Marlin 2.1.x on Ender-3 V2. Can't Update Screen Firmware (2 replies)

Hello all,

I apologize if this isn't a new issue.

I have successfully compiled Marlin, the 2.1.x branch, and applied the firmware to my Ender-3 V2. I am unable to upgrade the firmware on the screen. I have done the following:

Reread the instructions 3 times and followed them exactly.
Formatted my 8GB SD, using a Windows PC, as Fat32 with 4096 byte sectors and tried again.
Named the DWIN_SET folder differently for different attempts, DWIN_SET_2, DWIN_SET_3, etc.

In every case, the screen shows the Creality logo and then the very sparse but functional Marlin text menu. The screen does not turn blue and then orange. The printer starts and goes to a ready state.

I can print with Octoprint and the printer is dialed in pretty well.

I just can't get the screen working.

The printer motherboard is the stock 4.2.2 board.
The screen board is revision 1.3.
Octoprint is current.

Any assistance, or links to articles that reference this would be greatly appreciated.

Thank you,

Darren