I've an HomeHub 5a running an old LEDE build - Reboot (SNAPSHOT, r3900-399d5cf) - that I want to reset. I originally used this snapshot link to install (around this time last year):
firstboot per Soft Factory Reset returns
MTD partition 'rootfs_data' not found. Presumably this is an different file system.
How can I reset this? Note, pressing down the physical reset button doesn't work.