Calculatrice ne se connecte pas/Calculator will not connect

[mysterioussir]

La calculatrice de mon ami ne veut pas reconnaître s'il est connecté à d'autres ordinateurs de poche ou à un ordinateur, ce qui rend impossible de sortir du mode Press-à essai. Je peux obtenir mon ordinateur de poche de ce mode, donc je sais comment le faire. Hers est tout simplement avoir des problèmes. Est-il un moyen de résoudre ce problème, ou à le sortir de presse à essai sans le connecter à quelque chose d'autre?

My friend's calculator will not acknowledge if it is connected to other handhelds or to a computer, which makes it impossible to get out of Press-to-test mode. I can get my handheld out of this mode, so I know how to do it. Hers is simply having issues. Is there a way to fix this, or to get it out of press-to-test without connecting it to something else?

[Lionel Debroux]

If the handheld doesn't notice it is connected to anything, there might be a hardware problem.
For now, let's attempt to eliminate software causes. What OS version is that particular calculator running ? Depending on the version, the procedure to obtain the OS version is triggered by HOME 8 4 (e.g. in OS 1.1), HOME 8 5 (e.g. in OS 1.7) or HOME 5 4 (from OS 3.x). The reason I'm asking is that pressing the reset button on the back, into the hole, erases all user documents on old OS versions (IIRC, on OS 1.*), so I wouldn't want your friend to lose documents