Samsung Galaxy S8 unroot - General Questions and Answers

Currently have an Rooted S8 which runs TWRP.. whats the best method for unrooting the device as I want OTA updates?

minalm said:
Currently have an Rooted S8 which runs TWRP.. whats the best method for unrooting the device as I want OTA updates?
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It depends on whether you're using SuperSU or Magisk.
To unroot if you have SuperSU, open SuperSU app, then open its app settings, find the setting that says something like "cleanup for unroot and uninstall". That will remove the su binaries and uninstall the SuperSU app.
To unroot if you have Magisk, use the Magisk uninstaller.zip(might cause bootloop which then requires flashing stock firmware via Odin)
Or you can just flash the stock firmware via Odin to remove root. You're going to have to get rid of TWRP also which would require you to flash a copy of stock recovery to replace TWRP. Flashing stock firmware via Odin will replace TWRP and remove root all in one shot, no need for extra steps or tricks.
Then you can do the OTA update.
OR
An even better option is as follows.
The OTA update might even be available to the public to download, if so, you can download the update manually(not via OTA) then flash the update via Odin, this will replace TWRP, remove root and update the device all in one shot. This way, you won't have to do anything except flash the update and you're done. No need to replace TWRP and unroot before doing the OTA update. This method skips all of that and gets you the update without having to do all the extra work. You'll have to root the device again and flash TWRP after the update has been applied.
If you choose to do the OTA instead, make sure you are completely unrooted and are back on stock recovery, you can't have root or TWRP when you do the OTA, it will not work that way.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Droidriven said:
It depends on whether you're using SuperSU or Magisk.
To unroot if you have SuperSU, open SuperSU app, then open its app settings, find the setting that says something like "cleanup for unroot and uninstall". That will remove the su binaries and uninstall the SuperSU app.
To unroot if you have Magisk, use the Magisk uninstaller.zip(might cause bootloop which then requires flashing stock firmware via Odin)
Or you can just flash the stock firmware via Odin to remove root. You're going to have to get rid of TWRP also which would require you to flash a copy of stock recovery to replace TWRP. Flashing stock firmware via Odin will replace TWRP and remove root all in one shot, no need for extra steps or tricks.
Then you can do the OTA update.
OR
An even better option is as follows.
The OTA update might even be available to the public to download, if so, you can download the update manually(not via OTA) then flash the update via Odin, this will replace TWRP, remove root and update the device all in one shot. This way, you won't have to do anything except flash the update and you're done. No need to replace TWRP and unroot before doing the OTA update. This method skips all of that and gets you the update without having to do all the extra work. You'll have to root the device again and flash TWRP after the update has been applied.
If you choose to do the OTA instead, make sure you are completely unrooted and are back on stock recovery, you can't have root or TWRP when you do the OTA, it will not work that way.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE
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you have given a very detailed explanation and i fell like a simple thank you would be enough. you helped me out now and i feel somewhat obliged to thank you this way.
cheers

Is the things still the same... namely unrooting will not return KNOX and can not use Samsung warranty?

hi
i have a rotted phone s8..i flashed a stock rom, but phone is still rooted. Some apps like us google pay,mcdonalds tell me that phone is rooted..What i can do?

Related

Still get OTAs while having ROOT?

