Cisco 3602 AP Continuously Rebooting due to Corrupt IOS Image

Tayyab831 — Tue, 10 Sep 2024 15:00:46 GMT

Dear Community Members,

I am experiencing a problem with my Cisco 3602 AP, which is continuously rebooting. It appears that the IOS image is corrupted. I would like to interrupt the boot sequence and enter ROMMON mode to delete the problematic image and install a new one. My goal is to convert this AP into an autonomous AP.

Could you please advise on how to interrupt the boot sequence and install the new image? I have tried the following methods, but none have worked:

Mode button
Ctrl + C
Esc key

Below are the AP CLI outputs for reference:

IOS Bootloader - Starting system.
flash is writable
FLASH CHIP: Spansion Mirrorbit (0001)
Xmodem file system is available.
flashfs[0]: 695 files, 26 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 31997952
flashfs[0]: Bytes used: 19738624
flashfs[0]: Bytes available: 12259328
flashfs[0]: flashfs fsck took 19 seconds.
Reading cookie from SEEPROM
Base Ethernet MAC address: c4:64:13:c0:79:a1
Ethernet speed is 1000 Mb - FULL Duplex
Loading "flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-mx.153-3.JA12"...#########################

File "flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-mx.153-3.JA12" uncompressed and installed, entry point: 0x2003000
executing...

Secondary Bootloader - Starting system.
Tide MB - 32MB of flash
Xmodem file system is available.
flashfs[0]: 695 files, 26 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 31997952
flashfs[0]: Bytes used: 19738624
flashfs[0]: Bytes available: 12259328
flashfs[0]: flashfs fsck took 9 seconds.
flashfs[1]: 0 files, 1 directories
flashfs[1]: 0 orphaned files, 0 orphaned directories
flashfs[1]: Total bytes: 12257280
flashfs[1]: Bytes used: 1024
flashfs[1]: Bytes available: 12256256
flashfs[1]: flashfs fsck took 1 seconds.
Base Ethernet MAC address: c4:64:13:c0:79:a1

2600/3600 AP, PID: 'AIR-CAP3602I-A-K9 '. Checking for BL upgrade...
BL: C3600 Boot Loader (AP3G2-BOOT-M) LoaderVersion 12.4(23)JY, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Compiled Thu 03-Oct-13 03:35 by sdcunha

BL Build year: 13
Boot CMD: 'boot flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12;flash:/ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12'
Loading "flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12"...################################################
File "flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12" uncompressed and installed, entry point: 0x1003000
executing...

Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706

Cisco IOS Software, C3600 Software (AP3G2-K9W8-M), Version 15.3(3)JA12, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2017 by Cisco Systems, Inc.
Compiled Fri 20-Oct-17 20:51 by prod_rel_team

Tide MB - 32MB of flash
Initializing flashfs...

flashfs[2]: 695 files, 26 directories
flashfs[2]: 0 orphaned files, 0 orphaned directories
flashfs[2]: Total bytes: 31739904
flashfs[2]: Bytes used: 19738624
flashfs[2]: Bytes available: 12001280
flashfs[2]: flashfs fsck took 10 seconds.
flashfs[2]: Initialization complete.
flashfs[4]: 0 files, 1 directories
flashfs[4]: 0 orphaned files, 0 orphaned directories
flashfs[4]: Total bytes: 11999232
flashfs[4]: Bytes used: 1024
flashfs[4]: Bytes available: 11998208
flashfs[4]: flashfs fsck took 1 seconds.
flashfs[4]: Initialization complete.
Copying radio files from flash: to ram:
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12E2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12B2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12V2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12X2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12Y2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12R2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12Q2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12C2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12F2.bin (No such file or directory)
%Error opening flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12U2.bin (No such file or directory)
Uncompressing radio files...
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA128004.img
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12E5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12B5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12V5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12X5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12Y5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12R5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12Q5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12C5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12F5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA12U5.bin
File not found: flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-xx.153-3.JA128006.img
...done Initializing flashfs.

Radio0 present 8764 8000 0 A8000000 A8010000 0
*Mar 1 00:00:14.835: %SOAP_FIPS-2-SELF_TEST_IOS_SUCCESS: IOS crypto FIPS self test passed (15)
*Mar 1 00:00:15.415: %DOT11-4-LOADING_RADIO: Interface Dot11Radio0, loading the radio firmware (ram:)
*Mar 1 00:00:15.419: %DOT11-2-RESET_RADIO: Restarting Radio interface Dot11Radio0 due to get code failed: firmware file not found
*Mar 1 00:00:15.451: %SYS-5-RELOAD: Reload requested by Init. Reload Reason:
Radio FW image download failed ....
IOS Bootloader - Starting system.
flash is writable
FLASH CHIP: Spansion Mirrorbit (0001)
Xmodem file system is available.
flashfs[0]: 695 files, 26 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 31997952
flashfs[0]: Bytes used: 19738624
flashfs[0]: Bytes available: 12259328
flashfs[0]: flashfs fsck took 19 seconds.
Reading cookie from SEEPROM
Base Ethernet MAC address: c4:64:13:c0:79:a1
Ethernet speed is 1000 Mb - FULL Duplex
Loading "flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-mx.153-3.JA12"...#########################

File "flash:ap3g2-k9w8-mx.153-3.JA12/ap3g2-k9w8-mx.153-3.JA12" uncompressed and installed, entry point: 0x2003000
executing...

Thank you for your support

Re: Cisco 3602 AP Continuously Rebooting due to Corrupt IOS Image

Mark Elsen — Tue, 10 Sep 2024 16:04:35 GMT

- Ref : https://community.cisco.com/t5/wireless-mobility-knowledge-base/lwapp-mode-to-autonomous-mode-conversion/ta-p/3122786
Does executing Step 8 and the rest following make any difference ?

Re: Cisco 3602 AP Continuously Rebooting due to Corrupt IOS Image

Leo Laohoo — Tue, 10 Sep 2024 22:32:21 GMT

In ROMMON, force the AP to boot the RCV firmware. If not possible, format the flash of the AP and upload the RCV file using xModem. The latest CAPWAP image compatible for the 2600/3600 is 17.12.4 and can be found HERE.

Re: Cisco 3602 AP Continuously Rebooting due to Corrupt IOS Image

Tayyab831 — Wed, 11 Sep 2024 13:01:59 GMT

Dear Marce 1000,

Thank you for your support. The issue has been resolved by following step
8. The problem was actually with the mode button—it wasn't being pressed
properly. I opened the back cover of the AP, pressed the button correctly,
and successfully interrupted the boot sequence.

Thank you so much.

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