3Com 4210G manual Required, ROM file effective

Task	Remarks
Restart the switch to make the updated Boot	Required
ROM file effective

1)Enter the Boot ROM update menu on the switch

Enter the Boot ROM menu, and then enter 6 after the system displays “Enter your choice(0-9):” to enter the Boot ROM update menu.

Bootrom update menu:

1.Set TFTP protocol parameter

2.Set FTP protocol parameter

3.Set XMODEM protocol parameter

0.Return to boot menu

Enter your choice(0-3):

2)Configure the switch to download files using XMODEM

Enter 3 in the above menu to load the Boot ROM and host software using XMODEM protocol. The system displays the following download baud rate setting menu:

Please select your download baudrate:

1.9600

2.* 19200

3.38400

4.57600

5.115200

0.Return

Enter your choice (0-5):

3)Set the download rate of the console port on the switch

Select an appropriate download rate. For example, if you select 115200 bps, that is, enter 5, the following information is displayed:

Download baudrate is 115200 bps

Please change the terminal's baudrate to 115200 bps and select XMODEM protocol

Press enter key when ready

Now that the console communication baud rate of the switch has been changed to 115200 bps while that of the terminal is still 19200 bps, the two sides cannot communicate with each other. According to the prompt, you need to change the baud rate of the terminal to 115200 bps.

z

z

It is recommended to set the download rate to 115200 bps since the software files are generally very large.

If you have chosen 19200 bps, you do not need to modify the HyperTerminal’s baud rate, and therefore you can skip step 4) below and proceed to step 5) directly.

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