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Samsung Galaxy A21 - Restart Device

2026-10-22 19:06:03.148

Samsung Galaxy A21 - Restart Device

Here's how to restart your Galaxy A21 if it crashes and resets, freezes or runs slowly.
Restarting your Galaxy A21 can help if you experience continuous resetting / rebooting, crashing, freezing or if the touchscreen is unresponsive.
  • Since this device has a non-removable battery, the restart (soft reset) process can be used to simulate a 'battery pull' when the device is unresponsive, frozen or doesn't power on.
  • In rare cases, a restart could affect data (e.g., backup in progress, cached data, etc.).

Preferred Method

  1. Press and hold the
    Power button
     (right edge) until the 'Power off' prompt appears then release.
    If the device is unresponsive, attempt the alternate method.
    Power off menu
  2. Tap
    Restart
    .
  3. To confirm, tap
    Restart
    .
    Allow up to 30 seconds for the reset to complete.

Alternate Method

  1. Simultaneously press and hold the
    Power button
     and
    Volume Down button
     (right edge) until the Samsung Galaxy screen appears then release both buttons.
    Allow up to 15 seconds for the Samsung Galaxy screen to appear.
    Volume down and power buttons