How to factory reset the DWS-4026 from the CLI?

Step 1: Connect the serial cable to the switch and connect using a terminal application (ex: hyperterminal, Teraterm...etc.)
 
Step 2: Reboot the switch and select 2 to start the boot menu.

Step 3: Select number 10 to (Restore configuration to factory defaults (delete config files) and number one to start operation code than click on Enter.

CPU Card ID:   0xa28245
Boot Menu Version (Date):  14 MAR 2008
Select an option. If no selection in 10 seconds then
operational code will start.

1 - Start operational code.
2 - Start Boot Menu.
Select (1, 2):2

 

Boot Menu Version (Date):  14 MAR 2008

Options available
1  - Start operational code
2  - Change baud rate
3  - Retrieve event log using XMODEM
4  - Load new operational code using XMODEM
5  - Display operational code vital product data
6  - Run flash diagnostics
7  - Update boot code
8  - Delete operational code
9  - Reset the system
10 - Restore configuration to factory defaults (delete config files)
11 - Activate Backup Image
[Boot Menu] 10
[Boot Menu] 1


Operational Code Date: Tue Aug 17 01:16:14 2010
Uncompressing.....

                       50%                     100%
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Attaching interface lo0...done

Adding 41648 symbols for standalone.

(Unit 1)>

Step 4) Login to the DWS both Telnet or WEB, using the default ID "admin" without Password.