Attach a terminal to the console port of the switch.
Use the following
Unplug the power cable from the Switch.
Power the switch and bring it to the switch: prompt:
For 2900XL, 3500XL, 2940, 2950, 2960, 2970, 3550, 3560, and 3750 series switches, do this:
Hold down the mode button located on the left side of the front panel, while you reconnect the power cable to the switch.
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2960, 2970
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Release the Mode button when the SYST LED blinks amber and then turns solid green. When you release the Mode button, the SYST LED blinks green.
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3560, 3750
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Release the Mode button after approximately 15 seconds when the SYST LED turns solid green. When you release the Mode button, the SYST LED blinks green.
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The system has been interrupted prior to initializing the flash file system to finish
loading the operating system software:
flash_init
load_helper
boot
switch:
Issue the flash_init command.
switch: flash_init Initializing Flash
Issue the load_helper command.
switch: load_helper switch:
Issue the dir flash: command.
Note: Make sure to type a colon ":" after the dir flash.
The switch file system is displayed:
switch: dir flash:
Type rename flash:config.text flash:config.old to rename the configuration file.
switch: rename flash:config.text flash:config.old
Issue the boot command to boot the system.
switch: boot
Enter "n" at the prompt to abort the initial configuration dialog.
At the switch prompt, type en to enter enable mode.
Switch>en Switch#
For password recovery
Type rename flash:config.old flash:config.text to rename the configuration file with its original name.
Switch#rename flash:config.old flash:config.text Destination filename [config.text]
Copy the configuration file into memory.
Switch#copy flash:config.text system:running-config Destination filename [running-config]?
The configuration file is now reloaded
Overwrite the current passwords that you do not know. Choose a strong password with at least one capital letter, one number, and one special character.
Note: Overwrite the passwords which are necessary. You need not overwrite all of the mentioned passwords.
Sw1# conf t !--- To overwrite existing secret password Sw1(config)#enable secret !--- To overwrite existing enable password Sw1(config)#enable password !--- To overwrite existing vty password Sw1(config)#line vty 0 15 Sw1(config-line)#password Sw1(config-line)#login !--- To overwrite existing console password Sw1(config-line)#line con 0 Sw1(config-line)#password
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Write the running configuration to the configuration file with the write memory command.
Sw1#write memory Building configuration... [OK] Sw1#
For Factory reset:
don’t give below command for factory reset
Switch#copy flash:config.text system:running-config
do copy running config to flash,
Switch#copy running-config flash:
Destination filename [running-config]?
Building configuration...
Switch#copy running-config startup-config
Destination filename [startup-config]?
Building configuration...
