Questions tagged [root-access]

For questions specifically requiring root permissions. If your issue is about rooting your device, use the 'rooting' tag instead; for unrooting, use the 'unrooting' tag.

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312
votes
3answers
479k views

I've rooted my phone. Now what? What do I gain from rooting?

This is a common question by those who have just rooted their phones. What apps, ROMs, benefits, etc. do I get from rooting? What should I be doing now?
170
votes
9answers
63k views

What is the difference between: Rooting, Jailbreak, ROM, Mod, etc.?

What is the difference between: Unlocking the bootloader (prerequisite for doing many, though not all, other things below) Rooting Jailbreaking ROM NAND and Nandroid Operating System Mod (e.g. ...
74
votes
4answers
322k views

How to start root shell with Android Studio?

I just installed Android Studio. How do I get into root shell on my phone? Or do I have to download ADB separately?
63
votes
2answers
393k views

How to mount /system rewritable or read-only? (RW/RO)

How can I mount the /system directory rewritable or read-only on my Android phone?
49
votes
7answers
175k views

Is there a way for me to run Adb shell as root without typing in 'su'?

Is there a way for me to run Adb shell as root without typing in su? I want to be able to have root access without going into the shell.
45
votes
1answer
13k views

How exactly does “root” work? Do all applications run as root on my phone after rooting?

I've been reading about rooting the phone, but I have some concept doubts: when you buy an Android phone from a carrier, you don't have "root" access. When you start your phone, does that mean a "user"...
38
votes
9answers
39k views

How can I tell if I have root?

I've been attempting to root my phone (Samsung Intercept M910, but that probably doesn't matter). How can I tell that I have actually, successfully gained root? I've run a few apps which require root,...
35
votes
2answers
90k views

What is the default Android Root Password?

What is the default password for the Android root account? Can I change the root password after rooting my android device by simply typing passwd? How does the rooting process work? If I use a "one ...
32
votes
2answers
84k 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 ...
30
votes
6answers
53k views

How to prevent applications from discovering my phone as being Rooted

I have to install an application that has discovered my device to be rooted. So this is a two part question. How did it discover in the first place that my phone has been rooted How to prevent the ...
24
votes
2answers
243k views

What do the terms “BL”, “AP”, “CP”, and “CSC” mean in Odin?

I'm trying to Use Odin to download a OS to my phone (Trying to put Raspbian. Raspbian runs on the raspberry pi which has an ARM processor my android phone also has one so hopefully it'l work.) (does ...
23
votes
3answers
39k views

Which filesystem does Android attach to the root directory?

I know that Android uses FAT32 for SD cards and mounts them via FUSE. But which FS is attached at /? Some kind of ext? ZFS?
22
votes
1answer
10k views

SELinux and chroot system call

TL; DR: This is a question about the final step, in a portable, developer-oriented rooting process, that works across all Android machines. It is not based on any exploit - it is something that we are ...
21
votes
1answer
11k views

Why are Zygote and Whatsapp asking for root?

Since yesterday, WhatsApp and Zygote have been asking for root permissions on my phone via supersu. Apparently zygote is a system app. Is this malware? Lookout scan came up clean.
21
votes
1answer
22k views

Manually switch from ART to Dalvik

I wanted to try out the new ART runtime, but didn't realize my custom ROM doesn't support it. So now I am getting recurring Force Closed messages after booting, and can't get through to the settings ...
21
votes
2answers
9k views

A rather complex wifi issue (android tablet)

Straight to the point. My wifi has not been working properly since after a few days after upgrading its firmware and android version. Issue description The issue is rather inconsistent. Wifi will ...
20
votes
6answers
46k views

Using SMB server without root access

I'm looking for a way for my HTC Hero (Android 2.1) so I can share the contents of my SD card and phone memory over the WiFi network like a regular Windows file share. I'd like one that does not ...
19
votes
4answers
109k views

Remove “No SIM Card in Phone” message

I recently changed to a newer phone and currently using my old android phone as a sort of "ipod". However, it always shows the message that there is no sim card. I know this is just an annoyance but ...
18
votes
3answers
60k views

how to mount /system as read/write in android?

cannot mount /system in android with following command, anyone has a solution for this? root@hwG7-UL20:/ # mount -o rw,remount,rw /system mount: Invalid argument 255|root@hwG7-UL20:/ # mount -o ...
16
votes
5answers
98k views

How can I execute command in the terminal as root?

How can I get root permissions in a terminal?
16
votes
4answers
44k views

How can I reduce screen brightness below the minimum without an app?

I have an Optimus Elite, and it has a minimum brightness setting. In certain apps, I can reduce the brightness below the safe minimum, but when I leave the app, the brightness is increased to the ...
15
votes
2answers
27k views

Why is root access required for a custom ROM?

I'd like to be clear, and as my question indicates, I'm very ignorant of mobile devices in general so my apologies if this is common knowledge. Say I want to install a custom ROM onto a device, then ...
15
votes
4answers
127k views

Why can't I get root access from shell?

> adb shell sh-4.1$ su Permission denied I have rooted my phone successfully. I know this because I'm able to install apps on SD card and I have a program called SD Maid that is able to operate ...
15
votes
1answer
6k views

How do I protect my phone from malicious apps once it is rooted?

I rooted my phone. Now if I use a Terminal Emulator such as Android Terminal Emulator, I noticed that I can can easily obtain root access without a password: $ id uid=10059(app_59) gid=10059(app_59) ...
14
votes
1answer
62k views

Root Android virtual device with Android 7.1.1

I'm using the official Android SDK with the Android Emulator to create a virtual Android 7.1.1 (x86). I need to test a number of things, amongst others, some applications require root access to the ...
14
votes
2answers
9k views

What permissions are granted to an app with device administration privileges?

