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7. If the Liebert LDM unit is detected, a confirmation window appears. Click Yes to continue and
proceed to Step 8.
If the Liebert LDM unit is NOT detected, an error message appears. Click OK to return to the
Upgrade Firmware window. Check to verify the following, then repeat Step 6:
• The correct COM Port is selected and the Baud Rate is 115200.
• A serial cable is properly connected to the unit (see 5.2.1 - LDM Setup Port Connection).
• The Liebert LDM unit is powered ON.
8. In the Open window, locate the firmware file named MAIN-xx.out (where xx is the current
version):
• Browse to the folder where the Flash files are located—the default folder is Flash.
• Select the file you want to download—MAIN-xx.out (where xx is the current version).
•Click the Open button.