[Q]How to root Alcatel Hero 8 4.4.2

Hi



I got a Alcatel Hero 8, os is 4.4.2, soc is Mediatek MT8392.



I looking for a tools to root it without installing wired apps.



Tried Framaroot, failed



If no tools, the original recovery can open adb, so are there any manual method to root it?



thanks

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