[Tutorial] How to Root the G850A (AT&T Galaxy Alpha)

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PopTartKing

Member
Jul 17, 2016
36
8
Huge thanks to vadosnake for discovering this :)!
It's been a wait of 2 years, and King root has finally achieved root on this device. This method was tested on the Lollipop firmware, and others have said it works on KitKat as well. To root the G850A, follow these steps:
1.) Download the two APKs provided below, which we'll need for later
2.) Enable Unknown Sources by going to Settings, then Security, and the option should be right there
3.) Now install KingRoot 4.81. A message will pop up saying that the app is malicious, but just click "Install Anyway"
4.) Now enter the King root app and click Root. The phone will reboot, but that is normal. Go back into the app again and the process should continue until it's complete. Voila, your phone is now rooted. However, we will be replacing KingRoot with SuperSU.
5.) Install the second APK called SuperSume. After it's done, click the big green button, give it root access, and it will replace KingRoot with SuperSU in 1 minute.
6.) Go into the Play Store and update SuperSU. After it's done updating, go into the app and it will pop up with a message saying to update the binaries. Click continue then "Normal". DO NOT CLICK TWRP/CWM, OR IT WILL SOFTBRICK YOUR DEVICE.
7.) After that., you're done. You now have root with SuperSU.

Please make sure to show this to AT&T Galaxy Alpha users. Especially developers, so we can get some roms ;)
 

Attachments

  • NewKingrootV4.81_C136_B245_xda_release_2016_02_29_105243.apk
    8.6 MB · Views: 16,949
  • darkslide.com.supersume-6.0-www.APK4Fun.com.apk
    9.1 MB · Views: 11,894
Last edited:

cqdiep

Senior Member
Jul 8, 2015
74
4
Did anyone try this? Why does King Root need internet access to root? I'm afraid to turn on the internet in case it tries to steal data.

Huge thanks to vadosnake for discovering this :)!
It's been a wait of 2 years, and King root has finally achieved root on this device. This method was tested on the Lollipop firmware, and others have said it works on KitKat as well. To root the G850A, follow these steps:
1.) Download the two APKs provided below, which we'll need for later
2.) Enable Unknown Sources by going to Settings, then Security, and the option should be right there
3.) Now install KingRoot 4.81. A message will pop up saying that the app is malicious, but just click "Install Anyway"
4.) Now enter the King root app and click Root. The phone will reboot, but that is normal. Go back into the app again and the process should continue until it's complete. Voila, your phone is now rooted. However, we will be replacing KingRoot with SuperSU.
5.) Install the second APK called SuperSume. After it's done, click the big green button, give it root access, and it will replace KingRoot with SuperSU in 1 minute.
6.) Go into the Play Store and update SuperSU. After it's done updating, go into the app and it will pop up with a message saying to update the binaries. Click continue then "Normal". DO NOT CLICK TWRP/CWM, OR IT WILL SOFTBRICK YOUR DEVICE.
7.) After that., you're done. You now have root with SuperSU.

Please make sure to show this to AT&T Galaxy Alpha users. Especially developers, so we can get some roms ;)
 

cqdiep

Senior Member
Jul 8, 2015
74
4
I got SuperSU to install, but it can't update the binaries. It says "Installation failed! Please reboot and try again." after trying to update the binaries. The Root Checker app did confirm that it was rooted.

It needs Internet access to search in their database for a root solution.
 

PopTartKing

Member
Jul 17, 2016
36
8
I got SuperSU to install, but it can't update the binaries. It says "Installation failed! Please reboot and try again." after trying to update the binaries. The Root Checker app did confirm that it was rooted.
For now, I tend to leave the app closed, and just wait until root prompts appear for root apps
 

zyphuris55

Senior Member
Aug 18, 2008
103
4
Schiller Park
No Luck

I just ran the included 4.8.1 and online 5.0.1 versions, neither worked. So I tried the 4.8.1 a few times (including restarts) and the Super-SuMe anyway, but it didn't do anything past "Preparing environment" for 20 minutes.

Additional note, the 4.8.1 seems to have problems in general. After trying to root and failing, it'll continue using 80% of my cpu on some other processes within it's directory (mostly Schrodinger).

I'm running Android 5.0.2 (G850AUCU1BOC7), Kernel 3.4.0-4486597, Build LRX22G. It's the last update ATT gave us.
 

mikevb

Member
Jan 9, 2017
28
4
OnePlus 3T
I just ran the included 4.8.1 and online 5.0.1 versions, neither worked. So I tried the 4.8.1 a few times (including restarts) and the Super-SuMe anyway, but it didn't do anything past "Preparing environment" for 20 minutes.

Additional note, the 4.8.1 seems to have problems in general. After trying to root and failing, it'll continue using 80% of my cpu on some other processes within it's directory (mostly Schrodinger).

I'm running Android 5.0.2 (G850AUCU1BOC7), Kernel 3.4.0-4486597, Build LRX22G. It's the last update ATT gave us.

