You need to format it as FAT32, and any card above 32GB will be formatted as exFAT by default. For those cards, you need to use a tool such as FAT32 format (guiformat) : https://lecrabeinfo.net/telecharger/fat3...-format So format the card as FAT32, extract/ copy all the files for OnionOS on that (FAT32) card, put it back in your Miyoo Mini (Plus), turn it ON, follow the set up on screen, (copy ROMs and BIOS files on the card only at that stage), and enjoy your new firmware
I have the same issue (I guess) : wifi stucked in "activating" and no bluetooth connexion at all (no wifi at all either). But I already factory reset the device, it didn't solve the issue. Could someone comment on what could be the (hardware) problem and if it is fixable ? H960A (european 32GB), rooted.
That is the main reason why you should avoid those Apple new laptops. The other one is that each of the Apple laptops has design flaws (and this has happened for many years) : check Louis Rossmann videos on youtube, this is eye opening.