If you have a ZHONG JKK A52C and you want to Install Stock Firmware ROM on ZHONG JKK A52C. Here we will guide you to install official stock ROM on your ZHONG JKK A52C. Download the required file to either upgrade or downgrade your ZHONG JKK A52C. This tutorial in We used a tool (software). that known as SP Flash Tool which is very simple and easy. You can just flash the firmware on ZHONG JKK A52C using the Smartphone Flash Tool. Follow the tutorial steps to flash the firmware on ZHONG JKK A52C.