Hello everyone!

I've just bought an ooold second-hand nokia 5510 (NPM 5, sw. v. 03.53). So, I went on and activated netmonitor in it There are many "strange" tests (numbered 13x or 18x) probably associated with the mp3 player and the radio.

And now I have the following question:
How can I enter the "help mode" screen of each test in this phone? Holding down the '*' button (as one has to do in similar situation in most dct-3 phones) doesn't do anything. Nor holding down the space does.

So, I would be most grateful to anyone whou could tell me how to access the help (explanatory) screens. Also, where can I find information on the additional tests? Marcin's and Nobbi's guides don't give a clue about them