cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1251
Views
2
Helpful
2
Replies

Corrupt U-Boot

Hello,

I'm having an issue with another 9120AXI-B access point.

What's Happening:

  • Bought AP from eBay
  • The AP is stuck in the u-boot
    • I cannot get to the AP login
    • I'm stuck at the ">u-boot" prompt
  • I found these two documents explaining how the AP can get caught in a boot loop and how to resolve the issue
    • Recover from a Boot Loop Caused by Image Corruption on Wave 2 and 11ax Access Points (CSCvx32806)
    • Repair C9120/C9115 Access Points from U-boot
  • I followed the recovery steps, however I keep ending up back at the ">u-boot" prompt

Any suggestions on where to move from here? I'm pretty stuck.

2 Replies 2

Saikat Nandy
Cisco Employee
Cisco Employee

Hey Brad, 

This is the only possible way that I can think off to recover the AP - https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9120axi-access-point/217537-repairing-c9120-c9115-access-points-from.html
If this does not work, then I think only option left would be replace the HW. Since you purchased it from e-bay, you can't RMA as well. 

Rich R
VIP
VIP

Like @Saikat Nandy says if the Repair C9120/C9115 Access Points from U-boot process doesn't work then you have faulty hardware which must be replaced.  Return to eBay seller for a refund.

------------------------------
Please click Helpful if this post helped you and Accept as Solution (drop down menu at top right of this reply) if this answered your query.
------------------------------
TAC recommended codes for AireOS WLC's   and   TAC recommended codes for 9800 WLC's
Best Practices for AireOS WLC's,   Best Practices for 9800 WLC's   and   Cisco Wireless compatibility matrix
Check your 9800 WLC config with Wireless Config Analyzer using "show tech wireless" output or "config paging disable" then "show run-config" output on AireOS and use Wireless Debug Analyzer to analyze your WLC client debugs
Field Notice: FN63942 APs and WLCs Fail to Create CAPWAP Connections Due to Certificate Expiration
Field Notice: FN72424 Later Versions of WiFi 6 APs Fail to Join WLC - Software Upgrade Required
Field Notice: FN72524 IOS APs stuck in downloading state after 4 Dec 2022 due to Certificate Expired
- Fixed in 8.10.196.0, latest 9800 releases, 8.5.182.12 (8.5.182.13 for 3504) and 8.5.182.109 (IRCM, 8.5.182.111 for 3504)
Field Notice: FN70479 AP Fails to Join or Joins with 1 Radio due to Country Mismatch, RMA needed
Field Notice: FN74383 APs Running 17.12.4/5/6/6a May Run Out of Flash Space Preventing Upgrades
How to avoid boot loop due to corrupted image on Wave 2 and Catalyst 11ax Access Points (CSCvx32806)
Field Notice: FN74035 - Wave2 APs DFS May Not Detect Radar After Channel Availability Check Time
Leo's list of bugs affecting 2800/3800/4800/1560 APs
Default AP console baud rate from 17.12.x is 115200 - introduced by CSCwe88390
Review Cisco Networking for a $25 gift card