[Q] Upgraded to 4.1.1 and lost rooting capability - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

I rooted my AT&T i747 with Android 4.0.4 a couple months ago and installed SuperSU as well and was working great. When I upgraded my phone to android 4.1.1 a few days ago I lost all rooting capabilities. My Titanium Backup Pro no longer has root access as well as my SuperSU and a couple of other apps that require it. I also have tried uninstalling SuperSU with no success.
Could I just reflash my i747 just like I did back on 4.0.4 to root it again or is there a way to correct the current root access? What would you recommend?
Thanks in advance!

If you took the official update then you have lost root. You just need to re root and you will be back in business.
Sent from my SGH-I747M using xda app-developers app

jbradbury said:
If you took the official update then you have lost root. You just need to re root and you will be back in business.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
I want to do it but this is what the app says on Google play...
"NOTICE: A SPECIAL PROCEDURE IS NEEDED FOR UNINSTALLATION. IF YOU DO NOT LIKE THE APP, DO *NOT* JUST UNINSTALL IT, YOU *WILL* LOSE ROOT.
Superuser access management runs through a so called "su binary". There can be only one of these at a time. So if you install SuperSU, your previous superuser access management solution will no longer operate. So if you want to switch back: (1) Open that application, and search for an option for it to install/update/replace the "su binary". (2) Confirm root-using apps are using the superuser solution you want. (3) Uninstall SuperSU."
Does that mean I will lose root for good if I just try to reroot it a second time without first uninstalling it? That is where I am having trouble as well. The app will not let me properly uninstall it from within the app.
Thanks.

SCADAman said:
I want to do it but this is what the app says on Google play...
"NOTICE: A SPECIAL PROCEDURE IS NEEDED FOR UNINSTALLATION. IF YOU DO NOT LIKE THE APP, DO *NOT* JUST UNINSTALL IT, YOU *WILL* LOSE ROOT.
Superuser access management runs through a so called "su binary". There can be only one of these at a time. So if you install SuperSU, your previous superuser access management solution will no longer operate. So if you want to switch back: (1) Open that application, and search for an option for it to install/update/replace the "su binary". (2) Confirm root-using apps are using the superuser solution you want. (3) Uninstall SuperSU."
Does that mean I will lose root for good if I just try to reroot it a second time without first uninstalling it? That is where I am having trouble as well. The app will not let me properly uninstall it from within the app.
Thanks.
Click to expand...
Click to collapse
That warning by Chainfire relates to the various other superuser shells out there (like superuser.apk, ROM-specific superuser shells). Wait, what's the shell? Let me explain:
OK, so having root means you have three folders/files available:
superSU.apk (the shell; it's an interface lets you allow certain apps access to the actual superuser files..think of it as the root gatekeeper..having it alone does not mean you're rooted...seems like you have this)
/system/xbin/su/ (folder with files SPECIFIC to SuperSU.apk...apps can ask superSU.apk to access these "root-enabling" files ...you lost this)
/system/bin/su (folder with files SPECIFIC to SuperSU.apk...apps can ask superSU.apk to access these "root-enabling" files...you lost this, too)
The latter two, the folders, are collectively referred as su binaries. His warning: if don't like using superSU.apk as your shell, do not simply uninstall superSU.apk. Why? I'm not totally sure, but I think it's because that will leave the su binaries, specific to his app! Then, when an app wants to ask for root, it doesn't know what the flip to do. It has to interact with the shell, but the shell is missing!
The special method to really remove root is:
creepyncrawly said:
You can remove root by using a root file explorer to remove /system/app/superuser, /system/bin/su and /system/xbin/su. After you reboot, you'll not longer be rooted.
Click to expand...
Click to collapse
OK, the "what is going on behind the scenes" is over. To get root back:
Basically, you need to replace the su binaries. But, the only way I know how is to replace all three of those parts. I'm pretty sure you're fine to "overwrite" the 1/3 of root you already have (SuperSU.apk). Thus, you have two main options:
1) Use CF AutoRoot (http://forum.xda-developers.com/showthread.php?t=1963790). It will temporarily flash a modified recovery, and then add those binaries and the SuperSU.apk, and then flash the stock recovery back, but it will trip the flash counter. Takes 30 seconds. Should be safe, because it will just overwrite the apk and add the su binaries. [I rooted this way; triangle away is cheap to reset the flash counter!]
2) Use Mr. Robinson's method (http://forum.xda-developers.com/showthread.php?t=1739426). This contain a /system image with all three aforementioned parts. Will take about 15 minutes, but will not trip the flash counter. As long as you're on stock firmware (which I think you are), this won't delete any apps/data.

