kit kat failure

[foxtorq]

Since i have updated my z1 with the latest version the screen stay on with sleep mode, i mean it still showing some light.
Also i cannot turn my screen when i watch a video without having to reboot my phone.

The touchscreen **bleep** and the battery as well and yes all those things since the update.

The phone crash all the time the gps is not working well, its is slow and overheat, seriously give us a way to come back to jelly bean or downgrad the phone because it **bleep** totally now.

[Thommo]

In circumstances like this I would advise performing a system repair which is also what I do after any upgrade

Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)

Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the onscreen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process

If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP