Accidentally entered to the restricted user. we forgot the pin! so can't go back!

so tried to reset factory the device!

but with a false help to use home + menu keys to enter the recovery mode! now remote is unpaired from the mi box s and can't pair it again!

so I can't exit restricted user, can't reset factory the device, and can't use the box anymore! I have a USB mouse and key. have a google account on the device. tried every pin I remember. tried iMyFone Lockwiper with a male-to-male USB-A connector, but nothing works...

I thought it has a reset factory hardware button at the beginning, but disappointed...