Welcome @Xeon Luenardi glad to have someone with your kind of expertise here and interested to know how M5Stack devices could be used in prototyping prosthetics. Some of our Japanese users have used M5Stack to modify wheelchair controls and a father creates rehabilitation toys with M5Stack for his son who has cerebral palsy, but nothing in the way of prosthetics yet, look forward to seeing your projects. Luke

If you can share your code, it would be much easier for us to help resolve the problem. What exactly are you trying to do with the keyboard face?

@Sparky I'm afraid I will have to delete this post unless you re-edit with an actual question

@Alpine-Lake which operating system are you on? If on Mac Uiflow software must be in the applications folder for the firmware burner to be able to download the firmware files and function properly

Hi That is not the main documentation. Please go to docs.m5stack.com for the main hub of M5Stack documentation

Have you tried to erase the flash memory with the M5Burner or firmware uploader inside UIFlow offline IDE?

@Skink Short answer: No you don't need it for normal use of any m5stack product. It is only required if there is a major update to any m5stack product that doesn't have a usb port

Please do not double post. check your other post in general

maybe this video I made can help you. If you check down in the comments it mentions what to chang if you have the rfid unit https://www.youtube.com/watch?v=R8O-CvKzqNM

Bluetooth is still not supported in the official micropython https://github.com/micropython/micropython/pull/4589