If for some reason there is a problem with the firmware update, some newer firmwares now have an alternative way to update the firmware. With this alternative method a downgrade to older versions is possible too. We recommend downloading a backup of the configuration before attempting to flash the firmware.
The tool is contained in the 20.05, 20.06, 21.02 and 23.01 firmware branches, introduced with following versions:
20.05.05-rc12
20.06.01-rc01
21.02.03-rc23
23.01.01-rc44
To use this firmware flash tool, you need a firmware version equal or higher than the ones listed above.
For accessing the flash-tool you have to reboot in update mode.
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