Install app via usb: The device is temporarily restricted

Question

When I toggle on the install via USB in developer mode:

• it will pop the toast message said that the device is temporarily restricted

Answer 1

I had the exact same problem, tried all the suggested workarounds, but none of them worked for me. Strangely enough, what actually has worked for me was turning on MIUI optimization (it was turned off when the problem occurred)! After turning it on, I was able to toggle on install via USB.