Root [B510,B511] and reveal M secrets

u only need to follow this *step by step*
get this ..
- https://goo.gl/vqT3J0 *for windows*
##to the steps##
Install the custom recovery using fastboot
##

Fastboot devices
fastboot flash recovery twrp_2.8.7.6_6.img

##
then go to recovery in your mate 7 , power + Volume up
install , choose supersu_2.64_pro.zip
##if u want to unroot , flash unSU or from inside in superSU , unroot
11.recovery is the official reocvery of M
boot.img is the official boot of M
-------------------------------------------------------
now for android marshmallow hidden features
- Get any root explorer (Fx is the best with Fx root add-on ..)
open system\build.prop
and search for
# ro.build.type #
change it from #user# to #userdebug#
secret expermintal features now appeared , u can see them at developer options and other places.


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