V3.7 For J200g |best| | Next Gen Os

Boot into TWRP recovery and perform a "Wipe" of the System, Data, Cache, and Dalvik Cache .

Next Gen OS is heavily debloated and deodexed , removing unnecessary system apps to free up precious internal storage and RAM. next gen os v3.7 for j200g

Obtain the Next Gen OS v3.7 ZIP file and store it on an external SD card. Boot into TWRP recovery and perform a "Wipe"