Uploading new firmware over a serial console port

You can recover firmware through the serial console port on your Opengear device. The example below shows how to do this from a Windows PC using HyperTerminal and Kermit:

• Download the latest firmware image (such as cm41xx.flash)from ftp://ftp.opengear.com or and save in a directory on your PC
• Serially connect the unit to the desired com port (COMM PORT 1, 2) on the PC (or using a USB-COM port converter)  
• Open the HyperTerminal program 
• Enter a Name for the new connection to the Opengear device, select an icon and click OK 
• Leave every field as is except for the 'connection using' field; select the port on your PC that is serially connected to the device
• Within the com port settings, set the following:
  • Bits per second: 115200
  • Data bits: 8
  • Parity: None
  • Stop bits: 1
  • Flow control: None
• You will now need to reset the Opengear device:
  • The Hyper Terminal screen should be blank
  • With the thin strong object, press and hold the erase button on the unit in while simultaneously turning the unit off with the switch at the rear.
  • The Opengear device lights should be off
  • Repeat the above step while turning on the device
  • Text should flow onto the HyperTerminal screen as shown below
  
• Press any key to abort U boot auto-booting, or hit CTRL + C after the brief window where "any key" will suffice
• In the boot command type loadb 0x0400000. The screen should now read: 
  "## Ready for binary (kermit) download to 0x00400000 at 115200 bps..."
• Click on the top menu 'Transfer' then 'Send File'. In Filename - click browse and navigate to the file location ofcm41xx.flash. In Protocol - select Kermit from the dropdown menu
• Click 'Send'. The file will then send and will take around half an hour to complete
• In the command line type gofsk 0x0400000 to complete the recovery