Download Android Jelly Bean 4 1 2 stock firmware for Lenovo A770e smartphone Download Android Jelly Bean 4.1.2 stock firmware for Lenovo A770e smartphone from here or here. Download previous firmware from here. Firmware details Archive: Lenovo_A770E_4.1.2_20170613 Image: Lenovo_A770E_SJJL_ROM_20170613A.zip Platform: Qualcomm Snapdragon 200 MSM8625Q Archive file size: 307 MB Model: Lenovo A770e smartphone Build number: athenaep-user 4.1.2 JZO54K A770e_SS_1_2_001_0062_130819 releasekey Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data. Don�t miss any of our future video tutorials, follow us on Youtube. Like us on Facebook. Add us in your circles on Google+. Watch our photo albums ...