I installed iodéOS on my Japanese SIM-free variant of Xperia 1 V (pdx234, XQ-DQ44). It’s working with almost no issues. But in settings, the model is shown as XQ-DQ72 instead of XQ-DQ44.
I know nothing about technical things, but this might be leading the FeliCa/Osaifu-Keitai support unusable?
(XQ-DQ44 has “setprop persist.vendor.nfc.config_file_name” but XQ-DQ72 does not)
We try to keep the list of supported models as comprehensive as possible and effectively do not support any that are not listed.
If your model is not listed, it is not supported. We do not keep track of the reasoning for which models are supported and which are not, so please don’t ask!
Your device XQ-DQ44 is therefore unfortunately not supported by LineageOS or by IodeOS.
It is quite common that the Japanese variants of Sony devices ‘nearly work’ with custom ROMs built for the non-Japanese variants, but with some features - in particular country-specific features like FeliCa/Osaifu-Keitai - that do not work. Looks like this is the case here.