Datavideo ITC300HP2K Instruction Manual page 30

3. Turn the ITC-300 base unit back on again.
 If you are upgrading the ITC-300SL, press the CALL button before turning on
the ITC-300.
 If you are upgrading the ITC-300, press the SHIFT button before turning on the
ITC-300.
4. Select "Automatically update the device to latest firmware version" then click
NEXT.
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