In this tutorial i am going to show you how to hide navigation controls / navigation bar of Huawei Mate 7, which was a builtin feature in old firmwares but they removed it in marshmallow update. this feature allows you to make use of full screen and you can always unhide navigation bar by swiping up on bottom part of screen.

Hide navigation bar huawei mate7

Steps:
1. Your phone must be rooted. (How to root ?) don’t use kingroot, otherwise your device will be dead.
2. Install Fx explorer on your phone , you can find it in play store.
3. Download touch plus from This Link. 
4. Now we will modify build.prop to enable hide navigation bar

Open Fx explorer and tap on system (root) folder as shown in image below.

Hide Navigation Bar Huawei Mate 7

on next screen tap on system folder , as shown in image below

Hide Navigation Bar Huawei Mate 7

on next screen tap on small lock icon to unlock it, phone will ask for permission , tick in ” i understand risk” and press OK, than open build.prop file , as shown in images below

Hide Navigation Bar Huawei Mate 7

Hide Navigation Bar Huawei Mate 7

once file is open, tap on pen icon on top right side to enable editing, as shown in image below

Hide Navigation Bar Huawei Mate 7

once editing enabled, you need to find the following line: ” ro.config.hw_touchplus_enabled=false ”
change it true, as shown in image below

Hide Navigation Bar Huawei Mate 7

if you can not find this line you can add it by yourself: ro.config.hw_touchplus_enabled=true

Then tap on 3 dots menu button, and tap on save, as shown in image below

Hide Navigation Bar Huawei Mate 7

and don’t forget to turn on the lock again. as shown in image below

Hide Navigation Bar Huawei Mate 7

now exit fx explorer, and restart your phone.

if you have done everything correct, you will see touchplus option in smart assistance menu,
if you can see it, then enable floating dock, as shown in image below

Hide Navigation Bar Huawei Mate 7

when floating dock is opened, tap on back and go in touchplus option, and enable it, as shown in image below

Hide Navigation Bar Huawei Mate 7

and a small arrow will appear on your navigation bar, now you can trun off floating dock and hide navigation bar.

Hide Navigation Bar Huawei Mate 7

Credit for this guide goes Chudy_85 of xda who found solution and shared with all of us.