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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 ...


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

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

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 ...


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 ...


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 ...


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

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.


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. ...


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 ...


2

You could try booting into fastboot mode, and then use fastboot -w. This command wipes userdata and cache, and thus should be equivalent to a factory-reset. For more information, there's a List of fastboot commands, and of course our fastboot tag-wiki.


2

You will need to flash back to the stock kernel as files linked on that site will only apply to a 'stock' system partition. You should be able to flash the file via TWRP by selecting it (I presume you've tried this as you said that it gave you an error). To flash back to the stock kernel you will need to find the stock kernel image (ideally you would have a ...


1

Without root Astro doesn't have permission to view the contents of the /data directory. It probably displays it as "empty" in an attempt to handle it gracefully, I would guess (but that's mostly a guess). It seems like a fairly sensible alternative to other solutions, though, aside from perhaps giving you a message that says "Permission Denied" or similar.


1

Here I found a detailed description how to unroot your Asus TF101 transfomer. The procedure is not trivial and you need to follow several step, but most of them can be done through adb so there are chances that you can do it.


1

You can find the stock ROM for the SGS2 on XDA here, and there is also a list of branded carrier ROMs here. You will then need to use a tool like ODIN (maybe even Kies) to flash the ROM to the device. The first link also is a good tutorial on how to flash via ODIN. I recommend you read everything before you attempt to restore, then when you understand it ...


1

This link should help. It contains a link to a thread detailing a special zip file created by one of the developers. It will help you possibly get S-ON. The step by step instructions are in the thread: http://forum.xda-developers.com/showthread.php?t=863899 By the way, S-OFF isn't something service technicians actively look for. Many people have sent in ...



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