Can't read ISO/IEC 13444A MIFARE Classic Card, even if my device supports them.

[ENZOLU]

I have an ITEAD PN532 NFC Module, connected through UART with an USB to UART adapter. When I place a blank, brand new MIFARE Classic 1K tag (ISO/IEC 13444A) it detects it just fine. But when I insert a different one, it doesn't detect it at all. I enabled debug mode and it displays "RF Communication error". The card can be read with the same module with an Arduino, so the problem isn't neither the tag or the PN532, but libnfc. The drivers are ok, I can read and write to other tags, but with this one, I can't. My phone reads it just fine (MIFARE Classic Tool) and it says it's an ISO/IEC 13444A type of card. So, what do I do? Is there any fix for this?