HP-Prime custom test mode with hacked LEDs
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Published on ● Video Link: https://www.youtube.com/watch?v=Nq5Udq9O6dg
Red and blue LEDs have been disabled like this :
https://tiplanet.org/forum/gallery/image_page.php?album_id=194&image_id=5326
So even in custom test mode, the LEDs do only flash in green, as if the calculator was in default test mode.