FLASHING.md still described flashing as for the previous firmware. The port
changed the partition table (NVS 24 KB -> 80 KB, app 0x10000 -> 0x20000), so a
board coming from the previous firmware needs its NVS range erased once and a
full flash, not app-flash; without the erase the BLE bond cannot be stored and
the phone pairs on every connection. Documented that, what the boot log and
the app show afterwards (credentials provisioned on first Connect, stale phone
pairings to forget), both ways back to the previous firmware (the backup image,
or commit 7285fa1 built with IDF 6.1), the production board's port (COM3,
UART bridge), the station-link names in the phone and bring-up sections, and
that the build is self-contained with obu-firmware/external/vanetza-idf.
Ashin Walpola
6e4d293c3a