Have you been messing around a bit to much with the system files on your Jelly Bean powered Nexus device and want to return it back to its factory state? You in luck my friends as Google just released the factory 4.1.1 images for a few of the Nexus units, including the brand new Nexus 7. The devices with available factory images are as follows:
- Galaxy Nexus (yakju): Android 4.1.1 (JRO03C)
- Galaxy Nexus (takju): Android 4.1.1 (JRO03C)
- Nexus S (soju): Android 4.1.1 (JRO03E)
- Nexus S (sojua): Android 4.1.1 (JRO03E)
- Nexus 7 (nakasi): Android 4.1.1 (JRO03D)
As you can see, the Verizon Galaxy Nexus has been left of the list, and the Korean and Sprint Nexus S isn’t available either. This just goes to show that if you want to stay up to date with the latest Android OS it pays to go with a GSM kit. If you see your device listed above and want to grab its factory image, hit up the source link below.
source: Google Developers