Archive name: Lenovo_A670T_4.2.1_fw_20150910
Firmware image: Lenovo_A670T_SJJL_ROM_20150910
FW version: Android Jelly Bean 4.2.1 stock
Archive file size: 245 MB
Model: Lenovo A670T smartphone
Platform: MediaTek MT6589
Build number: lcsh89_cmcc_jb2-user 4.2.1 JOP40D 99 release-keys
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.