Tried uploading an ath79 sysupgrade image from luci and command line for wr842nd/v1 and the upgrade aborted. Tried prebuilt image from snapshot and from self built image using imagebuilder and got same result.
"The uploaded image file does not contain a supported format. Make sure that you choose the generic image format for your platform."
Have used the prebuilt snapshot ath79 image for wr703 with no reported errors.
Am reluctant to try and force a sysupgrade on the wr842 device.
Tried searching the forum but haven't found anything that would suggest a way forward. Any suggestions on where to look/proceed?
edit: fixed typo, target device is wr842n/v1