You must apply the 1.1-edge update prior to updating to 1.1.7, download both files here.
INSTRUCTIONS
Updating to 1.1-edge requires saving the 1.1-edge.upd update file to a FAT32 formatted USB drive, inserting the USB drive into the rear USB port on the MCC, and then proceeding in the UI selecting "Full Firmware Update".
Updating to 1.1.7 requires saving the 1.1.7.upd update file to a FAT32 formatted USB drive, inserting the USB drive into the rear USB port on the MCC, and then proceeding in the UI selecting "Full Firmware Update".