Cisco 2950 l2 switch console problen

Question

Hi all, I got 2 old Cisco 2950 catalyst switch yesterday. But when I try to open console of both switches I am getting only blank terminal. I tried to open with putty and scureCRT, I tried another console cable, tried on another PC, but no luck. 
I think previous owners might have disabled console. So is there any other way to take console or delete start-up conf file??

Answer 1

 Hello,
I don't have a 2950 around to test, but as far is I know disabling the console is achieved issuing the "no exec" command on the console line, so it is a command in the start-up config. Therefore booting the switch in the rescue image should not take into account that command, so the console should be available in that mode. Have you tried that? To do so hold down the MODE button located on the left side of the front panel, while you reconnect the power cable to the switch. Release the Mode button after approximately 5 seconds when the Status (STAT) LED goes out. When you release the Mode button, the SYST LED blinks amber. 
Here is the rest of the procedure:
http://www.cisco.com/c/en/us/support/docs/switches/catalyst-2950-series-switches/12040-pswdrec-2900xl.html 
PS:  I presume you are using the correct COM port and terminal settings, however I mention them bellow just to make sure:
Bits per second (baud): 9600
Data bits: 8
Parity: None
Stop bits: 1
Flow Control: Xon/Xoff  (or none, in some documents)
You can check if you are using the correct COM port in System Tools/Device Management if you are using a Windows device. 
If this doesn't work check if the flash card can be removed (not sure on that old model), perhaps you can use it in other device and delete the startup config.