I've forgot my password and after googling I've found that in recovery mode I can reset my account. Connected to Switch using console port (VT100+ Keyboard compatible) and pressed Shift+6. I accessed recovery mode successfully. using the below command I reset (deleted all accounts as it show empty account by running show account)
#reset account
After rebooting I cannot access using empty username and password! What am I doing wrong ?
DES-3200-10 Fast Ethernet Switch
Command Line Interface
Firmware: Build 4.38.B012
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Username:
User Access Verification
Username:
User Access Verification
Username:admin
Password:
Fail!
Password: