Cisco 3750 - Missing .bin & ROMmon display bug/blank screen

[Switcher]

Hi all,

As say in the title i've got a big issue, switch is new, after a big mistake i've reload the switch but forget to put a new .bin file in flash, and now i can't even xmodem the file cause the ROMmon either display me a blank screen or missing letters and doesn't seems to allow me to send a single command...

Here's my "config" :

Ubuntu 18.04, tried with minicom/screen 9600 8N1

Switch is a 3750 12 fiber ports

Thanks by advance to the person who can save me !

[balaji.bandi · Accepted solution]

its easy if you have windows 10 PC to get recover fast :

below guide :

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/41845-192.html

If you have Linux you need to fix the terminal connection first before you can proceed further.

https://linuxconfig.org/connect-your-ubuntu-linux-machine-to-cisco-serial-console

[Switcher]

I'm gonna try with a Windows10 thanks !

Edit : Transfer is OK i'll tell you if it's good in 3hours ! ;)

[Switcher]

It's an 3750G-12S

[balaji.bandi]

Sure it take some time depends on xmodem settings, you can change baud ratte - but if you are intiated already - keep us update and results.

[Switcher]

I've stay 9600 speed cause i doesn't want to let the time to some bug to show up, but everything went good, .bin file has been transfered successfully and switch is now working great again, thanks again !

[balaji.bandi]

Glad and all sorted in the end. happy to hear back :)

[Leo Laohoo]

What is the exact model of the switch? Is this a 3750G-12S or a 3750X?