Op3 file is working for you? It gives me plain black screen when I open it. How did you manage to make it work? I'm using RRI used the "OP3_Camera_1.4.0_v3.4.zip" on Exodus ROM (2016-10-05)with RAW support.
On Lineage OS (2017-04-06) I tried the "OP2_Camera_1.4.0_v3.5.zip" and can't find the RAW mode in the camera settings.
Any explanations?