problem happens again or not ... but unfortunately it happens and I guess It doesn't relate to applications ..

When I changed the firmware to the old one It didn't happen even with all my applications .. but the problem is that the update notification always shows on the top of the screen .

[_alexdon_]

Settings-apps-all-update centre,clear data and force stop.About the vibration,you should visit a sony service:

http://www.sonymobile.com/global-en/support/contact-us/