Users of LG Optimus G from Sprint with the model number LS970 can now upgrade their devices from Android 4.0.4 Ice Cream Sandwich to the new Android 4.1.2 Jelly Bean (LS970ZVB).
The Sprint LG Optimus G users can install the latest firmware update on their handsets through over the air (OTA) update. In addition, for those who prefer a manual installation, there is a way of doing that as well.
You can find the manual installation procedure on XDA forum now.
The Jelly Bean official update has not officially launched. LG states there was a leak, and the real OTA is still in testing with Sprint as of 02/28. Only manual updaters using the leak are using ZVB-01.
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