I got it rooted again. Thanks for help guys. I just reinstalled the supersu.apk and the binary files and it's rooted once again. Whoo-hoo!

Related

Simplest way to remove unwanted system apps?

I want to keep the stock HTC factory ROM on the phone now. I want to remove some of the system apps that come preinstalled, that's all. Facebook, for example. What's the simplest way to do this?
Also, I want the OTA update to 2.2 when it comes, and I don't care if I lose root, so long as I can cherry-pick what programs are on my phone.
And I want a pony, too.
Seriously, isn't there an easy method to just kill a few apps that is noob-friendly?
Download estrongs file explorer, go into settings/root options/Select hiapk or cyanogenmod (whichever works, you will also be prompted to grant su permissions)/then mount.
Now you navigate to system/app and delete at will.
Sent from my PC36100 using XDA App
adelaney said:
Download estrongs file explorer, go into settings/root options/Select hiapk or cyanogenmod (whichever works, you will also be prompted to grant su permissions)/then mount.
Click to expand...
Click to collapse
Didn't work. Looks like root is required, plus a custom ROM flashed. Far too many steps to simply delete a preloaded system app. I'm running the stock HTC ROM. I suppose I can run Unrevoked3 to get root, but I have no interest in a custom ROM. I simply want the stock ROM with fewer apps. Thanks anyways...
adelaney said:
Download estrongs file explorer, go into settings/root options/Select hiapk or cyanogenmod (whichever works, you will also be prompted to grant su permissions)/then mount.
Now you navigate to system/app and delete at will.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
That doesn't work on the stock ROM
I would also like to remove some apps. I want to keep the stock ROM for now (tried some 2.2 and did not like them... I'll just wait for OTA) and I'm root. What are the posibilities?
Unrevoked only gives you root, you don't have to install a custom ROM. You could just root, keep the stock ROM and just delete whatever you want. Don't see much point in that though. I also hate FB, stock and all the rest but as long as you don't use them / sign in they don't do anything and the free space you gain will be useless.
Simply there is no way to remove system apps without root..
With root you can only do it in recovery by issuing adb commands or by simply deleting .apk files from a custom rom before you flash it.
edit: and i agree with pascanu no need, and you might just screw something up
So basically I have to get root access using something like Unrevoked3, then type in some commands (adb) in my computer, with the phone hooked up via USB, and delete the apps that way?
I can refer to one of the threads explaining how to use ADB, but a quick search tells me that I need to download & install the SDK to use it. Already we are getting way too complicated. Each solution I see involves downloading large files and installing software.
If this is the only way currently, than I can accept that. I have rooted phones and flashed ROMs before, and I am confident I could figure it out again if needed. I just don't want to bother now. I like the stock ROM from HTC on my Desire. All I want is control over exactly which apps live on my phone, just like I control which programs are on my PC. Imagine if you couldn't remove some toolbar or AOL from a new PC when you bought it? Scary, huh? That's where a lot of us are now.
Until it's easy and quick, I and the majority of users just won't bother. I'm still hoping it's possible, and if anyone can explain how to do it then please do.
Yes as i wrote there is no need for that, if you are going to root it should be because you want some of all the good stuff it comes with (wireless tether, a2sd, froyo, decent backup, custom theming etc.)
It is quite easy though.
I may know where you can get a pony..........

