System UI stops working

[Yesenia19]

Hola, mi celular marca iu de sistema no responde, después se traba y tengo que reiniciarlo varias veces para poder tener acceso. 

Hello, my cell phone brand system iu does not respond, then it gets stuck and I have to restart it several times to be able to access it.

gt

[Strampke]

First option is to start in safe mode.

• Switch off your device
• Power on your device
• Then press vol-down untill the phone vibrates
• You'will land in safe mode
• To return to normal mode just restart your device

If this behaviour does not occur in safe mode then probably an app in normal mode is causing trouble.