Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Xmodem Hangup


I have just finished uploading "xmodemed" a new ios image to a router (3640) and instead of restarting thereafter so that i may change the console and baud rates, the system went into the following output:

rommon 2 > reset

System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

Copyright (c) 1999 by cisco Systems, Inc.

C3600 processor with 131072 Kbytes of main memory

Main memory is configured to 64 bit mode with parity disabled

rommon 1 > xmodem -c c3640-ik9o3-mz.124-13b

Do not start the sending program yet...

File size Checksum File name

32585912 bytes (0x1f138b8) 0xbb3c c3640-jk9o3s-mz.124-10b.bin

WARNING: All existing data in flash will be lost!

Invoke this application only for disaster recovery.

Do you wish to continue? y/n [n]: y

Ready to receive file c3640-ik9o3-mz.124-13b ...

Erasing flash at 0x31fc0000

program flash location 0x300e0000

I just hope someone out there can decipher what this output means?

Thank you

New Member

Re: Xmodem Hangup

Just check can your router load now with the new IOS ??? if yes then its fine or else just let me know what ouput you are getting now ??? can you tell me how much RAM you have ?

New Member

Re: Xmodem Hangup


The problem is that i can not even get into the privilege or global configuration mode. The baud rate remains 115200 8 N 1, which always result back to rommon> mode.

Any changes to the console/baud rate to 9600 8 N 1, always produced unwanted characters on the CLI.

Hope with this explanation someone could help me further?


New Member

Re: Xmodem Hangup

did you boot the router with the new IOS through boot command......? Use the 12th step n do let me know.

New Member

Re: Xmodem Hangup

Hello, Thanks for the reply. Unfortunately the link you sent talks about 3560 catalyst while my problem is on 3640 router.

Hope you can still help me further?


New Member

Re: Xmodem Hangup

New Member

Re: Xmodem Hangup


Were you ever able to resolve this? I've had the same issue and thought I could get some insight from you.