Download Android Jelly Bean 4.2.2 stock firmware for Lenovo A889 smartphone from here or from here. Download another Lenovo firmware from http://mallcopwarrior.blogspot.com /search/label/lenovo" target="_blank">here.
Archive name: Lenovo_A889_4.2.2_SD_20160921
Archive file size: 302 MB
Firmware: Android Jelly Bean 4.2.2 stock firmware
Model: Lenovo A889 smartphone
Platform: Mediatek MT6582
Build number: lcsh82_wet_jb5-user 4.2.2 JDQ39 72 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.
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