User's Manual
2-12
Chapter 2: Installing and using the AiGuru S2 Utility
During the rmware updating, turning the handset off or removing the
USB cable will seriously damage the handset.
Firmware update
A gray-out Firmware Update button
means that your AiGuru S2 uses the latest
rmware. If not, follow the instructions
below for rmware updating.
Update the rmware to obtain the best performance and stablity.
1. Connect your handset to your PC through the providing USB cable and click
the Firmware Update button to apply the latest rmware for your handset.
2. The warning messages appear Pleasedon’tremoveUSBcable.
If you
remove the USB cable, the warning messages appear Do not power off.
3. After the process is complete, follow the instruction to reboot the handset.