It might be necessary to also flash the modem listed above in order to get working RIL.
ROM is based on LineageOS device tree and kernel. I'm not responsible of any harm this stuff can do.
this is my manifest: https://github.com/dawidd6/android_manifest/blob/master/local_manifest.xml
and my device tree: https://github.com/dawidd6/android_device_samsung_i9305
UPDATE: i've successfully built this morning CM12.1 base...
It seems that flashing only modem from new stock through recovery does the trick. Thanks to stek-kravari for sharing the modem with me.
Here is the zip: https://www.dropbox.com/s/eior9qfri8njcza/I9305XXUFQG1_modem_flashable.zip?dl=0
Now i have w...
Latest version is booting normally, so the bootloop problem is solved. However i prefer RR :)
I can confirm this connection lost. That's a lineage bug. Need to wait for rgib to fix that