How to safely shut down or force shut down Cowon devices

How to safely shut down or force shut down a Cowon-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.

Cowon Z2 Cowon Z2
Cowon D3 Cowon D3