ICON issue

[critor]

For information, I've managed to get a tiny little reaction from the calculator.

If I remove the battery, then when I connect the USB the screen turns on in white for less than a second, doesn't display anything, and then immediately turns back off.

From then, no other reaction by trying everyting already mentionned in the previous post.


Is there still anything than I can do for this calculator ?
Thank you very much.