Recovering from a Flash-Bypassing Hot Update Fault

You can add the bypass_flash option to the updatefw command of hinicadm3 to implement the flash-bypassing hot update capability. This capability is recommended for development and debugging. It should be noted that the original firmware will be loaded after a power cycle, and the firmware updated with the bypass_flash option will become invalid.

1. Perform a flash-bypassing hot update.

   hinicadm3 updatefw -i hinic0 -f {NPU firmware} -a hot -t bypass_flash

   If information similar to the following is displayed, the update is successful:

   [root@localhost bypass_flash]# hinicadm3 updatefw -i hinic0 -f Hinic3_flash.bin -a hot -t bypass_flash
   Version check succeed.
   The running version can be hot upgraded to the target version.
   Please do not remove driver or network device.
   Loading...
   Firmware update start: 2025-04-27 15:30:36
   [>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>] [100%][\]
   Firmware update finish: 2025-04-27 15:30:53
   Firmware update time used: 17s
   Loading firmware image succeed.
   Do not operate the device during the hot upgrade.
   NPU firmware (bypass flash) is activing. Please waiting...
   Set update hot active successful

2. If a fault occurs after the update, power cycle the device to restore the original firmware.