[Q] system ui stopped looping problem topic

i keep getting the System UI stopped error, hit ok comes back.
i have tried wiping the whole phone with TWRP before flashing cm12 rom, phone boots just fine, hit the power button to turn off the display, turn it back on i get the system ui stopped error over and over.
tired installing XPerience rom same problem, so its not a cm12 problem.
does anyone know whats causing this?
yes i have used the search and google, nothing i found fixed the problem.
please help

Enable Mobile data -> Portable Wifi Thethering looping topic

Hi,

when I activate Wifi Portable Tethering and after that activate Mobile Data, my Wifi Portable Tethering starts to loop -> enable / disable. Alredy tried to delete "data/misc" and "data/misc/wlan" but no success. I'm on Android 4.4.2 verion.

Does anyone knows how to solve this problem (mobile is rooted :) )

THX