That’s the reformat mode. One thing you could try (under your own risk) is to set any 3.0.xxxx as current build and create a new USB (not a card reader) with the target desired versions while the 4’’ screen is connected, once it’s done, install the 8’’ screen. Make sure no other device is connected to any USB port.
If that does not work and the unit ends up dying, you will have to replace it.
Nah, I do not think that’s the case here… How much “varied information” is to confirm you do or do not have MY20?, really simple, right?.. Our documentation is pretty straight forward…
I wonder if you omitted saying basic things like “hi” or “thanks” because you are still confused…