I have a Cisco 2950 switch. It worked fine for a while until I rebooted the switch. Once I rebooted it tried initializing the flash but locked up once it got to the console. After doing some searching I found out the the flash image was bad and needed to be reloaded using xmodem. Used xmodem to try and reload the image from my hard drive but doing the process the switch stop responding and lock up. If I reboot the switch the LEDs lights stay on and the switch is locked up. If I wait for a few mins and try again I can get and start xmodem but the same thing happen again. The switch lockup doing the transfer process using xmodem. Any help will be helpful.