How to safely shut down or force shut down NIU devices

How to safely shut down or force shut down a NIU-branded device if it is unresponsive, screen broken or broken, without using the buttons or using only the buttons without swiping or using the screen.

Search for your device model and find the steps to turn it off, whether it is a mobile phone, tablet, smart watch or activity bracelet.

NIU Niutek N109 NIU Niutek N109
NIU NiutekQ N108 NIU NiutekQ N108
NIU Niutek 3G 4.0 N309 NIU Niutek 3G 4.0 N309
NIU Niutek 3G 3.5 N209 NIU Niutek 3G 3.5 N209
NIU Niutek 3.5B NIU Niutek 3.5B
NIU Niutek 3.5D NIU Niutek 3.5D
NIU Niutek 4.0D NIU Niutek 4.0D
NIU Niutek 4.5D NIU Niutek 4.5D
NIU Niutek 3.5D2 NIU Niutek 3.5D2
NIU Tek 4D2 NIU Tek 4D2
NIU Tek 5D NIU Tek 5D
NIU Andy 5T NIU Andy 5T
NIU Andy 5EI NIU Andy 5EI
NIU Andy 4E2I NIU Andy 4E2I
NIU Andy 3.5E2I NIU Andy 3.5E2I
NIU Andy C5.5E2I NIU Andy C5.5E2I