How to hard reset Samsung Galaxy S10: Looking to hard reset your Galaxy S10 device follow the below steps,
Step 1: Switch off your Samsung Galaxy S10.
Step 2: Press and hold the Volume up, Bixby key and Power button at the same time.
When Samsung logo appears on the screen, release power key in your galaxy S10. After few seconds, the android system recovery screen appears.
Step 3: Press volume down button until wipe data/factory reset, after press power button to select it.
Step 4: Press volume down button until Yes select, then press the power button to start reset process of resetting the galaxy S10.
Step 5: Press volume down button up to reboot system now and press the power button to restart your galaxy S10.
Factory reset the Galaxy S10 One UI
Step 1: Swipe down the notification panel from the top of the screen and tap Settings gear icon.
Step 2: Tap General management.
Step 3: Tap Reset.
Step 4: Tap Factory data reset.
Step 5: Tap Reset phone.
Now confirm your PIN number or pattern to unlock your device.
Step 6: Tap Delete all