If I root the latest stock 4.4.2, will I still be able to get future OTA Updates without braking the root or custom recovery, well if root gets lost I can always root it again. Just asking, maybe I won't be able to get OTA Updates at all after rooting but I don't know so that's why I'm asking it here.
KuGeL94 said:
If I root the latest stock 4.4.2, will I still be able to get future OTA Updates without braking the root or custom recovery, well if root gets lost I can always root it again. Just asking, maybe I won't be able to get OTA Updates at all after rooting but I don't know so that's why I'm asking it here.
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Click to collapse
Yes!
SWTR said:
Yes!
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Click to collapse
Indeed.
KuGeL94 said:
If I root the latest stock 4.4.2, will I still be able to get future OTA Updates without braking the root or custom recovery, well if root gets lost I can always root it again. Just asking, maybe I won't be able to get OTA Updates at all after rooting but I don't know so that's why I'm asking it here.
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The OTA will download but not install. You need stock recovery AND any system file that is updated by the OTA needs to be stock as well otherwise OTA install will fail.
Plenty of threads on XDA speak of this.
If you look at the OTA updater file you will see if uses MD5 (or similar) to check each system file it updates to make sure its as it was originally.
When you root it alters some system files.
Best thing is to install custom recovery and take a backup before rooted. Then root. When you get an OTA just restore backup and flash stock recovery. Then OTA will re-download. Let it install, then flash custom recovery and re-root.
Thanks, well I'll just stay unrooted and make the best out of it, the Moto G is just as amazing as Motorola developed it to be.
No stock recovery it's no need. I updated last ota with Philz recovery without problems.
denzel09 said:
No stock recovery it's no need. I updated last ota with Philz recovery without problems.
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Do you mean you downloaded OTA and flashed manually via recovery. You can do that I agree, but what you can't do is let OTA install naturally the way Motorola intended.
No. I had Philz recovery. System stock partition. Downloaded ota normally, reboot like ota update ask, phone reboots in philz recovery and this last flash ota automatically without any problem. There is not need to reflash stock recovery or flash ota update manually with custom rec, only need a non root stock system partition. I dont know if stock cwm or other rec like twrp work in same way but i doubt, always used only philz recovery.
You do not need stock recovery, I don't know who made this stupid rumour up. I use twrp and it flashes fine.
Sent from my Google Nexus G -

LG G5 H830 10a will not update

So I'm having an issue with updating my phone.
I have tried reading all of the threads, but so many things are still a mystery and are confusing. I haven't been able to get a full understanding of all of this.
I have a LG G5 H830 10a T-Mobile variant.
I am running Android 6.0.1
I have a custom recovery of TWRP
My phone is rooted with SuperSU also.
All I want to do, is to update my phone to Nougat. What is the process I have to go through? After reading all about it, here is my assumption:
I download Flashfire and use DisableService to disable my root and SuperSu, then I run the OTA Nougat update...
That didn't work. I got an error from TWRP that said:
"unable to flash update.zip from cache/update.zip, update is meant for "h1" device, your device is an H830"
Or something along those lines.
I have a Nandroid backup, so I'm not worried if I brick or soft brick it.
Any help please?
Thanks!
technocrat7 said:
So I'm having an issue with updating my phone.
I have tried reading all of the threads, but so many things are still a mystery and are confusing. I haven't been able to get a full understanding of all of this.
I have a LG G5 H830 10a T-Mobile variant.
I am running Android 6.0.1
I have a custom recovery of TWRP
My phone is rooted with SuperSU also.
All I want to do, is to update my phone to Nougat. What is the process I have to go through? After reading all about it, here is my assumption:
I download Flashfire and use DisableService to disable my root and SuperSu, then I run the OTA Nougat update...
That didn't work. I got an error from TWRP that said:
"unable to flash update.zip from cache/update.zip, update is meant for "h1" device, your device is an H830"
Or something along those lines.
I have a Nandroid backup, so I'm not worried if I brick or soft brick it.
Any help please?
Thanks!
Click to expand...
Click to collapse
