Init() without audio (not working?)

Hi! I’m a newbie and I have problems. I took the Patch.init() from a friend to try it, but he said that it might be buggy.
I tried to upload all sorts of firmware on it, but it doesn’t reproduce anything and doesn’t do anything.
The firmware download does fine, the blink test works, but the module is silent.

Tell me, what could be the problem? In hardware? Or I must reset it to factory settings or something else?

Thank you!