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LG G3 is finally being updated to Marshmallow on AT&T

AT&T is rolling out Marshmallow for the LG G3 in the U.S. We've received a handful of tips from owners who have received the update notification, which then bumped their respective handsets up to Android 6.0. Thankfully the wait is finally over and you should receive a similar alert on your AT&T G3 soon enough.

LG G3

If you haven't yet received the update alert, be sure to give it a number of hours to fully propagate through the system. You can always perform a manual update check by heading into Settings, About phone and check for update.

We can't see any mention of Marshmallow for the LG G3 on AT&T's support website, so this could just be the start of the rollout and we may have a little while to go before everyone on the network receives the sweet release.

Thanks to everyone who tipped us!

79 Comments
  • Who cares... Posted via the Android Central App
  • Not you obviously....
    Now, shove that negativity up your bum and go somewhere else. CB might be a place for you, they like to be negative on everything what is not BB. posted with nokia 3310
  • Did u just tell him to go to Castle Black? Posted via the Android Central App
  • Crack berry. Posted via the Android Central App
  • Oh. I have GoT fever u have to pardon me Posted via the Android Central App
  • Lol Posted via the Android Central App
  • Probably owners of an ATT G3... I have a couple friends still rocking them, I am sure they will be hyped.
  • ...about your opinion...
  • Must be a note 4 owner. Posted via the Android Central App
  • T-Mobile LG G3 is getting now Android 6.0 Marshmallow as well Posted via the Android Central App on my LG V10
  • Really?
  • I'm not seeing any update, Tmobile in Alabama.
  • Might be the last software update for the G3. Posted with ❤Love❤
  • Correction, *is* the last update. Posted via the Android Central App
  • Still not terrible for a model that is now, what, three phones back? G5, V10, G4...
  • And still no release for Samsung models. Posted via the Android Central App
  • Yeah. I'm surprised I'm getting the update before my wife on her Samsung.
  • Yet note 5 sits on lollipop still. Come on Att Posted via the Android Central App
  • Exactly.... This is ridiculous Posted via the Android Central App
  • That is ridiculous. Posted with my LG G4 6.0 via the Android Central App
  • Damn carriers From my AT&T Note 5 paired with my larger Asus Zenwatch 2
  • Exactly Posted via the Android Central App on ATT NOTE 4
  • Wow really? And I thought Alcatel was bad with the Idol 3.. Posted via the Android Central App
  • Came here to say this. It's ridiculous Posted via the Android Central App
  • I got tired of waiting and went to Sam Mobile and flashed MM. The carrier's are dragging their heels too much with the Note 5. Posted via the Android Central App
  • Link please... Posted via the Android Central App
  • http://www.sammobile.com/firmwares/ Posted via the Android Central App
  • Awesome. I was resigned to thinking it would be left out of being updated. I'll update tonight!
  • Update done! It's was a little cumbersome for sure. After first reboot I didn't have a Google Play app, yuck. Lay it settle for a bit. Second reboot did the trick. All apps are working smoothly. A few updates do to 6.0 now. Like the changes, of course I'm only 2 hours into it.
  • Same story here. I'm happy now. Looks like it fixed the "Android.process.acore has stopped" problem I have been having for the past 2 months. AT&T, Chicago area.
  • Gives you an idea of how long AT&T has had it since the security patch is from March while many of the other Marshmallow updates for other devices have been the April Security Patch.
  • So what about Samsung note 5?. They don't planning to upgrade it?. Posted via the Android Central App
  • Note 4 got a security update yesterday. That may not be a good sign. AT&T Galaxy Note 4
  • I didn't get one Posted via the Android Central App on ATT NOTE 4
  • Check again, the file weighed in at around 60 MB, and the build # is XXXXXXXOI4 AT&T Galaxy Note 4
  • The note 4 will be getting MM sooner or later Posted via the Android Central App
  • Later rather than sooner :-( Posted via the Android Central App
  • WTF, AT&T? The Note 5 still hasn't gotten Marshmallow, but the 3 year old G3 has it? This is ridiculous. Posted via the Android Central App
  • I know right! From my AT&T Note 5 paired with my larger Asus Zenwatch 2
  • G3 isn't 3 years old? Or am I missing something? AT&T Galaxy Note 4
  • 2 years
  • Still getting update yesterday on Note 4 for Lollipop. AT&T is world's worse for updates. None for its Samsung phones as yet. S5 or S6
  • Bas-ackwards Posted via the Android Central App
  • I agree! Happy for the LG people. But come on AT&T! Posted via the Android Central App
  • Welcome to the world of AT&T. Posted via the Android Central App
  • Still waiting for it over here on Sprint...
  • Sadly, yes. Still waiting.
  • Omg note 5 owners going bonkers. Posted via the Android Central App
  • Cyanogenmod 13 for LG G3? Posted via the Android Central App
  • As a Note 5 owner I just tweeted Samsung and At&t about this. Utter and complete bull crap. Posted via the Android Central App
  • Own a AT&T S6 Edge Plus - still waiting for MM too. Inexcusable. Posted via the Android Central App
