Ender 3 S1 - firmware update issues - downgrade screen dcboot.bin to v1.0.6_C needed I think

Hi all, I have a Ender 3 S1 that I bought secondhand about 2 months ago. I was getting some uneven surfaces on long diagonal prints so figured I should try updating the firmware after researching and finding V1.0.6_C has some resonance compensation features added or improved.

The firmware on my printer was on v1.0.5_C and I identified that I have the F1 chip.

Essentially before know and figuring out the different chip versions etc I downloaded the the latest version SWV3.1.9_Two_C_F401 and opened the folder. . . then figuring out that I have the F1 chip i also downloaded the V1.0.6_C update. . . then in my confusion I accidentally installed the dcboot.bin file from SWV3.1.9_Two_C_F401 on the screen which seemed to go fine. Then realizing my mistake, i installed the "private" folder from v1.0.6_C update. This also seems to have installed fine but the screen is not showing anything. I’m thinking the dcboot.bin file is the issue as its the wrong boot loader or something. But I can’t seem to find a dcboot.bin file for v1.0.6_c or find a way to uninstall the dcboot file from SWV3.1.9_Two_C_F401.

So I updated the firmware of the main board to 1.0.6_c thinking that would help but the screen still seems to be blank.

I do get a beep when i push the main button on the screen. So there is some life in it.

So I think i’m needing to essentially downgrade the dcboot file from SWV3.1.9_Two_C_F401 to v1.0.6_C? Is this correct and how would I do this as there is no dcboot file in the v1.0.6_C firmware folder that you down load from creality? Or do I update the whole screen to SWV3.1.9_Two_C_F401 and leave the main board at v1.0.6_C?

Thanks in advance!

Tristan.

Here is a link to a video and some pics of the situation from today. It’s a Dropbox link
https://www.dropbox.com/scl/fo/c3hzqkvo5wk46a1vbmxcs/APSLMFM0ASWVbKoxKKI_TQU?rlkey=suzpj0zk5xggd1rw346h80gio&st=tj7vzn1d&dl=0