broken xiaomi redmi 4x screen

[Android Central Question]

How to swith off this phone,when screen is unvisible and all the time when i'm trying to swith off that take and restart only,cant backup thru PC because MIsuite is writing that need to update phone,or i just need to wait when battery will be emty?

 

[B. Diddy]

Welcome to Android Central! Try pressing and holding Power for about 20 seconds to force a shutdown.