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Questions tagged [superuser]

Superuser (also available as Superuser Elite) is an Android app that manages what apps on your rooted device have access to su i.e. which apps can run under the root account and thereby have full access to the system.

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32
votes
2answers
80k views

What exactly is superuser.apk and su?

I've done a lot of reading into rooting of Android devices. I really want to know exactly what is going on at each step before I commit to the process. I'm a little confused as to where the ...
13
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1answer
43k views

Difference between installing SuperSU using Play Store versus a custom recovery that installs it from a file?

I see that some rooting guides say that rooting involves: Download a SuperSU as a zip file that would be accessible to the phone (e.g. the sdcard). Unlock the phone's bootloader. Booting into a "...
9
votes
2answers
25k views

What is the difference between Superuser from ChainsDD and Superuser from ClockworkMod?

A while ago I rooted my LG Optimus Slider. The process installed Superuser from ChainsDD. Now I see that there is another Superuser from ClockworkMod, developed by Koush. What is the difference ...
8
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2answers
50k views

SuperUser doesn't give/prompt root access

I was trying to move GoogleMaps on SD-Cards using Link2SD. When I tried to do so I got a message stating Link2SD could not obtain root access. if you have root access make sure you respond 'Allow'...
8
votes
1answer
2k views

How does CF-Autoroot work?

What's the theory behind how CF-autoroot is able to root android devices? I'm wondering on what techniques it used to run su? Does it use a custom/patched Linux kernel? Or it is based on local root ...
7
votes
1answer
2k views

Why can't I use su to run under another app's permissions?

It's well-known that every Android app is its own user. I have Android Terminal Emulator installed as user u0_a5. u0_a5@android:/ $ whoami u0_a5 u0_a5@android:/ $ groups u0_a5 sdcard_rw sdcard_r ...
6
votes
1answer
2k views

How does SuperSu provide root privilege?

Has a write-up ever been released on exactly how SuperSu works? After searching around for a while I found mostly guides on how to use the app, not the implementation details. I did, however, find ...
5
votes
2answers
2k views

Is kernel mode of operating system and root permissions in android same thing?

As written in book of Peter Baer Galvin's Operating System Concepts , there are two modes of operation - 1.user mode 2.kernel mode So, my question is when we root our android do we alter the ...
5
votes
2answers
37k views

Installing SuperSU — I found a binary problem

Hi I am following Android Central's guide to root my HTC One Mini. I got to this part: After installing the Custom Recovery, Your phone is now ready to get root access! Step 1: Connect your ...
5
votes
1answer
5k views

What is the difference between Android user app with root access and a system app

The answer I am looking for is in the aspect of permissions. Can a system app do everything? Can a user app with root access (on rooted device) do everything? If so, are they the same? For example ...
4
votes
2answers
4k views

SuperSU vs Root

I have seen two methods, which claim that they root an Android device, that I don't know the difference of. Method 1 is as easy as installing the SuperSU from Google Play. Method 2 is going ...
4
votes
1answer
1k views

Nexus 4: Lost superuser rights after an update to 4.2.1 - how can I get them back?

A couple of weeks ago, my rooted Nexus 4 was updated from 4.2 to 4.2.1. Now it still seems to be unlocked (open lock symbol while booting), but I've lost my Superuser privileges. Is there any way I ...
4
votes
1answer
2k views

Accidentally deleted superuser from CyanogenMod installation. How can I re-install superuser again?

I have rooted galaxy s3, but I somehow deleted superuser. I still have CWM, and my phone can boot into download mode. Am I able to flash CyanogenMod without bricking my phone?
4
votes
2answers
11k views

Android System [UID] 1000 Root Permission Request

Is Android System [UID] in your list of SU Root Permissions? I just reloaded the stock rom then installed SuperSU (otherwise blank system) Upon the next restart, one of the permission request that ...
4
votes
2answers
7k views

Hide Superuser?

There are many apps out there that will hide your root su file and this seems to work well enough, but none of them are capable of hiding the Superuser application, not even 'Hide My Root' which ...
4
votes
1answer
8k views

How can I change the app for managing root access from SuperSU to Superuser?

I used a rooting package on my Galaxy S4 which installed SuperSU. Howvever, I preferred to use SuperUser, so I removed SuperSU and installed SuperUser. Now the apps that normally request root do not ...
3
votes
1answer
20k views

adb shell su: permission denied

I was trying to unlock my android phone by adb installed. I tried to followed these steps: adb devices adb shell cd data/system su rm *.key But when I typed and enter su, it's showing permission ...
3
votes
1answer
6k views

What is Ghost Mode of Superuser Elite?

