I have recently flashed Lineage OS 14.1 (fortuna3g unofficial build, Android Nougat 7.1.2) onto my Samsung Galaxy Grand Prime Duos (G530H/DS). Everything in working order, except the rear camera. Each time when I try to access camera from other apps(Whatsapp, Banking etc.) OR opening the stock camera app, it gives me "Can't connect to camera" message.
I have tried with 3rd party apps (open camera), some online tutorial fixes (cmfix camera fix for cyanogenmod), restarting camera app, restarting phone, reflashing LOS 14.1 etc.
I went back to stock to verify that camera works fine. There is no hardware issue.
Anybody had similar problem? Were you able to fix it?