I've tried everything and I think the problem is that it doesn't recognize the microSD, I'll try with a different SD and I'll update you. Thank you
How did you format your SD card?
Out of the box, most new cards just have one big FAT32 partition, which works fine for basic data storage under Linux. But if you want to actually boot and run Linux off the card, you need to set up two partitions - a small FAT32 partition for bootloader and a larger EXT4 partition for the root filesystem.