[Q] Bloatware Reappears on Restart

So I used Visionary to root my HTC Desire Z, checked that it was rooted with Android Terminal Emulator using su returning #
I then proceeded to delete all the .apk's of the bloatware in /system/app folder
Upon restart they reappeared. I've tried 3 different file managers and I also tried deleting their data folders in /data/data and now matter what I do they reappear on a restart.
Does this mean it is hard coded into the ROM? DO I have to wait for a permanent root and flash a new stock ROM minus the bloatware?
Anyone found a solution or maybe i'm doing it wrong...
This is another example of where we're miles behind the G2 forums. Check out the G2 ROM Dev forum, there is an app there to show how you can delete built-in apps and then they won't reappear.
But BE CAREFUL ! It will probably be the case that if you go down this road, you may have a problem with future OTA updates.
The reason it's not working with your current method is that you're not really deleting anything. Write access to the internal storage is not possible right now (it is being worked on intensively for the G2), so the phone is caching the file system and making it appear they've been deleted, but the internal storage hasn't been updated. So when you reboot, the app just comes back again. This is how come there's been a myth that the phone automatically "un-does" any changes and resets itself when you reboot - it's not really doing that, because you didn't make any permanent changes in the first place.
steviewevie said:
This is another example of where we're miles behind the G2 forums. Check out the G2 ROM Dev forum, there is an app there to show how you can delete built-in apps and then they won't reappear.
But BE CAREFUL ! It will probably be the case that if you go down this road, you may have a problem with future OTA updates.
The reason it's not working with your current method is that you're not really deleting anything. Write access to the internal storage is not possible right now (it is being worked on intensively for the G2), so the phone is caching the file system and making it appear they've been deleted, but the internal storage hasn't been updated. So when you reboot, the app just comes back again. This is how come there's been a myth that the phone automatically "un-does" any changes and resets itself when you reboot - it's not really doing that, because you didn't make any permanent changes in the first place.
Click to expand...
Click to collapse
Thanks for the explanation! Hmm yeah, I don't know if I want to start flashing roms or leave it stock because it's pretty decent stock. And I did hear that updating/upgrading to new OS's have problems is you delete the bloatware programs...
Thanks again
st1n6r4y said:
So I used Visionary to root my HTC Desire Z, checked that it was rooted with Android Terminal Emulator using su returning #
I then proceeded to delete all the .apk's of the bloatware in /system/app folder
Upon restart they reappeared. I've tried 3 different file managers and I also tried deleting their data folders in /data/data and now matter what I do they reappear on a restart.
Does this mean it is hard coded into the ROM? DO I have to wait for a permanent root and flash a new stock ROM minus the bloatware?
Anyone found a solution or maybe i'm doing it wrong...
Click to expand...
Click to collapse
try this method:
1. install VISIONary
2. install busybox
3. install titanium backup
4. run VISIONary
5. Run BusyBox
6. install busybox through the installer
7. run Titanium Back-up
8. find the app you don't want
9. press and hold and an a contextual menu will pop up and select the last option
or check our this link: http://android.modaco.com/content/h...move-applications-using-the-recovery-exploit/
i did it this way and have master reset many times and all the Bell Bloatware is gone, BUT... i had to repeat the steps 4 - 9 after each time, but the crapware is gone!
seattleboi1982 said:
try this method:
1. install VISIONary
2. install busybox
3. install titanium backup
4. run VISIONary
5. Run BusyBox
6. install busybox through the installer
7. run Titanium Back-up
8. find the app you don't want
9. press and hold and an a contextual menu will pop up and select the last option
