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Samsung Galaxy S9 / S9+ - Restart Device

2026-10-22 22:10:26.873

Samsung Galaxy S9 / S9+ - Restart Device

Here's how to restart your Galaxy S9 / S9+ if it crashes and resets, freezes or runs slowly.
Restarting your Galaxy S9 / S9+ 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 button
  2. Tap
    Restart
    .
  3. To confirm, tap
    Restart
    .
    If your device won't power back on, partially charge the device then retry.

Alternate Method

  1. Simultaneously press and hold the
    Volume Down button
     (left edge) and the
    Power button
     (right edge) until the 'Maintenance Boot Mode' screen appears then release.
    Power and Volume down buttons
  2. From the 'Maintenance Boot Mode' screen, select
    Normal Boot
    .
    Utilize the volume buttons to cycle through the available options and the lower left button (below the volume buttons) to select.
    Maintenance Boot Mode with Normal Boot
  3. Allow several seconds for the reboot process to complete.
    If your device won't power back on, partially charge the device then retry.