If you are booting OOWOW as embedded service New generation boards you need to attach external USB disk or SD card to store the backup image, preferably formatted to ExFAT.

If you are booting OOWOW from special oowow disks SD card or USB drive with any of the boards, you can store a backup on the disk itself or on an secondary attached USB disk.

1. Navigate to the backup menu: OOWOW main menu ⇒ Dump image from eMMC
2. Select the backup location:
   • on OOWOW disk itself: location > ../ > dumps > okay
   • on USB disk: location > ../ > USB-sdXX…. > okay
   • if OOWOW was booted from special oowow disk backup location will selected automaticly
3. Start backup: Start, and wait for few minutes to finish the backup and exit.

1. Navigate to the restore menu: OOWOW main menu ⇒ Write image to eMMC
2. Select the backup image location:
   • on OOWOW disk itself: vimx-xxxxxx.xxxxxx-…..img.zst > okay
   • on USB disk: ../ > USB-sdb1…. > vimx-xxxxxx.xxxxxx-…..img.zst > okay
   • if OOWOW was booted from special oowow disk backup location will selected automaticly
3. Restore the image: Write, and wait for few minutes to write the image and exit.