Android rk322x_box TV box on Andorid 6 tries to occasionally update and fails

I have an Android TV Box (MXQ-4K) Android/rk322x_box/. This device is on Android 6 and I bought it online; it came pre-rooted. It worked fine and then I stopped using it. Now after few years, I have started using it again. It worked fine for few days, but now after few months, during YouTube video (which I use it mostly for) it just randomly tries to update without any cancel button, turns off with the DRIOD icon tries to update then the recovery screen appears telling, update aborted, turn off the device. How can I fix this? Or at least simply disable the auto system update?