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How to use the Bootloader
The Bootloader can be used in situations when your phone can't start normally, or when you need to use specific system tools to help you solve issues. You might need to use it in situations such as:
  • Factory resetting a phone that can't otherwise be reset
  • Rebooting a phone that can't otherwise be restarted
  • Wiping the cache partition
  • Viewing key information about your phone
Warning: We strongly advise against using options that you are not familiar with.
To navigate the Bootloader:
  • Use the VOLUME UP and VOLUME DOWN buttons to select items.
  • Press the POWER button to use the selected item.
Follow these steps:
  1. Ensure the phone is turned off.
  2. Press and hold the VOLUME DOWN button.
  3. Press the POWER button.
  4. Continue to hold VOLUME DOWN until the Download mode is displayed.
  5. Press VOLUME DOWN to go to Reboot to bootloader.
  6. Press the POWER button.
The following options are usually available in the Bootloader:
  • REBOOT – Restarts the phone normally.
  • REBOOT TO BOOTLOADER – Restarts the phone and boots directly into the Bootloader.
  • BOOT TO DOWNLOAD MODE – Boots the phone directly to Download mode.
  • BOOT TO RECOVERY MODE – Boots the phone directly to Recovery mode.
  • POWER DOWN – Turns the phone off.
The following options are usually available in Download mode:
  • SYSTEM INFO – Displays information about the phone hardware.
  • SHOW BARCODE – Displays key information such as IMEI and serial number.
  • REBOOT TO BOOTLOADER – Restarts the phone and boots directly into the Bootloader.
  • BOOT TO DOWNLOAD MODE – Boots the phone directly to Download mode.
  • REBOOT – Restarts the phone normally.
  • POWER DOWN – Turns the phone off.
  • FACTORY RESET – Factory resets the phone.
The following options are usually available in Recovery mode:
  • REBOOT SYSTEM NOW – Restarts the phone normally.
  • REBOOT TO BOOTLOADER – Restarts the phone and boots directly into the Bootloader.
  • APPLY UPDATE FROM ADB – Enables you to sideload firmware using your computer.
  • APPLY UPDATE FROM SD CARD – Enables you to sideload firmware from an SD card.
  • WIPE DATA/FACTORY RESET – Factory resets the phone.
  • WIPE CACHE PARTITION – Deletes most items such as temporary files and logs from the phone.
  • POWER OFF – Turns the phone off.
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