Tips & Tutorials

Install T-Mobile Galaxy Note 3 N900T Android 4.4.4 W03 Slim KitKat Custom Firmware

W03 Slim custom ROM is a build forked off SlimKat with added features and tweaks under the hood. A huge thanks to the devs for the bases making this possible. Slim for their rom, CM for their device tree, and teams like PA, AOKP, Omni, etc for their features. Ultimate battery, performance and reliability OUT OF THE BOX, that’s the goal of the rom. If interested in Android 4.4.4 for other phones, check out our new Custom ROMs section. You can update T-Mobile Galaxy Note 3 N900T to W03 Slim Android 4.4.4 KitKat custom firmware using the tutorial below. Your T-Mobile Galaxy Note 3 N900T should be rooted and have a custom recovery installed. This is not an official release by Samsung, but just a custom ROM which would require a custom recovery in order to flash the ROM zip and Google Apps zip files on your phone.

As you continue reading below, we will guide you through the entire process of how to install W03 Slim Android 4.4.4 KitKat on T-Mobile Galaxy Note 3 N900T with complete steps. Don’t forget to read all the tips below that you have to keep in mind before proceeding. Please make sure you backup all your data as given below because this tutorial will wipe your data. The following tips are important as they will help the installation procedure to go smooth without any issues. Let’s get to the tutorial now.



Disclaimer: All the custom ROMs and firmwares, official software updates, tools, mods or anything mentioned in the tutorial belong to their respective owners/developers. We ( or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial 😉

W03 Slim Android 4.4.4 KitKat ROM Details:

This amazing W03 Slim custom ROM comes with tons of new features and is based on Android 4.4.4 KitKat. A quick list of the main features in W03 Slim is given below and we are sure you’d love to use this on your T-Mobile Galaxy Note 3 N900T:

  • Slim based
  • Edits/tweaks to make this build absolutely fly
  • Heads Up with many options
  • Peek
  • Floating windows
  • Lockscreen blur
  • Lockscreen notifications
  • Circle app bar
  • TRDS (blacked out phone UI)
  • SlimPIE
  • New Slim recents
  • Stock recents with ram bar and clear all button options
  • Dialer lookup
  • Custom lockscreen targets
  • Customizable nav bar and power menu
  • Status bar options (clock, date, network speed, etc.)
  • Full hardware key rebinding
  • Notification drawer Shortcuts
  • Notifications and Quick Settings options
  • Custom system animations
  • ListView animations

There are tons of useful articles and how-to guides on Team Android for the Samsung T-Mobile Galaxy Note 3, but we think you might be interested in the following posts:

Like this W03 Slim ROM based on the latest Android 4.4.4? We love it too and we know you are looking forward to install it on your phone now. Now please read below for important tips on how to make sure your installation goes smooth and you do not end up with any problems.

Samsung T-Mobile Galaxy Note 3 USB Drivers

You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for Samsung T-Mobile Galaxy Note 3 properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download Samsung T-Mobile Galaxy Note 3 USB drivers!

Backup and Other Important Tips

Done with the USB drivers? Perfect. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps:

Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. See below for some tips on how to backup data:

Samsung users can also back up data using Samsung KIES. If you backup data manually, you get more options what to choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Samsung Galaxy Note backup data to HTC One X.

If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up.

A few more optional tips that you should remember:

1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich, Jelly Bean and KitKat.

2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?

4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

If you find the above tips useful and they were helpful to you, please consider giving us a +1 or LIKE to thank us!

All set and ready? Good. Now, let’s proceed with the tutorial on the next page and update T-Mobile Galaxy Note 3 N900T to W03 Slim Android 4.4.4 KitKat custom firmware.

About the author

Saad Khan

A geek that has converted into a Software Engineer. An audiophile who love to read and write reviews/tutorials about gadgets and new tech stuff.

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