HP Prime not turning on

[jfelten]

Over the past few weeks, I have been trying to use python to port to my calculator the following game: https://github.com/watabou/pixel-dungeon

On one of my tests, it crashed, then didn't turn on. After resetting it, it still didn't turn on. I tried everything as per this help page: http://www.hp-prime.de/files/composite_f...y_mode.pdf, but to no avail. Is there any fix for this, or should I get a new one?