How to factory reset 3COM switch


Forgot your login password and want to do a password recovery? Factory reset to default!

In order to restore your 3COM superstack switch you will need the following:

  1. Cisco Console Cable
  2. Putty

1. Connect to the console port of the switch

Make sure to connect using the following settings 19200, 8, 1, N

2. Press Ctrl-B to enter the boot menu

Starting......

******************************************************************
* *
* SuperStack 4 Switch 5500G-EI SFP 24-Port BOOTROM, Version 5.00 *
* *
******************************************************************

Copyright (c) 2004-2007 3Com Corporation and its licensors.
Creation date : Aug 23 2007, 14:11:50
CPU Clock Speed : 400MHz
BUS Clock Speed : 33MHz
Memory Size : 128MB
Mac Address : 00186e527c00

Press Ctrl-B to enter Boot Menu... 1

3. Enter 7 to skip current configuration file

When prompt for password just hit enter.

password: 

  BOOT  MENU

1. Download application file to flash
2. Select application file to boot
3. Display all files in flash
4. Delete file from flash
5. Modify bootrom password
6. Enter bootrom upgrade menu
7. Skip current configuration file
8. Set bootrom password recovery
9. Set switch startup mode
0. Reboot

Enter your choice(0-9): 7

The current setting will boot with current configuration file when rebooted.
Are you sure you want to skip the current configuration file when rebooting? Yes or No(Y/N)y

Setting......done!

Hit Y to continue

4. Enter 0 to reboot

Enter your choice(0-9): 0

System is rebooting...

5. Once booted, delete the 3comoscfg.cfg file

You can either backup the config file first then delete, or delete it.

Directory of unit1>flash:/

   1       -rw-   5380003  Dec 16 2007 22:34:16   s4c03_03_00s168.app
   2 (*)   -rw-   5392136  Oct 19 2008 12:38:29   s4c03_03_01s168.app
   3       -rw-      7951  Jun 08 2006 13:42:59   3comoscfg.def
   4       -rw-      1421  Dec 31 2004 16:01:29   3comoscfg.cfg
   5 (*)   -rw-    958433  Oct 19 2008 12:56:46   s4i05_03.web
   6 (b)   -rw-     11479  Jan 07 2005 23:23:18   backup.cfg
   7       -rw-    337936  Dec 16 2007 22:34:57   s4f05_00.btm
   8       -rw-    956704  Dec 16 2007 23:06:16   s4i05_00.web

15367 KB total (2598 KB free)

(*) -with main attribute   (b) -with backup attribute
(*b) -with both main and backup attribute

delete 3comoscfg.cfg 
Delete unit1>flash:/3comoscfg.cfg?[Y/N]:y
.......
%Delete file unit1>flash:/3comoscfg.cfg...Done.

6. Reboot and you’re done!

Related Posts with Thumbnails

About the Author

Alfred Tong
Author and owner of this blog. A Networking enthusiast, full time networking and systems Engineer. Generally curious about all things IT.Certifications: GIAC GSEC, CCNP-S, CCNP, CCSP, CCDP, CCNA, RHCE, JNCIA - FWV