I’ve just finished building my MPCNC.
Rambo 1.4
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?