or check our this link: http://android.modaco.com/content/h...move-applications-using-the-recovery-exploit/
i did it this way and have master reset many times and all the Bell Bloatware is gone, BUT... i had to repeat the steps 4 - 9 after each time, but the crapware is gone!
Click to expand...
Click to collapse
Cool thanks!
seattleboi1982 said:
try this method:
1. install VISIONary
2. install busybox
3. install titanium backup
4. run VISIONary
5. Run BusyBox
6. install busybox through the installer
7. run Titanium Back-up
8. find the app you don't want
9. press and hold and an a contextual menu will pop up and select the last option
or check our this link: http://android.modaco.com/content/h...move-applications-using-the-recovery-exploit/
i did it this way and have master reset many times and all the Bell Bloatware is gone, BUT... i had to repeat the steps 4 - 9 after each time, but the crapware is gone!
Click to expand...
Click to collapse
Tried this method. Everything works fine (rooted, Busybox installed), but when I try to pick the option to "Force remove app (by recovery exploit)" I get the error message "Cannot remove system app, Failed to locate apk file".
What am I doing wrong?
redpoint73 said:
Tried this method. Everything works fine (rooted, Busybox installed), but when I try to pick the option to "Force remove app (by recovery exploit)" I get the error message "Cannot remove system app, Failed to locate apk file".
What am I doing wrong?
Click to expand...
Click to collapse
Never mind, I figured it out. You need to have either S-OFF or CID unlock in order for this method to work. I was only rooted, and intentionally not S-OFF and SuperCID. I used the gfree method to S-OFF and SuperCID, and the above method of removing the bloatware seems to be working perfectly now.
redpoint73 said:
Never mind, I figured it out. You need to have either S-OFF or CID unlock in order for this method to work. I was only rooted, and intentionally not S-OFF and SuperCID. I used the gfree method to S-OFF and SuperCID, and the above method of removing the bloatware seems to be working perfectly now.
Click to expand...
Click to collapse
It was the S-OFF. Unless you have S-OFF, you still have write protection on the system and recovery partitions. So apps will appear to get deleted as the information is written to cache. But they'll come back on a reboot because the information was never written to (deleted from) permanent storage.
So if I'm rooted using Visionary and have S off using the gfree method but I never installed busybox.. What would be the best method? Can I just install busybox and install or would I need to do another method?
Sent from my HTC Vision using XDA App
Rickroller said:
So if I'm rooted using Visionary and have S off using the gfree method but I never installed busybox.. What would be the best method? Can I just install busybox and install or would I need to do another method?
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
Just install Busybox.
The above method worked great EXCEPT for one app: Kobo (e-reader). I've tried to force remove in Titanium Backup three times now, and also tried using the "regular" un-install option in Titanium Backup. Every time the phone reboots, Kobo is still there.
Any ideas?
I used an app called system app remover i think thats the name...not 100% suree...but i got it to get rid of wifi calling cuz im on roger and tmobile wifi calling wouldnt work so i tried the titanium back up method and it didnt work so i looked around and android underground had a download for the app and it removed the app and it went into an fc loop so i pulled the battery and it is gone and rom runs perfectly fine
Sent from my HTC DesireZed
SN4K3B1T3 said:
I used an app called system app remover i think thats the name...not 100% suree...but i got it to get rid of wifi calling cuz im on roger and tmobile wifi calling wouldnt work so i tried the titanium back up method and it didnt work so i looked around and android underground had a download for the app and it removed the app and it went into an fc loop so i pulled the battery and it is gone and rom runs perfectly fine
Sent from my HTC DesireZed
Click to expand...
Click to collapse
Using an app called Absolute System Root Tool has the feature to uninstall system apps, and this worked for me to remove Kobo.

