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Press the Fn button to turn on or turn off the PIP.
Button indicator descriptions:
On: PIP is turned on.
Off: PIP is turned off.
3)
Fn: Other functions
Press the Fn button to enter the submenu of the corresponding function.
4.13
Hardware Version
You can view the hardware version. If a newer version is released, you can
connect the device to LCT-Mars to update the firmware of the VX400s.