If you can access your phone's settings, this is the easiest method. Open the app. Go to About phone > Backup & reset (or Factory reset ). Tap Erase all data (factory reset) .
If your Redmi S2 remains black or fails to boot past the MI logo after a reset, plug it into an official wall charger for 30 minutes. Attempt to force a restart by holding the Power button down for a full 15 seconds. How to Hard Reset XIAOMI Redmi S2
. Before starting, ensure you have backed up any important files. If you can access your phone's settings, this