Recovery Mode - Safran WR-ZEN Series User Manual

The first step of this method is to upload the corresponding firmware to the root
folder of the device using SCP:
Then login to the device with SSH:
ssh root@<deviceip>
And finally run the wrz_flashfw tool to handle updates with the reboot flag if no
errors were detected:
If the uploaded version is lower than 5.1, a factory reset is mandatory. If this is the
case, the following message will prompt after executing the previous command:
8.3

Recovery Mode

If an error has occurred (e.g., power down, wrong firmware) during a firmware
update procedure the device might not be able to boot from the SD card and will
enter itself into a recovery mode.
This recovery mode consists of a minimal Linux stored into internal memory of
the equipment that allows to:
Once the device has been booted in recovery mode, it should apply the network
configuration previously saved in the .config file. However, it might occasionally
be impossible to recover the network configuration. In those cases, the device
CHAPTER •
8 WR-ZEN Series User Manual Rev. v5.1
scp wr-zynq-os-v3.2-RC1-20210325-ZENv3.x_binaries.tar
root@<deviceip>:~
root@be-dist8-684:~# wrz_flashfw -r ~/ wr-zynq-os-v3.2-RC1-
20210325-ZENv3.x_binaries.tar
Warning: The version to be flashed is older than the cur-
rent one, therefore the default password and user are going
to be set. The device will be automatically rebooted...
This will reset the device in its factory version and all
your modifications will be lost
Do you want to continue? [y/N] ?
Note: Please check wrz_flashfw -h to get more information about
the various arguments accepted by this tool.
Reflash the device with another firmware.
Recover configuration (if possible).
Clean/format SD remotely.
8.3 Recovery Mode
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