Hardware >> Mobile >> Samsung >> Galaxy >> How to perform force restart or simulated battery disconnect with the phone physical buttons

 

Force Restart

To force restart your device, press and hold the Volume down key and Power/Lock key on the device for 10–20 seconds. This performs a simulated battery disconnect.

 

References

[1] https://www.samsung.com/ca/support/mobile-devices/how-do-i-force-my-galaxy-s7-to-restart-screen-is-frozen/