I managed to finally root my M3.
1. Unlock Bootloader.
http://xdaforums.com/showpost.php?p=68922164&postcount=5
2. Install TWRP.
http://xdaforums.com/mediapad-m3/development/twrp-greatslon-mod-t3489232
3. Use SRK Tool to root.
http://xdaforums.com/p9/development/tool-srk-tool-huawei-bootloader-root-t3374068
1. Unlock Bootloader.
http://xdaforums.com/showpost.php?p=68922164&postcount=5
2. Install TWRP.
http://xdaforums.com/mediapad-m3/development/twrp-greatslon-mod-t3489232
3. Use SRK Tool to root.
http://xdaforums.com/p9/development/tool-srk-tool-huawei-bootloader-root-t3374068
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