Why can't the flashlight of Xiaomi 4 update system work?

Your question suggests that you slide the notification bar to the right and click the flashlight shortcut button. If it is normal, you can turn on the flashlight by pressing and holding the home button in the lock screen interface. If the problem is not solved, brush the machine according to the tutorial, or go to the nearest Xiaomi home for help!

Your mobile phone problem suggests that you back up your important data first, and then brush the whole package (it is recommended that you brush the latest development version)

Please brush your teeth according to the brushing tutorial. The download address of the brushing tutorial and ROM package is/thread-1666183-1-1.html.

This is the video of rice noodle brush:/v _ show/id _ xnteymjq1mzi4.html.

If the problem is still not solved after wire brushing, please go to the maintenance point near you for maintenance and testing.

Address and telephone enquiry: /c/ service/post office/

For more miui skills and promotion, you can pay attention to MIUI official Weibo /miui official WeChat MIUI rice pomelo.