Same issue,  camera won't work after firware upgrade.  I'll wait a little and later if still doesn't work I'll will buy another phone.  Of course not a meizu because several issues in all flyme versions

I have the same problem. I replaced camera and it was working but only a few minutes. I also tried to freeze the flyme camera app, antother flyme version, hard reset and still the same error... Please help

After tried several times and roms including downgrade and still doesn't work.  Sorry Meizu the mx5 was my first and last meizu.  I have just order the new xiaomi mi a1.