Chuwi tablet locked and won't connect to wifi

I have a Chuwi Tablet HiPad X Pro, after restart it does not connect to the WIFI network, it cannot be turned on. In the upper left corner is the lock icon. I’ve tried different options like By-pass and others, it still won’t connect to the network - it won’t start. Does anyone have experience on how to restart a tablet?

Is this turning it off and on, or what procedure is it ?

If it doesn’t turn on, it won’t connect to Wi-Fi.

You say it won’t turn on, but how does the lock icon appear if it won’t turn on ?
What happens when you tap that icon ?

After rebooting, it does not turn on or connect to wifi, it just twists and does not connect. When the lock icon is tapped, nothing happens.

You should contact Chuwi customer support: service@chuwi.com