User manual

CS1784 User Manual

Upgrade Failed

Shorting the Mainboard Jumper

If the Upgrade Succeeded screen doesn’t appear, it means that the upgrade

failed to complete successfully, in which case you should do the following:

1. Power off the CS1784 and remove its housing.

2. Using a jumper cap, short the jumper on the mainboard labeled J17. The

diagram below indicates the jumper location on the CS1784 board:

3. Power on the CS1784. It will now work with the factory default firmware.

4. Do the firmware upgrade procedure again.

5. After the upgrade procedure completes, power off the switch, remove the

jumper cap from J17, close the housing, and power the CS1784 on again.