I have a Sony Xperia C with Jellybean and there is no official update for its firmware. Sony gives up on it and won't release any more updates for it.
I need to install some apps that need Android 5.0 at minimum, so I found some custom ROMs that update my phone to 5.0 but after updating using CWM I found it still can't parse any 5.0 app and I get the following error:
"Parse Error: There was a problem parsing the package"
Any other 4.2.2 app is working with no errors so I don't know if I miss something after update or if this ROM is not a real update and it is just a modification to Jellybean.