The zip contains 4.2 Camera App and 4.2 Gallery App. It's a self installer zip, so the only thing that you have to do is wait the finish of installation.
Same Photo and Video quality of original Camera App
HD 1080p Videos
Edit Features in Gallery App
Many Camera and Video Features
Original 4.2 Video Player App
When phone saves new Photosphere photo, phone freeze and you need to reboot (see below), but when phone is restarted Photosphere photo will be saved.
If you take a photo with Flash, camera app freeze, so take Photos without Flash...
1)Choose if you want to leave stock Camera (4.2CAM&OLD-signed.zip) or if you want to remove old stock Camera (4.2CAMONLY-signed.zip);
2)Download it (links are below);
3)Put zip into phone's memory;
4)Reboot in recovery and install zip;
5)Reboot your device and enjoy!
Reboot your phone if it freeze: hold power button for 10 seconds
4.2 Camera and Stock Camera: https://docs.google.com/file/d/0B9Py...it?usp=sharing
4.2 Camera only: https://docs.google.com/file/d/0B9Py...it?usp=sharing
Start download by clicking on File>Download