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11

You'll need to use fastboot, which is provided in the CF-Auto-Root zip file. Note: If you've installed a custom ROM or kernel on top of rooting, you'll want to flash the necessary stock versions from the Nexus 5 stock image with fastboot or possibly through TWRP/ClockWorkMod Recovery. In order to re-lock the bootloader: Reboot your phone to Bootloader ...


9

An RUU is a Windows executable file (HTC currently does not support Mac or Linux) that installs a ROM to your device. It will overwrite the following partitions: System (the /system mountpoint) Boot (the /boot mountpoint) Recovery User data (the /data mountpoint, this means you lose all of your personal data) It may update your radio image (if newer) You ...


9

This really depends. What phone are you using and how did you root it? For example: some phones have an easy "one click" root method to root your phone. They often have a reverse easy "one click" unroot method. An example of this is EasyRoot for Droid. As for doing it via a factory reset, that's not necessarily enough. Factory resets usually (always?) ...


8

Your phone is almost certainly not permanently bricked. Chances are you can boot into recovery to flash a new ROM. Worst case, you'll have to flash the phone back to stock with RSD Lite. That said, there's really no way to unroot the phone or flash a stock ROM without having to re-install your apps. You can try flashing a stock ROM without wiping data &...


7

As far as I know, doing a factory restore on the device should eliminate anything left over the device. Usually the process goes: Revert back to your earliest NANDROID backup (that you should have taken right after you rooted). If you don't have it, then flash a stock ROM. Run the unroot reversal process (in this case you ran an official update) Remove ...


6

Did you by chance have an automatic OTA update? That would do it.


6

As sparx said, depending on how you rooted, you can "unroot" with an app if you only rooted your device and did nothing else. If you modified android, by say, removing some bloatware, or flashed another rom on your device, then you will need to use something like Kies, ODIN or Heimdall to flash back the stock ROM. Flashing back the stock ROM can replace ...


6

Yes. You can unroot your phone. Use the method that GUI app (SuperSU, Superuser etc.) you use offer you to do it. No. It won't bring those apps back. Rooting is just a process of adding a binary in the /system partition that will let the apps approved by the GUI app execute commands as the root user, a user that is not an object to the standard rules ...


5

Technically, you don't need root if you have an unlocked bootloader. Even if it is locked, you don't need root, you just need an exploit to change the recovery to install CM9/CM10. Usually, the first thing that people do when an exploit is identified is "root" the device but flashing a different recovery and flashing a different ROM is also possible. Root ...


5

Absolutely. Well...almost. Just make sure you set the partition from rewritable to read-only once you're "unrooted". However, once you are unrooted, binaries like su and the SuperUser apk will in all probability removed, so you will in effect be dropped to a lower privilege level. This will have the side-effect of having the apps installed in the system ...


5

If I was buying a used device, I would expect that a factory reset would have been done to it. Either way, I'd probably do a factory reset myself anyway, just because. Unless, of course, I rather wanted a rooted phone. I think a factory reset is the better option. You wouldn't want someone to stumble upon some of your personal data. In any event, it's ...


4

I would keep the phone rooted, with the sale option of restoring to stock rom (if that's what the customer wants). Or you can give the phone back with a stock rom with root. Clockwork should let you do that. Make sure you factory reset the phone before you give it to them (rooted or not) and format the SD card too.


4

You cannot install an OTA update on rooted device because SuperSU changes some statement in install-recovery.sh to run itself on boot. To install OTA you need to install factory image available at https://developers.google.com/android/nexus/images?hl=en If you dont want to loose your apps and data. Simply edit the script flash-all.bat and remove -w ...


3

I could have found the solution by myself. Not sure because I haven't tested it yet. For the backup/restore: Titanium Backup (tutorial) For the downgrade/unroot thing: first I could restore Acer's original recovery via Acer recovery installer, then I could downgrade to HC3.0.1 with this I'll give it a try It works perfectly!!!


3

If you install a completely original ROM for the device, it will be unrooted. flashing the correct Stock ROM for your device will revert it back to its original factory state. Remember to Wipe both the Cache and Data when you flash. in the post you linked it also says: Notice: These are NOT rooted, and contain radio/hboot rom updates


3

Is background data enabled? You can enable it in Settings->Accounts and Sync->Background Data or System Settings->Data Use->Menu Button->Auto-sync data checked.