[Q] Unroot a custom rom?

Hey All,
For Work I need to install the app Good for Enterprise so I can get my calendar and work email pushed to my phone. Unfortunately it is company policy that it be unrooted. Presumeably a security issue. Is it possible to unroot a custom rom? i'd rather not go back to stock for the simple reason of app storage. I love A2SD+ and being able to have as many apps as I want installed. Also nandroid backups, that would go away without root too wouldn;t it? Can I just remove the SU.apk? Will that suffice to be "unrooted"? Is that even possible?
Tweak_four17 said:
Hey All,
For Work I need to install the app Good for Enterprise so I can get my calendar and work email pushed to my phone. Unfortunately it is company policy that it be unrooted. Presumeably a security issue. Is it possible to unroot a custom rom? i'd rather not go back to stock for the simple reason of app storage. I love A2SD+ and being able to have as many apps as I want installed. Also nandroid backups, that would go away without root too wouldn;t it? Can I just remove the SU.apk? Will that suffice to be "unrooted"? Is that even possible?
Click to expand...
Click to collapse
If you want to unroot, you'll need to go back to stock.
The reason they want unrooted phones, is not so much a security issue, as it is they just don't understand or don't wish to deal with possible problems.
If you backup your apps and data you can run the official RUU, and it will put the original unrooted system to your phone. I don't know other method.
Here are the official ROMs: http://shipped-roms.com/index.php?category=android&model=Bravo
Removing the SU binaries will unroot you, I don't see the need as to why you have to be unrooted though.
apparently you can't use the new movie-rental feature of google's market, when you are rooted.
Is it possible to stick to a custom rom but unroot it, so that google recognises your phone as a not-rooted device and allows you to watch movies from market?
I don't need root-permissions every day - in fact I only need it for Titanium Backup, so deleting su-binaries and/or superuser.apk would be ok - but it must be possible to restore them (via recovery/adb) to run TB.
This probably isn't what google wants you to do since you can download the movie to watch later and if you have a working recovery you probably could get you hands on the downloaded files, but still - would be nice, if this was possible.
Easiest way to unroot and go back to stock is to stick a PB99IMG.zip on your sdcard, and turn your phone on with volume held down
How about this:
1) Go back to stock ROM via RUU
2) Install Good For Enterprise (I guess your IT department installs this, so they can check you are not rooted?)
3) ROOT the stock ROM using UnRevoked
4) Take a Titanium Backup of Good For Enterprise
5) Re-install your custom ROM
6) Restore the Titanium Backup of GfE
-> You have a rooted, custom ROM with GfE installed. And your company will never know!
madcr0w said:
Easiest way to unroot and go back to stock is to stick a PB99IMG.zip on your sdcard, and turn your phone on with volume held down
Click to expand...
Click to collapse
Congratulations for not reading the post. Here is your cookie.
Sent from my HTC Desire using XDA Premium App
Demonic idea
kuroneko007 said:
How about this:
1) Go back to stock ROM via RUU
2) Install Good For Enterprise (I guess your IT department installs this, so they can check you are not rooted?)
3) ROOT the stock ROM using UnRevoked
4) Take a Titanium Backup of Good For Enterprise
5) Re-install your custom ROM
6) Restore the Titanium Backup of GfE
-> You have a rooted, custom ROM with GfE installed. And your company will never know!
Click to expand...
Click to collapse
I like your idea mate! Hahahahahaha....
Edit: Bad boy! Bad bad boy! hahahahahahahaha....
kuroneko007 said:
How about this:
1) Go back to stock ROM via RUU
2) Install Good For Enterprise (I guess your IT department installs this, so they can check you are not rooted?)
3) ROOT the stock ROM using UnRevoked
4) Take a Titanium Backup of Good For Enterprise
5) Re-install your custom ROM
6) Restore the Titanium Backup of GfE
-> You have a rooted, custom ROM with GfE installed. And your company will never know!
Click to expand...
Click to collapse
Has anyone ever tested this?
Or why don't you just delete superuser via adb or android commander
good for enterprise checks for root access/ su every time it starts. It's not an issue of not being able to install the app. It's available for free on the market. The problem is when entering all your info and starting it up, it checks for SU.
I am guessing the best way around this is to install custom rom, set everything up that you need that requires SU/root. Then delete all the su/root related files. Then install Good.
Unfortunately I don't have a list of all the files that have to be deleted for this to work.
There have been reports that other users who have tried this method got it to work but the App stopped syncing after a few days.
List:
/system/app/superuser
/system/bin/su
Sent from my HTC Desire using Tapatalk
I tried this method, renamed the 2 files. It has been working for last 24 hours. I'll update again after a week if it still works..
Edit:
yep this works perfectly.
vvelumm said:
I tried this method, renamed the 2 files. It has been working for last 24 hours. I'll update again after a week if it still works..
Edit:
yep this works perfectly.
Click to expand...
Click to collapse
You renamed SU.apk to SU.apk.bak most likely...
What did you rename the libs file to?
vvelumm said:
good for enterprise checks for root access/ su every time it starts. It's not an issue of not being able to install the app. It's available for free on the market. The problem is when entering all your info and starting it up, it checks for SU.
I am guessing the best way around this is to install custom rom, set everything up that you need that requires SU/root. Then delete all the su/root related files. Then install Good.
Unfortunately I don't have a list of all the files that have to be deleted for this to work.
There have been reports that other users who have tried this method got it to work but the App stopped syncing after a few days.
Click to expand...
Click to collapse
I have rooted my HTC Salsa to get apps2sd which is great, but now my mobile banking app says it will not work on a rooted device, similar to your issue.
I am new to android modding, what commands do i need to enter where to rename the files you mention ?
Thanks in advance.
Mike
wont work good enterprises would more than likely check every time like sky go. you would have to removed a2sd command line i think and all su binarys ( and su.akp ( difficult as its normally a system app and once one of the su has been removed you dont have premition to remove the other/
and to the donunt who said ( the dont understand root) wanna cookie 0. basicly good enterprise is a secure web client for companys to send information to mobiles, i have it on my work (iphone) <<<< scummmy.. anyways as root gives to the option to do what ever you or anyone else wants with the phone in theory you could use that system to breack the law or for instance chaindd could possible put an update in to su that will take data from the company> for google videos ) well with root you can screen record ( basicly ) excuse the spelling im trying to find out how to un root and keep all of my system ui mods and themes and my rom ( proving difficult)
hey I know that this is based on a old post but I have a question did you ever find out how to unroot a custom rom that is pre-rooted?

Why do I keep losing root?

