R Series Update Program V2 ((free)) Jun 2026

| Error Code | Message | Probable Cause | Solution | |------------|---------|----------------|----------| | | Signature mismatch on manifest | Corrupted download or repository tampering | Delete local cache ( ~/.rsupv2/cache/ ) and re-download. | | E-718 | Insufficient flash reserve | The device’s backup partition is too small for v2 delta | Perform a full image update (disable delta mode in settings) or free up factory reserved blocks. | | E-922 | Bootloader version < 2.0 | Legacy bootloader incompatible with atomic updates | Use the original R Series Update Program v1 to flash a bootloader update first. | | E-105 | Timeout during reboot detection | Network policy blocks ICMP or device is stuck | Manually power-cycle the device. Check console output via serial TTL. | | W-304 | Rollback triggered after 3 failed boots | New firmware crashes during startup | Automatic rollback succeeded. Check device logs for driver incompatibility. |

Warning : Do not power off or disconnect the cable during this window, as it can brick the device. r series update program v2