Same, tried both 4.8.1 and 5.0.1, neither worked. Same android and baseband version as yours.
 

chrchcndy

New member
Jan 10, 2017
1
0
Thanks so much for this. I'm curious exactly which version of Lollipop on the g850a this was tested and working on? Was it specifically 5.0.1 or 5.0.2 something like that? I just want to make sure I can follow it exactly so it works.
 
G

GuestX0024

Guest
Well this is strange, I followed this exact tutorial about 1 month ago and everything worked fine, now the app just freezes and after 5 minutes gives off a "Root Fail" message. I'm still running v4.8.1 on the app and still running on the KitKat firmware. This makes no sense at all. :mad::mad::mad:

Edit: The phone is no longer supported by Kingroot :mad::mad:
 
Last edited:

PopTartKing

Member
Jul 17, 2016
36
8
Hey guys, sorry for not replying, my internet has been down for the past two weeks :(. It seems that everyone is having problems keeping root after a while. I might not be a developer, but here's my advice: Once root is obtained, do what you want to do (ie. change emojis or install ViperAudio), then don't touch the SuperSU app until some more skilled developers put this root to full use ;). I'm sorry for not being more useful, but I just want everyone to know that this device isn't dead. What we need right now is something like SafeStrap for some some-what custom roms.
 
G

GuestX0024

Guest
Hey guys, sorry for not replying, my internet has been down for the past two weeks :(. It seems that everyone is having problems keeping root after a while. I might not be a developer, but here's my advice: Once root is obtained, do what you want to do (ie. change emojis or install ViperAudio), then don't touch the SuperSU app until some more skilled developers put this root to full use ;). I'm sorry for not being more useful, but I just want everyone to know that this device isn't dead. What we need right now is something like SafeStrap for some some-what custom roms.

Yeah, Kingroot pulled support from it after people started using supersu-me to get supersu on their devices instead of kingroot. Well, to me, it sounds like a jealousy problem on Kingroots end. It's not like everyone is buying the pro version of the app. Their main source of money is ad revenue. They also pulled support from the Galaxy S5 and many other devices mainly because of people using supersu-me. Kingroot has got to get the stick that is in it's butt right now out ASAP. A 'friend' of mine literally sold his S5 because it couldn't be rooted anymore, and i'm thinking about selling my G850A because it can't be rooted anymore. :(
 
G

GuestX0024

Guest
Just to clarify this, there's absolutely no way on the internet that the G850A can be rooted, ever?

Not anymore. It only had root for like 1 month then Kingroot removed support, you can blame them. Unless someone is exploit something so we can have root back, there is no way to root this phone anymore. I know, it sucks, just like the Kingroot developers, but that's just life. :(
 

ma259

Member
Feb 21, 2014
33
6
Solution found!

Hi guys. I think I found the trick. Just disable Internet connection (Mobile data and WiFi) just before lunching kingroot app this would evade the app from "searching the best root solution" which is "nothing found".

I used the exact same files uploaded in the OP and it works great, including the supersume part.

Good luck.
 

babarjoya

Member
Oct 13, 2015
17
2
I'm very lucky to root my device. waited One year and 4 months and got the fruit of patience. Now I love my device. I have patched Tethering Provision. Now I can easily open hotspot.. no need of foxfi etc... ? Congratulations to those who got there device ROOOOTED.. ?
 

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Awais Malik

Senior Member
Apr 8, 2013
55
7
I'm very lucky to root my device. waited One year and 4 months and got the fruit of patience. Now I love my device. I have patched Tethering Provision. Now I can easily open hotspot.. no need of foxfi etc... Congratulations to those who got there device ROOOOTED..

Salam. Babar bhai hamen bhi bata den k kaise root kar lia ap ne. please :)
 

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  • 2
    Huge thanks to vadosnake for discovering this :)!
    It's been a wait of 2 years, and King root has finally achieved root on this device. This method was tested on the Lollipop firmware, and others have said it works on KitKat as well. To root the G850A, follow these steps:
    1.) Download the two APKs provided below, which we'll need for later
    2.) Enable Unknown Sources by going to Settings, then Security, and the option should be right there
    3.) Now install KingRoot 4.81. A message will pop up saying that the app is malicious, but just click "Install Anyway"
    4.) Now enter the King root app and click Root. The phone will reboot, but that is normal. Go back into the app again and the process should continue until it's complete. Voila, your phone is now rooted. However, we will be replacing KingRoot with SuperSU.
    5.) Install the second APK called SuperSume. After it's done, click the big green button, give it root access, and it will replace KingRoot with SuperSU in 1 minute.
    6.) Go into the Play Store and update SuperSU. After it's done updating, go into the app and it will pop up with a message saying to update the binaries. Click continue then "Normal". DO NOT CLICK TWRP/CWM, OR IT WILL SOFTBRICK YOUR DEVICE.
    7.) After that., you're done. You now have root with SuperSU.

    Please make sure to show this to AT&T Galaxy Alpha users. Especially developers, so we can get some roms ;)
    1
    I'm very lucky to root my device. waited One year and 4 months and got the fruit of patience. Now I love my device. I have patched Tethering Provision. Now I can easily open hotspot.. no need of foxfi etc... ? Congratulations to those who got there device ROOOOTED.. ?
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