My Verizon GNex is rooted, I have CWM, superuser etc, even installed this rom, but I keep losing root after an hour or so. I use root explorer, open a terminal, su, do things, do it again in a few minutes and it suddenly won't log in as root.
When this happens, my wifi also craps out. It shows signal strength too low to connect when I'm standing next to the router. Reflashing CWM or superuser does nothing. Last night I wiped and went back to stock and it worked for a while, but I've found I can also flash that rom and it will work for a while and that is easier. Root survives multiple reboots but just stops working for no reason after a while.
Example: I flashed that rom this morning and rebooted 2-3 times, went to the mall and kept opening root explorer to see if root was working. I sat and watched my daughter play at the mall for nearly an hour. When she wanted something to drink, I checked and root was still working. I went to the store nearby, got a water, sat back down and no longer had root.
I'm not getting any OTA notification or anything, it just stops being rooted out of the blue.
Any ideas?
Darn, halfway down page two already and no replies...
same issue here
I'm glad I'm not the only one. How did you root?
followed this until step 5 http://forum.xda-developers.com/showthread.php?t=1392310
Me too. I used a different guide, but it looks like it was exactly same.
Do you use root explorer? I was only using it to check if I had root yesterday -it opens when rooted, doesn't when root is lost- and after losing root I noticed its battery usage was nearly as high as the displays although I had only opened it for 2 seconds several times.
Last night I rerouted before bed and didn't touch root explorer and im still rooted ten hours later. May not be related, and I could lose root at and time, but I was losing it every hour or two, so I'm starting to get optimistic that root explorer may have had something to do with it.
Sent from my Galaxy Nexus using Tapatalk
fubaya said:
Do you use root explorer? I was only using it to check if I had root yesterday -it opens when rooted, doesn't when root is lost- and after losing root I noticed its battery usage was nearly as high as the displays although I had only opened it for 2 seconds several times.
Last night I rerouted before bed and didn't touch root explorer and im still rooted ten hours later. May not be related, and I could lose root at and time, but I was losing it every hour or two, so I'm starting to get optimistic that root explorer may have had something to do with it.
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Haven't seen this specific issue much with the Galaxy Nexus yet. I had this problem 1.5 yrs ago with an older Samsung Android device though. Solution was a bit complex, but haven't seen this issue in a long while.
I know root can be a bit hidden from Android unless adb is connect or using a terminal application. For this reason, m root check application is generally a good program to run a simple diagnostic of the root configuration on the device.
The Pro version, 99 cents in the Market and free on XDA has a widget which will update at the interval you pick, 1-24 hrs with the root status and gives a more thoroughly diagnostic output of the system su binaries and their properties.
Hope that helps!
Try putting the su binary in /system/xbin. I lost root after the OTA update to ITL41F, but busybox in /system/xbin survived.
I have root checker and when I lose root, it still says everything is OK. Superuser logs also show that apps have been allowed, but the apps just don't get root. When it happens, everything loses root, terminals root explorer, titanium backup etc. even the superuser app can't update the su binary.
I still have root after 11+ hours (crossing fingers)
Sent from my Galaxy Nexus using Tapatalk
motopig said:
Try putting the su binary in /system/xbin. I lost root after the OTA update to ITL41F, but busybox in /system/xbin survived.
Click to expand...
Click to collapse
The su binary will have also remained after an OTA, same as busybox. The difference is their permissions. Every OTA re-sets the binary direction permissions as 755 stripping out the setuid attribute required by su, but not required by busybox.
This would explain why after using an OTA the user will lose "root" access but maintain busybox access. Both binaries persist, but the su binary loses the setuid attribute required to elevate access for root.
fubaya said:
I have root checker and when I lose root, it still says everything is OK. Superuser logs also show that apps have been allowed, but the apps just don't get root. When it happens, everything loses root, terminals root explorer, titanium backup etc. even the superuser app can't update the su binary.
I still have root after 11+ hours (crossing fingers)
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Well the key here, as I stated above, would be to see whether or not the su binary still has the setuid attribute and UID/GID set as root.
Any of those changes could remove the ability of the su binary to esclate permissions as root. In theory, any application which has been granted root access through Superuser, could remove root access for the whole system.
I can't imagine any reason why a developer would intentionally write an application to do that under a different title which you would be using.
Hope the technical details help!
I never had an OTA update after rooting, at least there were no notifications or anything. I do agree it acted as if the binary permissions got screwed up somehow, I don't know why I didn't check. Reflashing the su.zip didn't help. I assume flashing would set the permissions.
Well, nearly 24 hours and I still have root so, whatever it was, I'm happy now.
I just realized i no longer have root and i did the ota update recently. Problem is i cant get root back no matter what i try. I reinstalled the latest superuser from market with no luck. Any advice?
I forgot to mention i am completly stock on 4.0.1 and ITL41F. All i did with this phone is unlock the bootloader and the guide i used i think pdanet put SU apk automatically installed. My apps like root explorer all showed they did have root access. But now i tried to use root explorer and it claimed it had access, but couldnt get root.
My SU apk was updated to latest from the market. I just uninstalled the update and still no luck. Reinstall update and still no luck..
When it happened to me, the only thing that worked was to reflash the rom and go through the rooting process again. There is a thread in the development section about going back to stock where you can find the stock rom. you'll lose apps and things and may want to back them up first.
You could probably flash a new rom instead. I don't remember which one it was, but I was using a 4.0 rom that had su and didn't require wiping anything so reflashing was painless.
Sent from my Galaxy Nexus
Crap ok thanks. I cant backup anything with titanium cause it cant get root, so i guess i jyst have to lose everything. Might as well go with one of the roms i guess. I kinda was just enjoying stock with root.
Oh the other problem i have is i'm getting a fastboot error. Boot into bootloader and at the bottom of the screen says "fastboot FAILstatus" below. Any idea what thats about?
Some apps can export their settings the sdcard so don't forget to check them. I know when I lose everything there's really only 4-5 apps that require much setup while the others just require a login, but luckily those 4-5 apps can export their settings.
I don't know about the error, I'm not very good with fastboot. I use it when I get a new phone then go a couple of years without using it.
i finally got rooted again. For some reason it just wouldnt take. I had to use superboot over and over and over again and then finally it just took successfully even though i didnt anything differently. Very strange.

