Aironet 1852i not booting

[sasha]

Hi. One of my AIR-AP1852I stopped working, and it displays just a few messages on the console:

U-Boot 2012.07 (btldr release 38) (Oct 29 2019 - 06:39:45)

This product contains some software licensed under the
"GNU General Public License, version 2" provided with
ABSOLUTELY NO WARRANTY under the terms of
"GNU General Public License, version 2", available here:
http://www.gnu.org/licenses/old-licenses/gpl-2.0.html

DRAM: 1 GiB
NAND (ONFI): Detected MICRON MT29F2G08ABBEAH4 [256 MiB]
SF: Detected Macronix MX25U3235F [4 MiB]
MFG data loaded
Scanning shenv data blocks
Total valid parts=4
Active shenv part[1:1], write_counter=4
PCI0 Link Intialized

And that's it, after these messages it waits indefinitely and ignores keystrokes. Any ideas? Thanks and best regards.

[Kasun Bandara]

seems like AP is faulty. better open a TAC at support.cisco.com

[Leo Laohoo]

I am not going to bother and I am not wasting anybody else's time.  RMA the APs. 

@Rich R what say you?   

[Rich R]

Agreed - RMA the dead AP.

[marce1000]

                - Looks faulty AP as mentioned by others , measure of 'last hope' could be factory reset , 

 M.

[Do Tien Dung]

Try switching it back to Mobility Express mode
video tutorials:
https://www.youtube.com/watch?v=zo91OsLpwwY

[Rich R]

@Do Tien Dung you've posted this twice on 2 different threads!  How do you think converting an AP to Mobility Express will repair failed hardware?  It will not!  The AP will still be faulty and will still require RMA.  Changing the software it runs won't make any difference to that!