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Samsung Galaxy S21 5G / S21+ 5G / S21 Ultra 5G
Restart Device

2026-10-05 15:06:52.882

Samsung Galaxy S21 5G / S21+ 5G / S21 Ultra 5G
Restart Device

Try restarting your Galaxy S21 5G / S21+ 5G / S21 Ultra 5G for issues like freezing or slowness. This clears software issues and restores the device to its normal operation.

Steps

  1. Press and hold the
    Power / Side button
     and
    Volume down button
     until options appear.
    If the device is unresponsive, press and hold the
    Power button
     until the device power cycles (approximately 30 seconds) then release. Allow several seconds for the reboot process to complete.
  2. Tap
    Restart
    .