I tried to install android 8.1 on my Mi A1 phone by following instructions from this site. After finishing the installation when I tried to reboot the phone, The phone turned off and I cant turn it on again.
When I hold the power button or when I connect the phone to PC, the LED start blinking with a vibration.
Please help... I bought the phone recently and I think I destroyed it in less than a weak :'‑(