[Samsung Galaxy S5 Neo ROMs, Kernels, Recoveries, &] Neoony:
EDIT: For all the mods, roots, custom roms, MM, recoveries or similar things follow this thread by WILMANS2M:

[HOW TO][SM-G903F][26/09-Firmware, Custom Rom, Kernel, Recovery...]

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The Samsung Galaxy S5 Neo G903F and G903M appears to be rootable with the recent file from https://autoroot.chainfire.eu/

Samsung Galaxy S5 Neo G903F ROOT:

Link: https://download.chainfire.eu/779/CF-Root/CF-Auto-Root/CF-Auto-Root-s5neolte-s5neoltexx-smg903f.zip

Samsung Galaxy S5 Neo G903M ROOT:

Link: https://download.chainfire.eu/780/CF-Root/CF-Auto-Root/CF-Auto-Root-s5neolte-s5neolteub-smg903m.zip

Samsung Galaxy S5 Neo G903W ROOT:

Note: For this version of the phone, use the G903F version of the ROOT. (Above)

It was reported working by user 9vs:

This WILL trip KNOX! And you will most probably lose warranty!

Enable "OEM Unlock" in developer settings. Also enable USB debugging in developer settings. Before flashing!

Read the guide below for more detailed instructions.

Solutions to common problems are at the near bottom of this post.

TWRP Recovery and Xposed Framework at the bottom of this post.

Detailed how to guide, thanks to NotGrump903:

[QUOTE="NotGrump903, post: 0"]I wrote a little guide on how to root Samsung Galaxy S5 Neo SM-G903F with this new CF-Autoroot files.
Should work with SM-G903M too, you just need to download the file for the M variant.

Note that this will trip KNOX to 0x1! You, and only you, are responsible for what you do with your device.
When something goes wrong no one from XDA can held responsible. Do this at your own risk!

First make sure you have the latest Samsung USB drivers.

Then simply follow these steps:

1. Download the CF-Autoroot zip file for your phone from [URL="https://download.chainfire.eu/779/CF-Root/CF-Auto-Root/CF-Auto-Root-s5neolte-s5neoltexx-smg903f.zip"]here for G903F[/URL] or [URL="https://download.chainfire.eu/780/CF-Root/CF-Auto-Root/CF-Auto-Root-s5neolte-s5neolteub-smg903m.zip"]here for G903M[/URL]

2. Extract it to desired location.

3. Enable USB debugging and OEM-Unlock in developer options of S5 Neo.
If you don't know how to do this or what this is,
you should most probably stop right here and leave your phone as it is ;)

4. Open Odin.exe from extracted folder.

5. Power down your phone and boot into download mode by pressing and holding Vol. down + Home + Power.
Confirm by pressing Vol. Up.

6. Connect your phone to your PC and wait for Odin to state "added".

7. Click on AP button and select "CF-Auto-Root-s5neolte-s5neoltexx-smg903f.tar.md5"

8. Wait for Odin to finish binary check, then simply press start and wait.

The phone should restart a few times. When this is done you're rooted!

All props go to [MENTION=631273]Chainfire[/MENTION] for providing Supersu and CF-Autoroot. He is simply the best![/QUOTE]
[SIZE="1"]-Edited by Neoony, tiny changes to links and formatting.[/SIZE]

Thanks to Chainfire :P

All credits go to him :)

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Hoping to see custom ROMs, so Iam trying to let everybody know that it was rooted by this thread. And to make things clear.

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G903F XDA Forum User Thread: http://xdaforums.com/galaxy-s5/general/galaxy-s5-neo-sm-g903f-user-thread-t3207909

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Common problems and solutions:

-Titanium backup reporting "Mounting the partition namespace may not work correctly in some platforms" / Unable to copy app, because of "No storage space available"
+Go to superSU settings and disable "Mount namespace separation"

NEW! TWRP Recovery: https://twrp.me/devices/samsunggalaxys5neoexynos.html

NEW! Xposed Framework: http://xdaforums.com/xposed/unofficial-xposed-samsung-lollipop-t3180960

Use these versions with Xposed framework: xposed-v79.0-sdk22-arm-custom-build-by-wanam-20151217.zip / xposed-uninstaller-20151217-arm.zip

"How to" can be found in the above links.

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EDIT: For all the mods, roots, custom roms, MM, recoveries or similar things follow this thread by WILMANS2M:

[HOW TO][SM-G903F][26/09-Firmware, Custom Rom, Kernel, Recovery...]