@Poppa-Large Did you try erasing and writing the Core2 firmware and not the firmware for another different core?
Blank screen usually means you wrote the wrong firmware or you wrote some code that doesn't use the screen.

@Handcannon It is not a computer, it is a microcontroller and so only one firmware can be burned at a time.

@Handcannon We are not telepathic can you explain what your problem actually is?

@Nooblearns have you installed the ESPtools?

@williamsmaith Thank you, Your question could have been interpreted in many ways but, now we know your base level of understanding we can give details.

One of my projects uses a Mio robot I got cheep from a toy store. I removed the circuit board and found the M5Stack core fits it perfectly (you can find the project on hackster).
The biggest none m5stack range you can try is technic lego, the options it offers is amazing. I use the pressure sensor to expand the ability of technic pneumatics.

I have an old lego computer interface that I can control from a core.
We had one member controlling DJI drones and RC cars.

@williamsmaith Do you know how to code?
do you understand electronics?
Have you tried any of the M5Stack accessories?
Have you looked in the documents and tried to replicate and of the M5Stack devices?

@PavelNDC Public (red) means that's it's not connected. normally this is an issue with the M5Stack server.

@Nooblearns what error?

@Wizzy38952 Have you charged it?
Erase bruce and only burn UIFLOW2

@VVong_san_ Are you erasing the old firmware first before burning?