Try mong kung gumana. AFP kasi phone ko then may tutorial kami sa ganito, share lang.
Before starting :
Download and install Terminal emulator app "in playstore"
Download and unzip "Replace_Kingroot_With_SuperSU.zip" file "http://phc.onl/#forbidden#/fo78zx"
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Steps :
Send the extracted folder "mrw" to the internal storage of your device and make sure that this folder contains 4 files
*note: The extracted folder must be in /Phone/ or internal storage.
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Open Terminal emulator and type :
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su
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and enter, then it will prompt
*Allow root permission
then Type :
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sh /sdcard/mrw/root.sh
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*It might display some error, at the end it will launch supersu or open supersu manually.
*Update su binary normal, then reboot.
Done!.
Credits to the owner