QBest SX-06L User Manual page 15

Trouble Shooting
Q2: After turning on the computer, I see the icon
There are two possible causes if you see the icon
1) The USB phone fails to communicate with your PC. Please check whether
the USB port is in a normal state.
2) The USB phone fails to work normally in Windows. You may need to
reinstall the device driver. Please follow the steps below:
"Start" – "Setting" – "Control Panel" – "System" – "Hardware" –"Device Manager"
Then, you will see the following window. Please check whether these
three devices below are in a normal state.
"USB Human Interface Device"
"USB Audio Device"
"USB Composite Device"
User manual QBest Basic
. Why?
:
- 15 - Version 0.9.0.0