XOSP ROM for T-Mobile LG G3! [Android 6.0.1 Marshmallow]


For those of you looking for a solid Android 6.0.1 Marshmallow ROM for your T-Mobile LG G3 D851, definitely check out the XOSP ROM.

XOSP, short for “Xperia Open Source Project”, is a custom ROM that aims to bring users Xperia UI/apps/features on top of CyanogenMod ROM.  For those of you who like Sony everything, this may be the perfect ROM for you as it comes loaded with Xperia Z5 launcher, apps, and theme.   Of course, even if you don’t appreciate the Xperia stuff, the XOSP ROM performs flawless in terms of great performance and battery life.


If you need customization, the XOSP ROM offers a nice set of customization options under “XOSP Settings” in your Settings menu.  The customization isn’t like Resurrection Remix but there’s enough useful tweaks to get you going.


Of course, my favorite feature is the “On-The-Go” mode, which was a feature that become popular back with KitKat custom ROMs.  While many custom ROMs have omitted this cool feature, the XOSP ROM has it so you can go walking around New York City and use your phone while being able to see through your phone.  Very neat feature so definitely try it out if you live in a urban city and commute to work.


Performance is excellent with this ROM, you will find zippy speeds for doing everyday stuff and Antutu scores are off the charts for an LG G3.

LG G3 Antutu Score on Antutu with Android 6.0.1 Marshmallow: 47,634.


Overall, XOSP ROM is a really fun ROM to give your T-Mobile LG G3 the heavily-needed make-over and a fresh upgrade to Android 6.0.1 Marshmallow so you can use your phone with the latest and best.  Definitely check it out if this is your cup of tea and do let me know what you think!

Notes on Camera: 1080P video recording max for both front and back.


Download XOSP ROM for T-Mobile LG G3

Download Android 6.0 Marshmallow Gapps

ROM Installation Instructions:

Please see our FAILPROOF method on installing Android 6.0 Marshmallow ROM using TWRP! And also PLEASE make a backup ROM beforehand, see our backup ROM guide for TWRP recovery.

Credits – Get.CM <— Please donate to the developers of these ROMs or hit Thanks button on XDA if you like it, thx!


Q: My 3G/4G LTE data is not working!!!
A: See How to Fix 3G/4G LTE data by Manually Setting APN on Android!

Q: I have no Play Store!
A: Make sure you install Gapps zip file in TWRP Recovery!!!  Download link in this post above.


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