Superuser Elite (paid) provides a premium-exclusive feature: Ghost Mode! What is it? As I haven't purchased it, I don't have option to test it..
3
votes
1answer
2k views

Superuser not prompting

I recently installed ICS(Android 4) on my Samsung Galaxy S, and it seems that in the process my superuser app broke. Everything went fine, my phone is working better than ever, but when an app ...
3
votes
3answers
13k views

How to use dirty cow exploit?

I got Sony m4 aqua with locked bootloader, android 6.01 and july 1 2016 security patch, no DM verity... I would like to freeze few factory apps via adb's pm disable command (or any other way possible)....
3
votes
1answer
29k views

The SU binary must be updated

Xiaomi redmi 2 runs MIUI 6.2.4.0(KHJCNBK) I ran a zip file in CWM, and had a success done!: Then installed SuperSU from google play, it wanted to update binary, so I clicked normal. It said failed ...
3
votes
1answer
35k views

The easiest way to root a Moto G (XT1032) Android v. 5.0.2

I have just rooted a samsung Lite 3 tablet...and it was simple. Really simple. Used Odin to install CWM, then installed a superuser app from a zip file. Really straightforward. So I decided to look ...
3
votes
3answers
12k views

Rooting Nexus 7 - SuperSU Binary Update Installation Failed

Can someone please help me find the correct SU binary for this device? I am trying to install the SU binary for SuperSU, and I get an installation failed every time. I have been looking for ...
3
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0answers
1k views

Rooting/unlocking Android Nexus One with broken power button using Linux terminal tools

I am attempting to get Cyanogenmod onto my Nexus One, but am running into far more problems than expected. The information on rooting Android devices seems heavily fragmented across the web and the ...
2
votes
2answers
9k views

Stuck on “verification fail” while Rooting Moto G 3rd gen

I am trying to root my moto g 3rd gen. I am following this guide: http://theunlockr.com/2015/09/09/how-to-root-the-motorola-moto-g-3rd-gen/ I am completely stuck on Step 7: installing SuperSu on the ...
2
votes
2answers
5k views

ADB 'su: permission denied' in recovery mode on rooted device

ADB 'su' command returns 'su: permission denied' on a fully rooted device in recovery mode. I can modify folders and files that require root access on phone (when it's booted). ADB also works when it'...
2
votes
1answer
2k views

What pros would upgrading to Superuser Elite bring?

I somewhat understand what Superuser does, but I'm curious if upgrading to the Elite version is a good idea... What pros are there? Does upgrading provide any additional features?
2
votes
1answer
620 views

How to grant an app root access without GUI interaction?

I'm trying to update my APN settings using: adb shell "su -c 'content update --uri content://telephony/carriers --bind name:s:\""SDR"\" --bind apn:s:"SDR-internet"'" The first time I run this ...
2
votes
2answers
674 views

Error in Galaxy tab a: 'Unable to restart your device. Verification failed' after supersu

I own a Galaxy tab a 10.1 with s pen (2016). I flashed via odin, twrp 3.1.1.0 and the system booted fine. Then I flashed the last version of SuperSU and since then the system doesn't turn on and I get ...
2
votes
1answer
2k views

SuperSu update binary error

I have a lg optimus g pro f240 running on android os version 4.4.2. I recently rooted the phone using the software in This thread I have installed SuperSu though each time I try and open it, it tells ...
2
votes
3answers
19k views

Root checkers tells me my phone is rooted but most root required apps warns me that the system denied to root. Why? Anyone, please explain it to me

Before my phone was said to be rooted by root checkers, I tried many rooting apps, both Android and PC based. The first significant change which happened occurred when I first installed and used the ...
2
votes
0answers
546 views

adb shell superuser access without approve from phone

I'm running MIUI 3.9.27 on my HTC Desire S. I accidentally froze my miui launcher (com.miui.home) and after reboot, phone stuck on boot animation, but seems everything running except miuiHome. I ...
2
votes
4answers
14k views

Why has my Android become half-rooted?

I had rooted my Samsung Galaxy S 4G, and for some reason it seems to be only partially rooted now. What I mean by this is that while SuperUser is installed, apps such as BusyBox and Titanium Backup ...
1
vote
1answer
1k views

Can an app with root permission access another app data?

