[Samsung Galaxy S8 Guides, News, & Discussion] penguinthatflew:
*UPDATE*

Easier method using ADB commands from luisshnyder and I.

Go on ADB commands, and type: "adb shell wm overscan 0,0,0,-168"

0,0,0,-X is the value that determines how much you push the navigation bar down off the screen. In luisshnyder's experience with a s8, and s9 he found that -210 is a good value for X. However, I had issues in some apps and used Snapchat (with my camera covered for a black background) to pinpoint a position where the navigation bar disappeared. This was a value of -168 for X. This means that I can now send snaps fine as before with a higher value the UI scales off the screen making it impossible to send snaps with text. This was tested on an s8+ however. Of course, if you want to return the navigation bar back to its original position just use 0 as a value for X.

Again thank you to luisshnyder for the help in finding this method. :)

Hello,

I have posted this as a reply over on the thread "Getting rid of Galaxy S8 Navigation Bar - Full screen navigation" by " juliang22" but wanted to try and get this solution out there as I know how hard it was for me to try and find a working solution without a root.

*Note*

I have only tested this on a Galaxy S8+ unlocked.

This method assumes you already have the apps installed for your new gesture keys that are explained in the original post of this thread and have cloned it successfully.

There is a small fee to this method but I can't for the life of me find another way.

This method may be out there already somewhere but I couldn't find it or at least find instructions for someone like me.

*Method*

Ok so first you will need to install the following apps on your device:

Substratum

https://play.google.com/store/apps/details?id=projekt.substratum&hl=en
​

Andromeda

https://play.google.com/store/apps/details?id=projekt.andromeda&hl=en
​

[Substratum] Samsung System Mods

https://play.google.com/store/apps/details?id=substratum.draco.systemmods&hl=en​

Immersive - Low-Level Immersive Mode

https://play.google.com/store/apps/details?id=com.draco.immersive&hl=en​

You will get a red box when opening andromeda but this is fine, I will explain this in a bit.

Next open the immersive app and enable immersive full from within it. (Note you will have to go onto a computer to run the adb command from within cmd.exe. Just type it as it tells you to)

Once you have done this, open Andromeda. A red box should appear. Go back onto your computer and install the appropriate program for your machine from step one of this thread "https://xdaforums.com/apps/substratum/andromeda-desktop-clients-release-notes-t3668682"

Extract the downloaded file and open the readme.txt file. Plug your device into your computer. Then click on the "start_andromeda" file, run it then hit any key.

Return to your device and substratum should open fine. The andromeda desktop client should connect fine and you should get a green box when checking the status. Substratum will then reopen and you should see the samsung system mods as a black box option upon launch.

Click on the system mods option. Scroll down to the orange system ui and toggle the check box on the right. Then click the down arrow below it and search for "Oreo (S8) Narrow Nav" Click this. Then click the grey circle at the bottom right and select "build and enable".

Once you have done this go back within the app. Click "manager" at the bottom and then select the check box next to the narrow nav overlay you just "built". Click the grey circle again and choose "enable selected".

I have been faffing around with methods for hours now so I don't know if it is required to restart your phone but I did and it seems to be working fine. Hey now I seem to have the hard press function back over the original method in this thread.

Sorry if my instructions aren't clear but this is my first time at this. If you need a hand I'll be more than happy to try and help but to be honest I was so excited to get this to work after hours of experimenting.