Does a Device Administrator application have any/all permissions such as contacts, storage, etc.. ? It's not clear from developer.android.com device-admin whether or not these admin rights also imply ...
14
votes
1answer
439 views

Are there any Google devices that support capabilities in their default kernel?

If I systemless root (no modification done to /system partition) a Nexus device, would I be able to able to set capabilities on executables without changing the original kernel binary ? I often want ...
13
votes
1answer
6k views

Why are the rooting apps not working anymore?

A couple years ago, it was easy to root any device: Install KingRoot, KingoRoot, or a similar app, hit the large ROOT button, and let it do the rest. After 5 minutes or so, a green "Root Succeeded!" ...
13
votes
2answers
17k views

How to recover a deleted file from /data partition?

I factory reset my rooted Android M phone but now I realize that there was a file in the /data directory which I need. Is it possible to create an image (.img or something similar) of the /data ...
11
votes
1answer
6k views

How can I find out if my device uses FBE or FDE?

Assuming that I have full access (root if neccesary) to a device running vanilla Android 8.1, how can I know if it is using Full Disk Encryption or File Based Encryption?
11
votes
2answers
4k views

Systemless Root

Chainfire (the developer of SuperSU), has come up with a new style of rooting devices on Android 6.0 Marshmallow and above. This is "systemless" root, and is all the rage right now. So, just in case ...
11
votes
2answers
114k views

How to add root permission to some app by myself?

Is there any way that I intentionally grant root permission to some app? Not automatically via SuperSU when a specific app asks for root permission, but in a way to pick an app via some tool and grant ...
11
votes
1answer
1k views

Why are superuser permissions needed to acess /data partition?

The default account is normal user, and I used it to install Google Play Store APK (to /data). Then Google Play Store was opened using my current user's permissions, and it is used to download and ...
11
votes
2answers
12k views

Switch cameras in rooted device (between front and back)

My back camera has broken although the front camera is still working. Certain applications, such as WhatsApp web, only let you use the back camera to read the QR code. Is there a way to switch ...
10
votes
3answers
113k views

I'd like to run Termux as root: possible?

I'd like to have an SSH, HTTP and SMB server on standard ports on my phone. There's a way to run Termux as root and have the servers run on privileged ports? Running rooted Android 7.1 on an ...
10
votes
1answer
3k views

How to manually root a phone?

I want to learn how to root a android phone manually, I mean without any apps like KingRoot, dr.fone etc. I did not found any guides or information about it. (Background Information: I want to root a ...
10
votes
1answer
17k views

How to fix SELinux “avc: denied” errors when launching DNSCrypt as init.d script?

I've installed an unofficial lineage OS 14.1 ROM on my phone and i want to have dnscrypt used on boot by default. There is what i have done: Download arm binaries from: https://github.com/jedisct1/...
9
votes
1answer
3k views

Suspected malware on stock apps in a Mediatek mtk65* based phone

I have an old(2016) Mediatek mtk6580 chipset phone(non rooted/stock). Couple days back, I downloaded an app called "Apk extractor" from play store, and extracted the system apps to the ...
9
votes
7answers
28k views

Does access to logcat need root?

My device is already rooted, this is why I'm asking. Do you need root to monitor the logcat stream on the phone? If I ran the logcat command from within a Terminal on the phone, would that work?
9
votes
5answers
40k views

Need one-line adb shell su push & pull to access /data from Windows batch file

I wrote a Windows batch file that replaces Amazon lockscreen ads with user images on rooted kindle fire hd 7", 2013 (kfsowi). Just learned I botched the adb commands because I was running "...
9
votes
2answers
48k views

Enter recovery mode from command line

Does anyone know if there's a way to get an Android phone to reboot into recovery mode, from the Android command line? Note: I do NOT have adb access. I do NOT know the magic power-on sequence to ...
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 ...
9
votes
6answers
11k views

How to run a script on boot in CM12.1?

Most questions I can find related to this are dated 2011 and thereabouts, so perhaps it's not too surprising that things have changed since. I've tried a whole bunch of things, with no results ...
9
votes
4answers
28k views

How can I mount an ext4-formatted SD card with correct permissions (with root)?

I see some mentions here of creating an ext4-formatted SD card, but no guide. This closely-related question suggests there is no way to do it, but my question differs in that my phone is specifically ...
9
votes
1answer
2k views

Prevent upgrade to 4.3 on rooted 4.2.2. device

I have just rooted a Nexus 7 with Android 4.2.2. I now receive a notification for system upgrade to 4.3. I don't want to do this, probably ever, as I want to keep 4.2 for app testing purposes. In ...
8
votes
2answers
27k views

Android ADB connect to device with broken USB and no root

I've read through the thread below and come across 2 solutions for connecting a device with ADB. https://stackoverflow.com/questions/4893953/android-run-install-debug-applications-over-wifi/19940301#...
8
votes
2answers
51k 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 ...
8
votes
1answer
4k views

Adding cards to Android Pay on rooted device

As the new Android Pay app is now rolling out, I wanted to go ahead and get it set up on my device. Now, as many are finding out, rooted devices will receive the message "Android Pay cannot be ...
7
votes
3answers
42k views

Enable hotspot / tethering on Nexus 5X + 6P without a subscription plan? Root and no Root

Is there a way to enable hotspot / tethering for the Nexus 5X and 6P even if you don't have a subscription plan for it? How do you do it via rooted phone and a non-rooted phone?

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