3

If all else fails, you can flash those images in Fastboot. Remember to make a Nandroid and back it up somewhere safe - this will wipe your device. If you're on Windows or OSX, you'll need to install Fastboot through the Android SDK. It's part of the "Platform Tools" package. If you're on Linux, you can usually install fastboot through your package manager. ...


3

You can go to SuperSu app or any other Superuser app you are using, and go to Settings and you will see a Full unroot option, press that and restart the phone when prompted. This should unroot the phone. But the boot loader will stay unlocked if you have unlocked it.


3

On request by OP, some details from chat: Good question, but hard to answer: there are a few more things to consider. it's not just "app based versus USB" – and even your "Difficulty in unrooting" is not necessarily the fault of "app based" in general, but rather that of a specific app causing that difficulty. From a security point of view: if there's an ...


3

Given this link about mount's output, it is at least confirmed that system partition is mounted in read-write mode, so we can exclude that from the list of possibilities that may be restricting rm from deletion. Plus, the error would be different too. Since you're running the command with superuser privilege, different file owner or group owner of that su ...


3

Firstly let me clarify something. Being rooted is not a binary situation where you are either rooted or not rooted. Process of rooting is adding custom binaries to system partition. These binaries, depending on the way they are coded, can answer suid calls from apps so those apps can have the right to execute orders not with their own UID but with the UID 0 ...


2

This website has a very good answer: http://www.droidforums.net/forum/droid-hacks/13466-how-back-stock-no-su-no-busybox-etc.html Seems to cover all your bases. Essentially involves: flashing the stock recovery and boot images to replace custom ones then either manually removing all the "root" bits, or (option B in the post) flashing the official ...


2

Before you un-root I'd recommend upgrading to the Stable release of CM 6.1 which may fix your problems. If you do unroot you can use Appbrain to reload all your apps but you'll still have to re-enter in all your settings and what not. If you stay rooted and use Titanium Backup you can reload all your apps from your SD card with all their settings intact. ...


2

Basically you would take a NANDROID backup (which is a image of your device as it is) immediately after you root your phone. Then at any point in time you can revert back to this backup, and unroot your phone. Also: Clockwork Recovery will actually let you push an unrooted stock image of Android back onto your Droid phone. As to bricking: you should be ...


2

Check out Are there any risks to rooting a device? and Unroot a device without wiping and How easy is it to return to stock after rooting with unrevoked Also, if i were to "brick" my droid is there any means of bringing it back to life? It depends. There's bricking, and then there's really bricking. If i were to root and then wanted to unroot ...


2

I was going to post a complete answer, but this XDA thread has everything I was going to say and it would take me too long to reproduce it :P. This post is basically a shortened version of the other, if you prefer that, but it seems you'd prefer more detail.


2

You could start with this method. It's basically just two steps: If you used Unrevoked Forever on your phone, then flash their S-ON tool. Flash a stock PC36IMG.zip from HBoot. There's also the RUU method, though I think you'd still need to run the S-ON tool if you used Unrevoked Forever (I don't believe the RUU will re-enable S-ON). Either one of these ...


2

You've got to do 2 things: First, download the S-ON tool from unrevoked's site and run it according to the instructions. The main thing to keep on top of is the radio compatibility, particularly if you've flashed any of the Evo's radios to your Incredible. Once you're back to S-ON, flash the latest RUU. Right now, it's 4.08.605.2. This will replace the ...


2

The short answer is yes. You should make sure your bootloader is locked by executing fastboot oem lock in your command line while your device is in fastboot (Home + Power + Volume+ for your specific device). Once your bootloader is locked it will be as if you never rooted your device. Once this is all done, you will regain your warranty which would otherwise ...


2

First, there is no such thing as a "full copy" of the system stored anywhere on the device, as it is with the Windows recovery partition you describe. Neither is there a "program which reinstalls the android operating system from scratch" stored on the device, so you could back that up (installation is always done via rom-flashing, which takes care of itself)...



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