I currently am in the process of trying to root an Android smartphone with the following device info:

Device Model: Samsung-SAMSUNG-SM-G900A
Android Version: 5.1.1
Build Number: LMY47X.G900AUCS4CPA3

While I have attempted to use all of the following products, they all failed to root, leaving a message that my device was "Not Supported":

My Questions:

  1. Given these device stats, is there ANY way for me to root my device?
  2. If yes, how can I go about it?
  3. If no, why not?
  • Link to OneClickRoot: search4roots.com/download
    – user171585
    Jun 15, 2016 at 2:07
  • This question was copied directly from superuser.com/questions/1089319/can-this-android-be-rooted , as per the requests of the Super User community.
    – user171585
    Jun 15, 2016 at 2:08
  • 1
    Based on a thread on AndroidCentral, seems AT&T locked it, and no one has ever succeed in rooting it since then.
    – Andrew T.
    Jun 15, 2016 at 7:11
  • AndrewT so there's absolutely no hope of hacking past their lockout, then?
    – user171585
    Jun 15, 2016 at 11:45
  • I'm afraid not. Compared to XDA forum, this community doesn't have much expertise on rooting every variance of Android device. If XDA, which I've known as the biggest Android modding/rooting community, haven't done it, then I'm afraid it's really impossible. Hopefully someone can prove me wrong though.
    – Andrew T.
    Jun 15, 2016 at 11:53

1 Answer 1


As in the comment by @AndrewT., it appears that AT&T have locked the device against rooting (corrected the exploits used by these one-click root solutions back with Android 5.0).

From the link in the comment:

Emphasis and comments mine

...the fact remains that AT&T's Android 4.4.4, released in 2014, and Android 5.0 and 5.1.1, released in 2015, have all been unrootable and no-one in the worldwide rooting community has found a root method apart from downgrading to the AT&T, Android 4.4.2, NCE, firmware/kernel... [to get] an exploit that AT&T closed off almost year ago with Android 5.0. Make no mistake, this is not Google or Samsung preventing you from rooting... it is all down to your carriers, AT&T and Verizon.

This post appears to be from a reputed member of their community, so we can be reasonably assured that even the great people at XDA-Developers (AT&T SGS5 thread here) have not managed to root this particular device (see here).

Hence, we can say that as of now there is no way to root this particular device (AT&T Samsung Galaxy S5) on this particular Android version (5.1).

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