(Some) Nextion Displays not working

Björn Pasteuning
 

I have some Nextion Display (Basic) 2.8" / 3,2" / 4.3"

I Succesfully programmed the 2.8" variant with the firmware of KD8CEC. and works great,
I have also programmed the 3.2" and 4.3" with adapted KD8CEC firmware, and also the firmware of KN4UD
But they both dont communicate with the uBitx

All nextion's where programmed via the serial cable, So I know that port is working ok.

What could be wrong?

 
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73' Björn de PD5DJ
www.pd5dj.nl

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