BenQ SL490 - About; Supplementary

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About
Main info in About:
1. BenQ Software Update
2. Android version
3. Kernel version
4. Build number
BenQ Software Update
Software upgrade via the Internet or USB device.
After select update.zip le, PD will restart and start to update.
Supplementary
Rotation
Via Scalar OSD menu to operate Rotation:
Home > Conguration2 > Rotation > OSD rotation