You're not going to be able to update to Android N yet if you want to keep twrp and root. Only way to do it currently is if you have 100% stock phone and update via ota or using the zip file that was posted. If you don't care about root or twrp, update to 10j using the complete zip that autoprime posted and don't install SuperSU or dm-verity and let boot. You will have 100% stock and can take ota or use zip method. *** There is no current way to get root or twrp for t mobile version once on official android N yet *** So if root and twrp are important just wait until autoprime gets a chance to upload the flashable zip files for N to flash in twrp. You could also use cm or cm based Roms if you want android N, plus those are 7.1 stock is only 7.0, but if you want stock rooted just have to wait until it's released.
jeffsga88 said:
You're not going to be able to update to Android N yet if you want to keep twrp and root. Only way to do it currently is if you have 100% stock phone and update via ota or using the zip file that was posted. If you don't care about root or twrp, update to 10j using the complete zip that autoprime posted and don't install SuperSU or dm-verity and let boot. You will have 100% stock and can take ota or use zip method. *** There is no current way to get root or twrp for t mobile version once on official android N yet *** So if root and twrp are important just wait until autoprime gets a chance to upload the flashable zip files for N to flash in twrp. You could also use cm or cm based Roms if you want android N, plus those are 7.1 stock is only 7.0, but if you want stock rooted just have to wait until it's released.
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Ohh okay, perfect thank you!
With that in mind, I had another question..
I have an LG V20 as well.
One thing I was thinking of doing was the following:
Unlocking the bootloader, putting a custom recovery like TWRP on it.
Make a Nandroid backup.
Then root it, and then go about my business. If something like this happens again and I want to update, I can simply do a Titanium Backup go to my Nandroid backup, restore it. Then update OTA, then reroot, run titanium backup restore, and then I'll be back where I left off.
will that work?
And one last question:
How would I go back to factory settings on my LG G5?
technocrat7 said:
Ohh okay, perfect thank you!
With that in mind, I had another question..
I have an LG V20 as well.
One thing I was thinking of doing was the following:
Unlocking the bootloader, putting a custom recovery like TWRP on it.
Make a Nandroid backup.
Then root it, and then go about my business. If something like this happens again and I want to update, I can simply do a Titanium Backup go to my Nandroid backup, restore it. Then update OTA, then reroot, run titanium backup restore, and then I'll be back where I left off.
will that work?
And one last question:
How would I go back to factory settings on my LG G5?
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I'm not 100% sure but I don't think that would work as once you install twrp it modifies the recovery. IMG which would cause ota to fail. But on the other hand, you could most likely do the same method as the g5 to go back to official and take ota. Flashing the complete zip (if those are being created for the v20, haven't checked that thread as I don't own that device) and not re-installing the dm-verity or SuperSU will always reinstall the original boot.img and recovery.img and be 100% official stock. Hope this helps.
jeffsga88 said:
I'm not 100% sure but I don't think that would work as once you install twrp it modifies the recovery. IMG which would cause ota to fail. But on the other hand, you could most likely do the same method as the g5 to go back to official and take ota. Flashing the complete zip (if those are being created for the v20, haven't checked that thread as I don't own that device) and not re-installing the dm-verity or SuperSU will always reinstall the original boot.img and recovery.img and be 100% official stock. Hope this helps.
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Thanks!
That helps a ton.
What is dm-verity though?
technocrat7 said:
Thanks!
That helps a ton.
What is dm-verity though?
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Click to collapse
The zip file we flash to disable force encryption (now this is part of the latest SuperSU zips).
jeffsga88 said:
The zip file we flash to disable force encryption (now this is part of the latest SuperSU zips).
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Click to collapse
Can you link to the latest superuser? Just wanna have it on hand for when the H830 N zip drops
carnivalrejectq said:
Can you link to the latest superuser? Just wanna have it on hand for when the H830 N zip drops
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Click to collapse
Here's the link to chainfires thread which will always have the latest beta supersu versions:
http://forum.xda-developers.com/apps/supersu/2014-09-02-supersu-v2-05-t2868133

