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Recovery & upgrade

Please read this section carefully before performing an Android vendor firmware update/upgrade

If CoreELEC co-exists with Android on the same eMMc, it is required to remove the CoreELEC installation from internal eMMc prior to updating/upgrading the vendor Android firmware, otherwise the OTA firmware update/upgrade will fail!

Restoring the vendor firmware results in complete loss of the CoreELEC installation on internal eMMc. Team CoreELEC recommends to create a backup first.

1. Dual boot mode installation

A. Booted from SD card or USB flash drive

  1. Use option [6] to create a backup of the CoreELEC installation on eMMc.
  2. Once the backup is finished, use option [7] to remove the CoreELEC installation from eMMc.
  3. The device is now ready to be upgraded by an Android image or a OTA update.
  4. After the Android upgrade/update the device bootloader environment has been reset to defaults. Therefore CoreELEC will no longer start from internal eMMc, SD Card or USB Flash Drive. Boot once from a SD card or USB flash drive with CoreELEC on it by using one of the commonly used methods like pushing and holding the reset button while powering on the device.
  5. After one successful boot of CoreELEC from external media, the backup created earlier can be used to (re)-install CoreELEC dual mode to eMMc by using option [2]

B. Booted from current CoreELEC installation on eMMc

  1. Use option [1] to make a copy of the internal CoreELEC installation to an insert SD Card or USB Flash Drive.
  2. When the copy process is finished, reboot the device to boot CoreELEC from an SD Card or USB Flash Drive, and proceed in the left column with step 2. of 1A. Booted from SD card or USB flash drive.

2. Single boot mode installation

A. Booted from SD card or USB flash drive

  1. Use option [3] to create a backup of the internal CoreELEC installation.
  2. The device is now ready for recovery by a vendor firmware image.
  3. After the Android recovery has completed, the backup created earlier can be used to (re)install CoreELEC in single mode to eMMc by using option [4].

B. Booted from current CoreELEC installation on eMMc

  1. Use option [1] to create a copy of the internal CoreELEC installation to an insert SD Card or USB Flash Drive.
  2. When the copy is finished reboot the device to boot CoreELEC from SD Card or USB Flash Drive, and proceed in the left column with step 2. of 2A. Booted from SD card or USB flash drive.
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