Google is amazing but you found password recovery, not IOS.
1st question is that if you got command prompt "Switch:" and you typed commands flash_init and boot, if switch booted normally or not.
If switch booted normally then follow manual how to turn off manual boot on link in my first post.
Otherwise you will need IOS recovery.
At first you will need to have IOS (file with appendix .bin or something like that) for your switch.You will also need application which supports xmodem file transfer (putty doesn´t have it, but MS Hyperterminal has it - it is part of MS Windows XP).
Then if you have "Switch:" prompt:
(you can type:
switch:flash_init
and
switch:format flash:
to erase all data in flash)
1. To speed up whole process it is recommended to increase console speed with command:
switch:set BAUD 115200
After this command you will lose console connection. You must end application (putty, Hyperterminal) and start it again with parameters speed 115200/8 data bit/1 stop bit/no HW controll/no parity
2. Then type command:
switch:copy xmodem: flash:name_of_your_ios.bin
3. In Hyperterminal click on menu "Transfer" and select "Send File". Select protocol "Xmodem" and file - your IOS for switch.
4. Click "Send" to send file
5. (optional) Go to kitchen and make a cup of coffee (because transfer of file via xmodem takes a long time)
6. Type command (to boot your new IOS):
switch: boot flash:name_of_your_ios.bin
7. You can return back console speed to 9600 baud with command:
switch:set BAUD 9600
or
switch:unset BAUD
you lose console connection and you must reconnect with correct speed. This reverts settings from step 1.
You needn´t do step 1 and 7 but whole process takes very long time.
