if you have emui 3.1 you can't flash a kernel for emui 3.0
a question: is your bootloader unlocked? (in fastmode under the green robot there is written in red letters phone unlocked)
EDIT: in your first post you write that the phone is locked...so you need an unlock code from huawei site in...
you can root without a pc with twrp recovery and downloading supersu (flashable) package https://forum.xda-developers.com/apps/supersu/stable-2016-09-01supersu-v2-78-release-t3452703
p.s. have you also deled set_immutable.list file for a proper working root?
I've P7 with android 5.1 and working xposed framework...
Just download and install twrp recovery 3.0. 0 from here http://forum.xda-developers.com/ascend-p7/orig-development/recovery-t3314665
In the xposed thread http://forum.xda-developers.com/showthread.php?t=3034811 download...
with kikat this work (but i don't know lollipop)...
you need root and sqlite editor
-open with sqlite editor /data/user/0/com.android.providers.settings/databases/settings.db
-now go in systemex and find "hw_networkmode_preference" value and edit the numbers of this line with the one you want
9...
I don't use instagram and i don't know what this function is but, maybe, instagram devs want support huawei launcher... if you are a dev you can try to understand the huawei launcher and create an app that enable notification for all installed apps
for me it is the same if you set dt2w to 3 minutes
just download K-Tuned_kernel-5.1.1.zip
if someone want to set dt2w and s2s without init.d can use this apk made by Printusrzero http://forum.xda-developers.com/ascend-p7/development/sweep-double-tap-to-wake-t3036327/post62542196#post62542196
if everything it's ok pressing the three button the phone should automatically start in EMUI recovery, flash the fw and reset the internal memory without the need to select anything...
p7 doesn't have MTK cpu...so there isn't a scatter file and also sp flash tool doesn't work
with update.app and stock recovery you can force the rom's flash by putting the update.app inside a folder in sd card (called dload), shutdown the phone and then pressing concurrently vol+ vol- and power...