Reset it to factory settings and start all over again, it may fix the problem for good.

Don't forget to connect it directly to the power brick, DO NOT use the usb port of your TV to power it up.

Actually I used a USB cable that specifically use for charging your devices via a charger (usb cable direct to power w/o sync) through the TV. My MiTv Stick don't encounter reboots when using a USB charging Cable. Don't use a cheap USB cable, it will reboots suddenly. Are you using the USB cable included in your box?

Hi thanks for your answers. Unfortuntly i tried reset through android system menu and also through recovery and it didn't changed nothing. I should have precised that i also tried with original cable, a chromecast cable, with original power supply and with other ones too. And the result is the same. I get the impression that the last update is stressing more my device that maybe barely passed QC tests with original firmwate and now that the system is older, it can not behave as when it was new Trulio

someone managed to solve the restart problem ??

Same problem here - it's getting irritating. Worse part it once it starts . It's getting into a loop. Happens more on all other wifi channels apart from 11. Try using only channel 11 as I felt it being more stable on the same. I had got it to get stock Android experience but didn't know it's buggy. Would have gone with fire stick.

Got mine replaced due to same issue. I thought it was issue with that device but the new one also struck. Seems this is a much bigger issue. Any help would be appreciated!

Is it solved yet?

Here is an update, i could revive my MI TV STick

for more details, see https://www.reddit.com/r/AndroidTV/comments/minc79/mi_tv_stick_revival/

Trying a solution I found on reddit. Just bought one and encountered endless reboot. Used the hdmi extender as the stick gets overheated when directly plugged on tv. Will update!

It's not only about update Device is overheating as hell so that's the main problem