This is the most common method for administrators using a computer connected to the KSU network.

Click Upgrade SW and select Firmware Update From PCPro . Select File: Browse for the firmware package and click OK .

Navigate to File > Maintenance > Firmware Upgrade . PCPro will prompt you to reset the system. Click "OK." The SL1000 will reboot. Watch the status bar; you have approximately 10 seconds during the bootloader phase to initiate the transfer.

Nec Sl1000 Firmware Upgrade Official