
Do not power down the ReadyNAS system prematurely during write operations.To avoid permanent damage to your ReadyNAS system, observe the following precautions: Using the USB Recovery Tool incorrectly can cause irreparable damage to the ReadyNAS system. The USB Recovery Tool attempts to overwrite existing firmware data on the ReadyNAS system. Read through all of the steps and make sure you feel comfortable with the process before proceeding. This tool must only be used at the recommendation of NETGEAR Technical Support. If you need to perform USB recovery on an x86 ReadyNAS system, you must use the USB Recovery Tool. Note: Manually created USB recovery drives only work on ARM-based ReadyNAS systems. The USB Recovery Tool only works on Windows PCs, but if you need to manually create a recovery USB drive on an ARM-based computer system, jump to To create a USB recovery drive for an ARM-based ReadyNAS system.
MOUNT DDR RECOVERY DATA ON WINDOWS UPGRADE
When the ReadyNAS system reboots into normal mode, it might proceed with trying to upgrade your system with the poorly copied firmware image, fail, and still try to start up. Generally, firmware upgrade failure happens because the new ReadyNAS firmware was not fully written to your ReadyNAS system due to something unexpected during upgrade. Only use the USB Recovery Tool when NETGEAR Technical Support recommends it. WARNING: If you use the USB Recovery Tool incorrectly or if you attempt to use the USB Recovery Tool to downgrade to an older firmware version, you might cause permanent damage to your ReadyNAS system. You can use the USB Recovery Tool to reload current firmware onto your ReadyNAS storage system for recovery purposes only. If a firmware upgrade fails, your ReadyNAS storage system might be unable to boot.

If you cannot access your ReadyNAS storage system but it is currently able to boot, visit ReadyNAS Not Accessible FAQ