On H83010i, bootloader unlocked not rooted. Want H83020f rooted

I have successfully unlocked the bootloader my H83010i version.
I started down the path to root my device using H83010d tot file but stopped because I didn't know if when I upgrade to android 7.0 versions if I would lose root?
Therefore what is the easiest way to get to H83020f rooted?
How do I go from H83010i to H83020f and be rooted?
I have rooted a lot of samsung galaxy phones but this is my first LG so I am struggling a bit to understand how to upgrade. I assume if I do an OTA update it will install the latest version? I checked for system updates and it just said there is an update and to start downloading it but I don't know which update version that is?
Please advise.
Thanks in advance.
buyslake said:
I have successfully unlocked the bootloader my H83010i version.
I started down the path to root my device using H83010d tot file but stopped because I didn't know if when I upgrade to android 7.0 versions if I would lose root?
Therefore what is the easiest way to get to H83020f rooted?
How do I go from H83010i to H83020f and be rooted?
I have rooted a lot of samsung galaxy phones but this is my first LG so I am struggling a bit to understand how to upgrade. I assume if I do an OTA update it will install the latest version? I checked for system updates and it just said there is an update and to start downloading it but I don't know which update version that is?
Please advise.
Thanks in advance.
Click to expand...
Click to collapse
First of all, no need to use 10D tot file anymore. Download and install 20A kdz front autoprime located here:
https://forum.xda-developers.com/tmobile-lg-g5/development/stock-h830-20a-rom-flashable-zips-imgs-t3511294
Once that's installed, set up your system and then follow the following guide to get TWRP an root:
https://forum.xda-developers.com/tmobile-lg-g5/development/root-h830-running-30a-nougat-t3524322
After you have TWRP and root download the flashable 20F zip and install from TWRP (make sure to delete recovery from boot.p file after installing and also flash root). Here's the link to 20F:
https://forum.xda-developers.com/tmobile-lg-g5/development/stock-h830-20f-rom-flashable-zips-imgs-t3592855
If you follow all of that, you will be on stock 20F, rooted and with TWRP. After that, I recommend checking out the following custom kernel and installing that and using magisk instead of SuperSU. Kernel located here:
https://forum.xda-developers.com/tmobile-lg-g5/development/jan-17-2017-20c-deodexed-kernels-t3539611
Hopefully that helps, if you need more help just ask.
Thanks so much for taking the time to write me this great information. I have a question about the (make sure to delete recovery from boot.p file after installing and also flash root). ???????? Is this explained clearly somewhere? I don't know what I should do.
buyslake said:
Thanks so much for taking the time to write me this great information. I have a question about the (make sure to delete recovery from boot.p file after installing and also flash root). ???????? Is this explained clearly somewhere? I don't know what I should do.
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Click to collapse
After flashing the 20F version from TWRP, it creates a recovery from boot.p file in the system directory. If you don't delete this file before rebooting, you will lose TWRP. So, after doing the recowvery method to get root and TWRP and then after you flash the 20F from TWRP, after it's done flashing go to main menu of TWRP, click on mount, check system, go back to main menu, click advanced, click file manager and go-to system directory and click on the recovery from boot.p file and then delete. Now you can reboot without losing TWRP. Then you can flash SuperSU or magisk for root
Your Device software cannot be checked for corruption. Lock the bootloader
Thanks for the fast responses. After many hours of studying the posts and I finally got my LG G5 running on H830_20F_DeOdexed rom withh Asgard version 4.5 kernal and rooted with SuperSU v2.74.
However I keep getting the "your device software cannot be checked for corruption. lock the bootloader message upon starting up. see attachment
Does everyone get that message? Or is there a way to remove it?
I thought the Asgard kernal said it got rid of that?
buyslake said:
Thanks for the fast responses. After many hours of studying the posts and I finally got my LG G5 running on H830_20F_DeOdexed rom withh Asgard version 4.5 kernal and rooted with SuperSU v2.74.
However I keep getting the "your device software cannot be checked for corruption. lock the bootloader message upon starting up. see attachment
Does everyone get that message? Or is there a way to remove it?
I thought the Asgard kernal said it got rid of that?
Click to expand...
Click to collapse
You'll always have that message, no current way around it. Asgard kennel will allow you to pass safety net if you use magisk instead of SuperSU for root as it hides that the bootloader is unlocked from the system.
Where is Magisk?
jeffsga88 said:
You'll always have that message, no current way around it. Asgard kennel will allow you to pass safety net if you use magisk instead of SuperSU for root as it hides that the bootloader is unlocked from the system.
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Click to collapse
Are you saying that boot up message will not be there if I switch to Magisk?
I tried to find magisk but I was unable to locate the install file and instructions on how to change from SuperSU to magisk. Do you know the link to it?
buyslake said:
Are you saying that boot up message will not be there if I switch to Magisk?
I tried to find magisk but I was unable to locate the install file and instructions on how to change from SuperSU to magisk. Do you know the link to it?
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Click to collapse
No. I said currently there is no way to get rid of that message unless you lock the bootloader and you can't do that after modifying the system (i.e. installing TWRP and root). I said magisk will allow you to pass safety net. All that does is allow you to use apps that won't work with root / unlocked bootloader. If you don't use apps like Android pay or other apps that don't work when rooted, it really isn't necessary to switch from SuperSU to magisk. Anyways, if you're interested in magisk use Google (or XDA search) and search magisk XDA.

S20 Ultra Rooted Can't Update Phone.