Is Superuser/SuperSU apps necessary for proper root?

I'm on stock E980 Kitkat and I just rooted my phone using the Root Tool for Kitkat (can be found elsewhere in the OGP forums). Everything went fine and the next step is to install SuperSU or Superuser from the Play store. This has been my routine all through my Android life: Root and then install a superuser app.
Well, currently I don't have any of these Superuser apps installed (honestly, I was in a hurry and simply forgot to install one) and everything is working perfectly fine. According to Root Checker, I have full root access. All apps who require root are working perfectly fine; maybe even better. Titanium Backup restored all my apps. No issues whatsoever!
So my question here is this:
In order to have proper root and for everything to qork perfectly, is a superuser app really necessary? Or can I just keep things the way they are right now (no su app) and expect everything to work just fine?
PS:
I've been having to reflash my rom several times because of certain root-requiring apps constantly force closing on me. I've had SuperSU installed while this has been happening and without an su app, these apps are doing exactly as they are supposed to. I'm now wondering if there is a bug (or just some other issue) in SuperSU or something.
In Beanstalk thread, its OP recommended to install SuperSU App and uninstall it afterwards.
Kinda confusing and i dont know its purpose from a developers perspective.
Sent from my SGH-T959 using XDA Free mobile app
souleater11 said:
In Beanstalk thread, its OP recommended to install SuperSU App and uninstall it afterwards.
Kinda confusing and i dont know its purpose from a developers perspective.
Sent from my SGH-T959 using XDA Free mobile app
Click to expand...
Click to collapse
My guess, and this is coming from the few hours today using my phone without an SU app, is that it's a security thing (?).
Without the SU app, anything on my phone has root access as it pleases and I have no clue as to what is being granted these permissions. This is fine for me personally because everything I have installed that needs root, I WANT to have root access and it's really annoying to me to have to have to manually grant everything access.
So, I'm starting to wonder if the SU apps are simply for managing root access; allowing certain apps permission, while restricting the access of others.
So far, I've been running the phone several hours without any SU app and the phone is working great! I don't have to constantly grant apps permission all the time (or well, first time I guess).
Super SU
It is better if you could have Super Su installed because then you can control apps that needs root permissions. Some times root privileges required apps can harm your device.
romikavinda said:
It is better if you could have Super Su installed because then you can control apps that needs root permissions. Some times root privileges required apps can harm your device.
Click to expand...
Click to collapse
OK, so SU apps like SuperSU are basically used to manage root access from root-requiring apps. A security measue basically.
This is what I figured, but had to make sure.
Thank you

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