[T-Mobile Samsung Galaxy S 4] AlaskaLinuxUser:
Being a SlimRoms fan, I looked everywhere for up to date versions of Slim5 or Slim6, and after I couldn't find any newer Slim ROM for my SGH-M919, I decided to compile one. By God's grace, it worked! I hope that other's can enjoy this ROM too, so I put it here to share it with you!

**** This is an UNOFFICIAL ROM. Install at your own risk! ****

Downloads:

Rom Download link:

http://www.mediafire.com/download/3irz4n9kzrawux1/slimlp-jf-20160818.zip

Gapps link:

http://xdaforums.com/slimroms/general/gapps-official-slim-gapps-trds-slimkat-t2792842

I have personally tried the Slim_zero_gapps.BETA.5.1.build.0.x-20160429.zip file, which worked flawlessly. Be sure to slap their thanks button for the Gapps!

Old Rom without hand updated Critical Security patches download link:

http://www.mediafire.com/download/4liij279jjx7pd4/Slim-jf-5.1.1-UNOFFICIAL-20160721-aklu.zip

This Rom has been very stable for me. Be sure to follow these installation steps very carefully, as they may be different then what you are used to.

Installation instructions:

-Download ROM and gapps, and put them on your phone or external storage.

-Reboot into recovery mode - TWRP (I personnally am using 2.8.7.0).

-Backup what you had. (Just to be safe.)

-Wipe.

-Install Rom.

-Wipe Cache and Davlik. <--VERY IMPORTANT!

-Install Gapps. - Optional.

-Wipe Cache and Davlik again! <--VERY IMPORTANT! Or WiFi may not work first boot. Will work thereafter.

-Reboot to system and enjoy!

What works:
-So far everything that I have tried works, such as
- Phone calls/receiving
- Data 2g/3g/LTE
- Bluetooth
- WiFi
- MTP
- GPS
etc....

What doesn't:
- I have not found any big errors, fault crashes, or problems yet. Please let me know if you find an issue!
- I have posted a few notes in Post #2 below.

Change log:

20160818
-Added May 2016 Security updates (Critical updates only) by hand. See posts for more information. May not be perfectly secure.
-Edited updater-script so zip may be flashed on any JFLTE phone. Built for JFLTETMO though. Use with caution!

20160815
-Added April 2016 Security updates (Critical updates only) by hand. See posts for more information. May not be perfectly secure.
-Edited updater-script so zip may be flashed on any JFLTE phone. Built for JFLTETMO though. Use with caution!

20160805
-Added March 2016 Security updates (Critical updates only) by hand. See posts for more information. May not be perfectly secure.
-Edited updater-script so zip may be flashed on any JFLTE phone. Built for JFLTETMO though. Use with caution!

20160721
-Added GPU overclock kernel - control with Kernel Adiutor app.
-Edited updater-script so zip may be flashed on any JFLTE phone. Built for JFLTETMO though. Use with caution!

20160711
-Removed NFCPU in favor of Kernel Aduitor
-Synced with SlimLP source - Note: They do not appear to be updating thier security patches, since Feb, 2016.
-Edited updater-script so zip may be flashed on any JFLTE phone. Built for JFLTETMO though. Use with caution!

20160707
-Added Kernel Aduitor app to build.
-Added Fast Charge to kernel.
-Edited updater-script so zip may be flashed on any JFLTE phone. Built for JFLTETMO though. Use with caution!

20160623:
-Added the Lionheart and SmartMax governors to the kernel.
-Added "No Frills CPU" app to build.
-Edited updater-script so zip may be flashed on any JFLTE phone. Built for JFLTETMO though. Use with caution!

20160618:
-Synced with SlimLP source.
-Edited updater-script so zip may be flashed on any JFLTE phone. Built for JFLTETMO though. Use with caution!

20160512:
-First release.

Disclaimer: SlimRoms is not responsible for any damages to your device.

In the Rom, I left the original SlimLP boot animation, however, I have made a couple of simpler custom boot animations for SlimRoms, which you can find here if you would like to use one of them instead:

http://xdaforums.com/slimroms/general/homemade-slimroms-boot-animation-t3377271

This SlimLP ROM was built for the JFLTETMO, the T-Mobile Samsung Galaxy S 4. However, The updater script has been modified, and it would allow itself to be installed on any of the Galaxy S 4 devices. I have not tried this on any other device, but you are welcome to try it AT YOUR OWN RISK.

A huge thanks to the SlimRoms team!

SlimRoms XDA Forum: http://xdaforums.com/slimroms

Source Code: http://github.com/SlimRoms/

Official websites: http://www.slimroms.net/ or http://slimroms.org/

ROM OS Version: 5.1.1 Lollipop

ROM Kernel: Linux 3.4.112

Based On: AOSP

Device Tree: https://github.com/alaskalinuxuser/

Features the AKLU kernel:

http://xdaforums.com/galaxy-s4-tmobile/development/kernel-marshmallow-lollipop-kernels-t3411543

Created 2016-05-12

Last Updated 2016-12-20

All of my work is completely available for any who wish to use or modify it. I didn't make SlimRoms, the device trees, or vendor blobs. I simply used and edited existing material. A huge thanks should go to those who actually created this stuff.​