Update T-Mobile Galaxy S3 T999 to Android 7.1.1 MoKee Nougat Custom Firmware

MoKee custom firmware for Galaxy S3 I9300 is AOSP based firmware that brings Android 7.1.1 Nougat on this device. Galaxy S3 I9300 is a very old device and won’t receive the latest Android OS officially so the best way to get the latest Android OS on it by installing a custom firmware and this ROM provides a great way to enjoy the latest Android Marshmallow OS, optimise and enhance its potential even more. It is very close to Marshmallow factory images visually but under the hood there a lot of tweaks to make this ROM stable, fast and smooth. If interested […]

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Update T-Mobile Galaxy S3 T999 to Android 7.1.1 OctOS Nougat Custom Firmware

Team OctOS proudly presents their latest Android 7.1.1 Nougat based custom firmware for T-Mobile Galaxy S3 T999. This custom firmware contains all of the features for which OctOS is known for plus there are a couple more Android 7.1.1 exclusive features. Moreover, this is a weekly ROM so some bugs may show up and we expect that these bugs will be completely rectified in the final version. If interested in Android 7.1.1 for other phones, check out our new Custom ROMs section. You can update T-Mobile Galaxy S3 SGH-T999 to OctOS Android 7.1.1 Nougat custom firmware using the tutorial below. This […]

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How to Install T-Mobile Android 6.0.1 PACMAN Marshmallow Custom Firmware

PAC-ROM is making a comeback with their latest custom firmware based on the latest Android 6.0.1 Marshmallow. This ROM have all the basic features that PAC-ROM offers with the addition of Android Marshmallow. This ROM is still in its alpha stages so some bugs might show up. If interested in Android 6.0.1 for other phones, check out our new Custom ROMs section. You can update T-Mobile Galaxy S3 SGH-T999 to PACMAN Android 6.0.1 Marshmallow custom firmware using the tutorial below. This is not an official release by Samsung, but just a custom ROM which would require a custom recovery like ClockworkMod […]

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Install Android 6.0.1 Slim6 on T-Mobile Galaxy S3 T999 Marshmallow Custom ROM

Slim6 is a new ROM for T-Mobile Galaxy S3 T999 that supports Android 6.0.1 Marshmallow. T-Mobile Galaxy S3 T999 won’t get Android 6.0.1 Marshmallow officially but all thanks to the awesome unofficial development teams, you can enjoy the latest Android OS on this device as well. This ROM is simply pure Android experience without any other non-sense features. This ROM is still in Alpha stage but still a great ROM to play with. If interested in Android 6.0.1 for other phones, check out our new Custom ROMs section. You can update T-Mobile Galaxy S3 SGH-T999 to Slim6 Android 6.0.1 Marshmallow custom […]

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Install Android 6.0.1 OctOS on T-Mobile Galaxy S3 T999 Marshmallow Custom ROM

Team OctOS proudly presents their latest Android 6.0.1 Marshmallow based custom firmware for T-Mobile Galaxy S3 T999. This custom firmware contains all of the features for which OctOS is known for plus there are a couple more Android 6.0.1 exclusive features. Moreover, this is a weekly ROM so some bugs may show up and we expect that these bugs will be completely rectified in the final version. If interested in Android 6.0.1 for other phones, check out our new Custom ROMs section. You can update T-Mobile Galaxy S3 SGH-T999 to OctOS Android 6.0.1 Marshmallow custom firmware using the tutorial below. This […]

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Update T-Mobile Galaxy S3 T999 to Android 6.0.1 CM13 Marshmallow Custom ROM

This is yet another unofficial CM13 custom firmware for T-Mobile Galaxy S3 I9300 . This is your best bet to get the latest Android 6.0.1 on your T-Mobile Galaxy S3 I9300 because this device won’t be getting an official Marshmallow update firmware. This ROM is still in its ALPHA stage and some features are not fully functional and some bugs are likely to show up which we believe will be rectified in the final version of this custom firmware. If interested in Android 6.0.1 for other phones, check out our new Custom ROMs section. You can update T-Mobile Galaxy S3 SGH-T999 […]

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Update T-Mobile Galaxy S3 T999 to Android 5.1.1 OctOS Lollipop Custom Firmware

OctOS is a brand new emerging custom firmware and now it finally lands on T-Mobile Galaxy S3 T999. This custom firmware is filled with a lot of tweaks and enhancements making it extremely stable. Moreover, it runs swiftly on T-Mobile Galaxy S3 T999 with zero slow downs. There is a theme engine as well in case you want to change the visuals of your phone. If interested in Android 5.1.1 for other phones, check out our new Custom ROMs section. You can update T-Mobile Galaxy S3 SGH-T999 to OctOS Android 5.1.1 Lollipop custom firmware using the tutorial below. This is […]

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