How to flash firmware from uboot? Model C9105AXI-D

[arun321]

The device does not complete the boot process. It hangs after autoboot and shows CPU reset.

Only uboot menu is working fine. Is there any way to flash firmware from uboot? It seems both partitions are corrupted.

Thanks.

[Flavio Miranda]

@arun321 

This link is for 9120 but worth try with your model

https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9120axi-access-point/217537-repairing-c9120-c9115-access-points-from.html

[Rich R]

The download page also include 9105 images @Flavio Miranda 

So yes, you can use that process to re-flash the 9105 from u-boot.

Note that restores the AP to 8.10.130.0 image so I usually recommend upgrading:
8.10.130.0 -> 8.10.196.0 (15.3.3-JK11) then
8.10.196.0 -> 17.6.8 (15.3.3-JPK9) then
17.6.8 -> current version like 17.15.2 (15.3.3-JPT1)
Trying to upgrade direct from 8.10.130.0 to latest usually results in failure.

[jagan.chowdam]

You can also check the following link - https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/220443-how-to-avoid-boot-loop-due-to-corrupted.html

Jagan Chowdam

/**Pls rate useful responses**/

[arun321]

Official documentation is lacking some important steps. Anyhow, I fixed it with help from other posts.

[Rich R]

It's worked fine for me when I've used it before @arun321 but if you think there's something missing you should share the details here for others, and submit feedback on the article detailing what you think needs updating.