I have an rooted android phone and use root apps like greenify regularly. Recently i have installed my Bank application on my phone and the bank application is not allowing me to login as my phone is ...
1
vote
7answers
146k views

Root - How to remove one of the superuser app?

I rooted my phone a month ago and downloaded the SuperUser app yesterday. However, when I use the app SuperSU, it is not running and it said i need to update a file. I could not update it. What ...
1
vote
1answer
1k views

Installed CWM on note 2, but the phone is not rooted

I've used Heimdall 1.4.0 on my mac to install CWM 6.0.4.3 (file name: recovery-clockwork-6.0.4.3-n7100) on my Samsung Note 2 GT-N7100 with android 4.3, the installation went smooth with no issues. I ...
1
vote
2answers
18k views

SuperSU binaries won't install to my HTC One M8

I am following this guide to root my HTC One M8. I just need root, I don't need a custom ROM. I have gotten to step 7 (weaksauce). I can install weaksauce fine and it roots my device (at least, it ...
1
vote
1answer
374 views

Pervasive Kingroot app avoids uninstall

I managed to root my Verizon Samsung Galaxy Note 10.1 tablet with Kingroot, but I'd like to remove it and switch to using SuperSU (because of KingRoot's aggressive practices and somewhat shady ...
1
vote
1answer
7k views

Setting appropriate permissions on SU binary

I recently found a way to maintain root access on my android device using a dropbear SSH server that I modified to run at boot as root using init.d, a lil scripting magic & some config scripts I ...
1
vote
1answer
2k views

After “legitimately” rooting an HTC phone, how do I get SuperUser to work?

I went through HTC's official rooting steps which I've discovered is unusual because it means I didn't instantly start with a special rom that has SuperUser installed by default. I installed ...
1
vote
1answer
96 views

How to block network traffic going to a specific remote port?

Is there a way I could block a specific network port connection for a specific app in Android? My phone is rooted. I know iptables -I OUTPUT -p tcp --dport xx -j DROP but this blocks those ports for ...
1
vote
1answer
180 views

How to edit the list of reserved ports (under 1024) on Android?

Is it possible to edit list of reserved ports on Android (0 - 1023) to move lower port (under 1024) to higher port (equal or above 1024). My mobile phone is rooted and I want to use lower port. One ...
1
vote
3answers
28k views

Superuser app won't grant root acess anymore

I tried to do a backup a few days ago but TB just stucked on the "Asking root permissions" screen. And now, every app that needs root access doesn't work properly because root access is denied. My ...
1
vote
1answer
94 views

How does SuperSU check if a phone is rooted?

I have a rooted custom device (Android 8.0), I can use adb and run su and do whatever I want in the shell. But SuperSU or any other app cannot find root. I have made a symlink from /system/xbin/su to /...
1
vote
1answer
567 views

How to block TCP connections?

I have an app, a replica of a shooter game in Android. It is just for experimental use only, me and my friends are testing it. I need to block all TCP connections so I can test my security. But its ...
1
vote
1answer
75 views

How to wipe sdcard?

I want to wipe sdcard, but am not sure how best it should be done. usually wiping is done into device, for example: cat /dev/urandom > /dev/mydev The thing is that I don't find a device which is ...
1
vote
1answer
3k views

How do you get AdAway to update the hosts file on 7.1 Beta?

I'm trying to get Adaway to work on 7.1 beta on my Nexus 6P. Unfortunately, the flashable zip did not work to move the hosts out of system. Neither did the flashable hosts file. I tried some of the ...
1
vote
0answers
79 views

Samsung Galaxy S3 cannot be accessed by pc after root

I did this to my samsung galaxy s3 and it cannot be accessed by a pc using usb. Rooted android 4.2.2 using kingo root Installed TWRP Installed LiquidSmooth for galaxy s3 Installed GAPS Apparently ...
1
vote
1answer
485 views

How to install superuser HD2 rom on SD card

Usually I just install superuser.zip through recovery. But now nothing happens. I tried using TWRP both from NAND and from SD (latest version with F2FS support). I try to root this rom: SLIMLP LP5.1.1 ...
1
vote
0answers
4k views

How to root Doogee Voyager2 DG310 & other mt6582 Devices (permanently) with EngMode?

Using the Mediatek mt6582 SOC Engineering Mode available on the Doogee Voyager2 DG310, with the Debug option User2Root an adb daemon running as root becomes available temporarily. This will need USB ...