[T-Mobile, Samsung Galaxy SIII] agriff:
The ROM's name is simply "z999", in reference in reference to my primary ROM for the at&t Galaxy S III i747z

There is no deep meaning to the name, here, I just wanted to keep the letter "Z" in there for the sake of consistency. Plus, I wanted something simple and stock-like on /Settings/About device for the phone for those who might have company IT Departments viewing their devices.

The current Jelly Bean 4.1.2 from Samsung is pretty solid. But, as we all know, for whatever reasons, Tmo will take a good ROM and add restrictions and "features" that make it barely usuable.

Our Canadian GSIII brothers, on the otherhand, have been mercifully spared from the full carrier hack-job given to us by At&t and Tmo. Using the Canadian version of the ROMs build characteristics, I have attempted to give us in the US what Tmo should have.

This ROM is odexed (re-odexed), as it would come from Samsung. In theory, this should give you better speed and battery performance. I have found it be lightning fast, smooth as silk, with best I've tested battery usage. Let me know what you think.

This ROM started off as a port to our still sadly-lacking 4.1.2 at&t i747 devices. After noticing 95% of it would work just as well for Tmo T999's, I thought I would share.

***I do NOT have a T-Mobile T999 GS3 to test the ROM on, so if the modem doesn't flash with the ROM, just reboot to recovery and flash the file I will link to.

If there are any other issues, please let me know and I will gladly try to work them out.

ROM Features:

-Fully Functional Native Call Recording!

-Rooted (Latest SuperSU)

-BusyBox installed

-Based on Stock UVDMD5 Touchwiz 4.1.2 Jelly Bean

-Stock kernel

-UVDMD5 Modem

-Odexed ROM. All Modded APKs and JARs properly re-odexed.

-Partially debloated. Feel free to remove whatever else you don't need.

-Carrier iQ free

-Unbranded-Generic GS3 build characteristics, (Rogers d2can v1 build properties)

-4.1.2 Premium Suite

-All Apps enabled for Multiview

-T-Mobile WiFi Calling functioning

-Extended Power Menu. 4-way Reboot

-****Google Voice****Calls Placed with Google Voice app will now show proper contact Name/Number in Call Logs, instead of GV dial-in-number

-Call Recording is back! Recordings Saved to /sdcard0/Sounds

-24-Toggle Mod, Original blue-themed. Stock Green Theme available as add-on

-Precise battery mod. (This is what I call my 1% battery mod. There are no percentages on the battery, itself. IMO, not necessary since the option to display remaining battery percentage is available to us in a stock ROM. So, whereas in a stock ROM, the battery image displayed in the status bar will change only after 10-15% is lost or gained. With my theme, the blue or green in the battery image will gain or lose one row of pixels for every 3-4% lost or gained. Even without battery percentages shown, in a day or 2 you will be able to guesstimate how much battery you have left within 5%, in my experience.) Thanks to Wanam and Lidroid

-International Boot Animation. Not sure where I got the Startup/Shutdown sounds. Probably a Wanam ROM along the way.

-Fast Dormancy Disabled by default

-Functioning WiFi and Bluetooth Tethering

-Email app, Corporate Exchange policies disabled. http://goo.gl/ShfEg

-White themed email app

-Editable voicemail number

-TMO address book and other TMO apps on data/app and removable

-9-Screen TW Launcher with Scrolling enabled

-Extra Wallpapers in SecWallpaperChooser.apk. All are from various Galaxy Tab Tablets. Very nice HD look

-Increased number of available Speed Dial Entries to 99.

-Join up to 99 Contacts, instead of 5

-Jobnik camera mods. Thanks to him

-Camera available on calls

-Samsung "Find My Mobile"/Samsung Dive enabled in Settings

-Backup to Samsung account now enabled

-Removed "Software Update" option from Settings

-Hardware version shown in Settings.

-Ability to Set Custom Vibrations for each contact

-Option to close browser available on browser menu.

-Removed all carrier Browser Bookmarks. Only 1-preset now, which is Google and is editable.

-Pop-up browser from Galaxy Note 2. http://goo.gl/nGcER

-Extra Touchwiz widgets from I9300 Intl 4.1.2 ROM

-Increased allowed size of custom Ringtones.

-Native Android SIP Calling over 4g/WiFi (with Receive Calls enabled)

-Dropbox with 50gb of extra storage for 2 years

-Updated some but not all of Google Play updatable /system/apps

-Enable dialing contact with motion

-S Translate from GS4

-Throttling disabled

-ad blocking with hosts file

-Group SMS

-Original Themed and color enhanced SMS Bubbles, based on bubble #1

-Unlimited SMS recipient list Fixed 1.0

-Clean Stock Reboot headers (No ROM names on any of them)

-Various build.prop tweaks.

-More tweaks that I can't recall right now. Will edit as I recall.

To Install

-Copy Rom to either sdcard

-Backup Current ROM

-Wipe cache/Dalvik cache. Full wipe Twice. Format /system and /data and /cache. Full factory reset again.

-Flash ROM from recovery

-Reboot

-Be awesome.

More Features, screenshots, and proper thanks and credits to come, when time allows.

Thanks to Wanam for all the apps, mods, and guides he provides.

Thanks to jovy23 for the ROM base and for his many excellent tutorials.

Version 1.0 Full Wipe Strongly Recommended

UVMD5 Modem

Stock TouchWiz Green Theme

Original Blue Theme (Main ROM comes with Blue theme

SecEmail and SecExchange with Exchange Policies Intact

Save additional Battery with lowered backlight values

Looks like I missed the ad-blocking file. Please flash below from recovery.