I’ve just finished building my MPCNC.
Bigtree Tech Smart Controller
All wiring, motors, Rambo, and screen purchased from V1 Engineering.
The screen lights up when plugged in as shown, but I can’t get any text to show up. I’ve tried all the different plug arrangements.
I’ve reviewed this thread:
Rambo 1.4 and LCD issues - Mostly Printed CNC - MPCNC / Troubleshooting - V1 Engineering Forum
Is it possible my Rambo did not get flashed prior to shipping? I bought it earlier this year (2021), maybe 3 months ago?