I’m hoping somebody can help with this.
I bought the printer a while back but only just got around to setting it up. I was able to print a model with it, but when I went back a while later, I just got a blue screen with Reality across it.
After some research, I found a thread that indicated it might be corrupt firmware, so I downloaded the latest firmware from the Creality website and tried to update. The instructions were - to say the least - unclear. e.g. it says to update the display you should copy the files firmware.zlib and private to the SD card.
There is no firmware.zlb, but I guess they mean the full name that is there.
private is a folder, not a file.
Anyway, I copied the .zlib file and renamed it to firmware.zlib and I copied the private folder to the SD and switched on. Nothing.
So, I tried with the main firmware. Again, nothing.
I had a problem loading firmware to my 3v2 for the cr touch, it all came down to my sd card not being under 8gb, I was using a 16gb card as so as I switched, it loaded and worked. format the card and just install the firmware file. nothing else
I can answer this myself now as I’ve got it to work.
Do not use a Mac to format the SD card that loads the display firmware on to the SD. MacOS creates a couple of hidden directories and the boot loader won’t function if there is anything other than just what it expects on there.
What the creality instructions don’t tell you - and neither do any of the other guides I’ve found - is that the display has its own SD card reader. You have to open the display to get to it.
Ensure you update the display before you try and update the mainboard.
There are several variants of the display and each uses different components of the supplied .zip. In my case, I needed the TJC_SET folder - and nothing else - on the SD Card.
The 8GB limit got me as well as the macOS Finder hidden files. You can show them CMD+Shift+(period) but I don’t know if they stay gone if you delete them. I booted up a Windows machine to format the SD but it was not until trying to flash the display and getting a message that there were too many tft files when I knew that there were not that clued me in. Took minutes to do the machine and display using Windows.