All you will need is a rooted Android ICS smartphone with a custom recovery installed on it.
Installing Android 4.2 Camera on ICS devices
The best thing about the mod is that it does not replace your stock camera app. Instead, it adds an additional camera. So even if the new camera app does not work on your device, you can always use your existing camera to take photos. Sounds good, right? So let’s have a look on how you can install the camera on your rooted ICS or 4.1.x Jelly Bean Android smartphone. Note: Though the app can be installed on any device, the Photosphere feature will only work if the device has a gyroscope. Step 1: Head over to this thread in XDA and download the latest flashable zip file of Android 4.2 camera and save it on your computer. Step 2: Transfer the zip file to your Android SD card or internal storage space if it is equivalent to SD card storage, and reboot your device in recovery mode. Step 3: All you need to do now is flash the zip. Just make sure you take a Nandroid backup of the current state of your ROM. No need to go for a full wipe but you should clear device cache before installing the zip file. Step 4: After the file is flashed successfully, reboot your device and wait for the Android to upgrade and optimize your existing apps to work on the new update. You will now see both the camera apps in your app drawer. The first one will be the stock camera app that you were using till date and the second one will be the new Android 4.2 camera that we just flashed. In the best case scenario, the new Android 4.2 camera will work on your device and you can straightaway start taking photos. If you would like to try Photosphere, you will have to make a switch using the camera menu. If you are not sure about how the new Android 4.2 camera works, I would suggest you to have a look at this video which talks about all the new features of the camera and how they can be accessed.
Some of the users might get an error while accessing the new Photosphere feature and in that case you will have wait for an update that. Keep a close look at that thread on XDA.
