My contrast/brightness screens for the 635 may help, they are included with CC2. Basically one keypad key turns down and one turns up for brightness and/or contrast separately. Turn it all the way down and effectively its off! Here is the description....@CF Tech... How do I turn it off? I've try'ed searching in the forum, but no luck. Can you give me a clue?
And thx. again for your support.