Solved: Unable to use SD card other than polyend supplied

[Dann]

Hi @paul-8189. I’d give this a read and walk through the steps. It usually resolves these issues.

What capacity SD cards can be used and what's the file partition format used?

If you are on Windows 10/11, formatting bigger cards (32+ GB) to FAT32 can be a bit of a pain. Here’s a quick guide that will help you achieve this: Format the SD Card with the default Windows Formatter as exFAT (leave all default settings) Download the GUI version of fat32format here: Ridgecrop Consultants Ltd Click on the Picture to download it Convert / Format the card once more in that utility to FAT32 (leave all default settings)