Isran, note-off problems ? I think 1.61 don't fix any note-OFF problem.
What is you configuration ? keyboard directly plugged to the preenFM ? What kayboard model ?
Well, I mean, when trying to play a chord, some note always got stuck - isn't it a note-off-problem, when thay are left ringing? I used my old Roland JV-80, it has always worked according to MIDI specs before...
Aouch.... no....
You should have 2*5mm and 4*10mm...
5mm are supposed to be under the LCD, the 2 LCD screws should go through the two 5mm spacers.
The 10mm are the ones to separate the PCB from the blue surface control.
If I tried that, LCD pins would bend VERY much. The short screws were too short and the long ones seemed quite long. A few washers helped.
Well, it is okay now, and works. I have to try, are the notes still left ringing with 1.61. Will tell you later.