  • I agree 100%. I have an edge plus as well and I don't see any reason for the hold up with MM as nearly every other carrier already pushed out MM for these devices Posted via the Android Central App
  • Just yesterday I was searching the forums (in vain) for any hopes that my G3 wouldn't be the latest in a long string of devices to only get 1 update then be forgotten. Looks like I'll get TWO whole updates since owning this. Twice as many as usual, if you choose to look at it that way. No update available in Houston as of 10AM CDT though.
  • If your G3 is running great with the OS you got don't be in a hurry to get MM.Take it from a G4 owner who had his phone bricked by the MM Upgrade. I writing this from my replacment LGG4. Posted via the Android Central App
  • How in the world does this happen to some people? Posted via the Android Central App
  • Damn I would be really butt hurt if I was a note 5 owner, but I'm only a lil butt hurt since I only own a note 4. Great job Samsung and at&t Posted via the Android Central App
  • Love my lg g3. But, I'm on Sprint.
    Any word when we may get ours? Also, I'm rooted but do not use ASOP roms because of loosing lg camera apk. So waiting for a stock Marshmallow rom is something I've been excited for. Does anyone know if this update for AT&T will allow a 'easy' build that will be compatible for sprint lg g3 ls990 roms? Thanks for any insight Posted via the Android Central App
  • Happy for G3 owners but WTF AT&T!!! The G3 is 2 yrs old and NONE of your 1 year old Samsung flagships ( S6 ,S6 edge, S6 edge+, and Note 5) have been updated. This is well beyond unacceptable especially with the "thoroughly testing" excuse which is a flat out lie!
  • Made my G3 like a brand new phone with the upgraded 4.0 UX. Adaptable storage is working. New advanced messaging features similar to imessage. So many little things, I've been digging for about 4 hrs now just to discover all the changes. Also a video on YouTube showing most changes. Posted via the Android Central App
  • What advanced messaging featureds? Posted via the Android Central App
  • It said now you have 'read receipt' functionality and can see when someone is replying. You can turn off read receipts also. Click the gallery link I just posted. Pics of it all. This is for LG messenger app. Posted via the Android Central App
  • Oh and video calling in the dialer app. Posted via the Android Central App
  • https://photos.google.com/share/AF1QipMAZlRawN-FbcMEFMKWapNUtoP3dxmPDyeC... G3 6.0 screenshot gallery Posted via the Android Central App
  • But AT&T sill has not released Marshmallow for Samsung phones as other carriers have. Never buy another AT&T phone.
  • Still waiting for Marshmallow on the HTC M9 on AT&T as well.... Beyond frustrating. Every other carrier is well past that stage. Posted via the Android Central App
  • What the F*** with LG can't they just be polite to make it up for the late release and provide 6.0.1??? To hell with carriers Posted via the Android Central App
  • Got my marshmallow last night. Posted via the Android Central App via my LG G3
  • anyone else find battery life worse on their g3 with marshmallow update? Posted via the Android Central App
  • I have had many problems with the marshmallow update. Battery life is one, it will say I have no SIM card when I obviously do and the g3 also glitches and blacks out and won't allow me to use it and I have to keep pressing the back on button until it decides it wants to work again and it also overheats. So upset with the update. I actually liked the phone before.
  • Inconceivable. Posted via the Android Central App
  • While my Note 5 is still on 5.1.1. WTF AT&T. This is my last carrier branded phone. Posted via the Android Central App on the Galaxy Note 5
  • Wow even the g3 got it before my s6 Posted via the Android Central App
  • I actually sold my wife's Xperia Z2 and mine as well shortly after "upgrading" to the GS6 Edge+ on AT&T. The Z2 is now on Marshmallow on our GS6 Edge+s are still on Lollipop. I will never make the mistake of buying from a carrier again. Posted via the Android Central App
  • Been waiting such a long time for this. Just completed the upgrade and everything is working flawlessly. They definitely made some very nice improvements in this release. Really happy with it!
  • The G3 before the G Flex 2, what in the heck kind of update path is LG / ATT running here?
  • First HUGE issue, for me anyway. Garmin Connect will not work with ANY LG device per Garmin support. I own a Vivoactive that I really enjoy, golf GPS being the main reason I got it for a really good price.
    Garmin started that ANY other manufacturer with MM has no issues.
    Battery life after 2 days sucks also. Giving it more time on that one, for now...
  • I have a problem well... not really a problem but it kinda annoys me, i just want to know if anyone else has the same issue. When you input your pin # to unlock your phone, there is a slight lag when entering numbers. Anyway to fix that? Running on LG G3 AT&T. Posted via the Android Central App
  • May 3rd and still nothing. My G3 is my backup phone so not a huge deal but "Ok Google" suddenly stopped working on it. I'm hoping the M update fixes that. I still use my G3 sans the SIM, for general WiFi only stuff (which is a lot actually). Come on AT&T get the lead out.
  • Nice! Just in time, I just bricked my phone playing with CM13 and decided to go stock for a little, the camera alone is worth it for me.