HP Prime Screen Dimming Hack

[JDW]

While Googling this issue of Screen Dimming, I found Joe Horn's reply, saying it cannot be done without using the USB cable. The problem is that I want to shoot photos of the Prime without the USB cable attached and without having to press a button every 25 seconds or so to keep the screen alive. Simply pressing a button to reset the dimming timer is a problem because the button press shifts the calculator position slightly, and fingerprints can get on the calculator that way too.

With all of the amazing things this calculator can do, especially through programs and apps, surely there must be some hack to keep the screen at full illumination either indefinitely (until the battery drains) or at least keep in on at full brightness for several minutes.

Tim Wessman, any good ideas?

Thank you!