Whenever i click on software update it says connecting then gives me a message Registration Failed.
How am i supposed to get phone updates after root?
vangry2020 said:
Whenever i click on software update it says connecting then gives me a message Registration Failed.
How am i supposed to get phone updates after root?
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Click to collapse
Stock updates require an unmodified system, and they also require stock recovery, meaning, no root, no exposed or any other kind of system modification. Even if you did find a way to apply the update while being rooted, it would probably soft brick the device, then you would have to repair the device, IF it can be repaired.
If you want to apply a stock update, return your device to full unmodified stock system, then the update should work. If you have custom recovery, you need to flash the stock recovery back onto your device before you apply the update because the stock update requires stock recovery in order for it actually flash the update.
After applying the update, root the device again and install custom recovery(if you had custom recovery).
Sent from my SM-S767VL using Tapatalk
Droidriven said:
Stock updates require an unmodified system, and they also require stock recovery, meaning, no root, no exposed or any other kind of system modification. Even if you did find a way to apply the update while being rooted, it would probably soft brick the device, then you would have to repair the device, IF it can be repaired.
If you want to apply a stock update, return your device to full unmodified stock system, then the update should work. If you have custom recovery, you need to flash the stock recovery back onto your device before you apply the update because the stock update requires stock recovery in order for it actually flash the update.
After applying the update, root the device again and install custom recovery(if you had custom recovery).
Sent from my SM-S767VL using Tapatalk
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Click to collapse
Thanks for the reply.
Is there a way to recover my files and settings exactly as they were after the update since the phone is erased when i unlock the bootloader?

Custom ROM

Hello, will it be possible to return from custom firmware to the original one and continue to receive OTA update ?
Uxlewl said:
Hello, will it be possible to return from custom firmware to the original one and continue to receive OTA update ?
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Yes, if you used TWRP to create a backup of your stock ROM before you flashed a custom ROM, you just use TWRP to restore the backup of stock ROM.
Or, if you didn't use TWRP to backup your stock ROM, you can flash your device's stock firmware using the flashtool designed to be used with devices made by your device's manufacturer.
But to install TWRP you need Root, and if you get it, then OTA updates stop coming or am I wrong?
Uxlewl said:
But to install TWRP you need Root, and if you get it, then OTA updates stop coming or am I wrong?
Click to expand...
Click to collapse
No, installing TWRP does not require root. Yes, TWRP and root prevent the installation of OTA updates.
That is, to make a backup copy of the original firmware, you need TWRP, but if you install it, you lose the ability to receive OTA updates, and if you restore the original after the custom firmware, there will be no updates? Or can TWRP be removed and OTA updates will come again? I'm sorry I do not understand.
Uxlewl said:
That is, to make a backup copy of the original firmware, you need TWRP, but if you install it, you lose the ability to receive OTA updates, and if you restore the original after the custom firmware, there will be no updates? Or can TWRP be removed and OTA updates will come again? I'm sorry I do not understand.
Click to expand...
Click to collapse
To be more specific, installing TWRP does not necessarily prevent a device from actually receiving/downloading OTA updates, it prevents the actual installation of OTA updates because part of the OTA update includes automatically booting into stock recovery to apply the update. If you have TWRP installed, the OTA update can possibly be downloaded to the device but when the device automatically tries to reboot into recovery, it is trying to boot into stock recovery but if you have TWRP installed, it can't boot into stock recovery to apply the update and when it tries to boot into TWRP, it will try to apply the update but it will fail, resulting in a bricked device and the device will have to be restored.
When it comes to OTA updates, all that is required is an unmodified stock system partition(meaning, no root or any other kind of modifications to the system partition), stock recovery(meaning, no TWRP) and the update has to be offered by your carrier if they offer the update for your specific device.
If a device is rooted, has other system modifications and/or has TWRP installed and you want to apply a stock OTA update, you have to remove root and any other system modifications and you must replace TWRP with the original stock recovery before you can apply the update. If you have TWRP and or root and you remove them to apply an OTA update, you can root the device again and install TWRP again after the update, provided that the OTA does not come with a locked bootloader that can not be unlocked, in this case, you will not be able to reinstall TWRP or root because the bootloader will be locked, which prevents you from installing TWRP again. Sometimes, users remove root and TWRP to apply OTA updates with the intention of rooting and/or installing TWRP again after the update but then get stuck in a position where they can no longer root the device or install TWRP because the bootloader gets locked during the update and there is no way to unlock the newly updated bootloader, from then on, they are stuck with stock with no way to get root, TWRP and custom ROMs reapplied to the device because they were not aware that the update came with a locked bootloader that can not be unlocked by any means.

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