I have a suspicion that the Jolla C/Intex Aqua Fish contains an NFC reader, because I have found an antenna inside my phone which UFL connector was labeled with NFC on the silkscreen, and there seems to be a PN544 in the device. I have posted my findings about it on the TJC, but noone responded yet: https://together.jolla.com/question/...an-nfc-reader/
I have built and installed the libnfc-nxp library on my phone, but I have not managed to talk to the NFC chip yet.
If anyone has any ideas please let me know! Thanks!