[Q] Unroot Nexus One - Nexus One Q&A, Help & Troubleshooting

I'm new to the whole android OS and I trying to unroot my nexus one and I have read that it is possible here on XDA but I can't seem to understand it. I thinking of installing the original gingerbread stock rom onto my sd card then to my phone will that work for me or is there more to it. If someone would help me out I would really appreciate it.

You're probably better off flashing a rooted stock rom.

Unroot/restore guide in the wiki. Use passimg method with FRG33. If the updates to GRI40 don't start automatically, you can flash them yourself...
http://forum.xda-developers.com/wiki/index.php?title=Nexus_One/Guides_%26_Tutorials#Unroot_.2F_Restore_your_Nexus
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Related

[Q] Nexus One 2.3.3 Gingerbread, Simple Root?

Since upgrading to Gingerbread 2.3.3, I've lost the root access I had on Froyo. I used the RageAgainstTheCage method before and found that worked well. I could easily re-root after each update to Froyo, but it doesn't work now that I have updated to Gingerbread.
Is there a 1-Click Root or something fairly simple, similar to RageAgainstTheCage perhaps, that I can use to root my device without unlocking the bootloader??
I've heard some people mention Ginger Break?
Thanks, Steve.
No.
Whatever 'Gingerbreak' is is unreleased yet, apparently the dev wants a few more devices in the wild first.
Simple? Sure...
Code:
fastboot oem unlock
So if my bootloader is unlocked what else do I have to do at that point, push a custom recovery? I was under the impression that none had been updated for 2.3 on the nexus one yet.
Sent from my Nexus One using XDA App
same problem with me.. waiting for simple one..
Foxwolfe said:
So if my bootloader is unlocked what else do I have to do at that point, push a custom recovery? I was under the impression that none had been updated for 2.3 on the nexus one yet.
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
Recovery is version independent. Flash one, then use it to flash ChainsDD's su files.
Yup, flash a new recovery, then use the recovery to flash on the su update file
Alright cool thanks, didn't want to come off as ignorant on the matter but to be honest sometimes it feels like getting detailed information is kinda tough with all the threads that get created on the same subject and how large some of them get.
whitenoiz said:
Is there a 1-Click Root or something fairly simple, similar to RageAgainstTheCage perhaps, that I can use to root my device without unlocking the bootloader??
Thanks, Steve.
Click to expand...
Click to collapse
Does the rageagainstthecage method not work on 2.3.3???
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decoyjoe said:
Does the rageagainstthecage method not work on 2.3.3???
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Click to expand...
Click to collapse
Reports I've read indicate that the rageagainstthecage exploit doesn't work for 2.3.3.
If the soft-root exploits don't work on 2.3.3, simply downgrade to a 2.2 version, soft-root it, install a custom recovery and then flash a root 2.3.3 ROM...
I'm not completely certain, but I don't think you can downgrade either. At least I've not heard of anyone succeeding with the passimg approach yet...
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danger-rat said:
I'm not completely certain, but I don't think you can downgrade either. At least I've not heard of anyone succeeding with the passimg approach yet...
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Click to expand...
Click to collapse
That's me
It'd be great to have GingerBreak released. Please?
Looks like downgrade is possible for some, while others are struggling...
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Affirmative downgrade is possible!!!
Anyone need help????
but if i downgrade to 2.2.2 and root the n1 while its in 2.2.2. Wont it come out of root when I put the stock 2.3.3 on. Atleast for me the whole reason I went to 2.2.2 is so i can get the stock verison of gingerbread. I do want to root my phone but I dont wanna use a different rom as of now I wanna keep the stock verison of gingerbrad that I got from google. I guess my real question is without the ramble, Once I downgrade and root the Phone wont I lose root once I put the stock 2.3.3
Just install a pre-rooted stock 2.3.3...
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danger-rat said:
I'm not completely certain, but I don't think you can downgrade either. At least I've not heard of anyone succeeding with the passimg approach yet...
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Click to expand...
Click to collapse
Here I am!
I have successfully downgraded from stock GRI40 to FRG33 (via PASSIMG), rooted, flashed custom recovery and finally flashed a stock rooted GRI40.
Congrats!
I did actually correct myself later...
Sent from my Nexus One using XDA App

[Q] Return Nexus One to Stock

Hi all. I was trying to find a guide to return my AT&T Nexus One to fully stock. Right now I have Clockwork Mod Recovery and CM7 installed. I would like to return it back to stock recovery and stock froyo then update to gingerbread. Can someone help me or is there a guide posted somewhere to do this. I am still a newb at this so I would appreciate some clear instruction if possible. Thanks!
Take a look at the xda nexus one wiki
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Unroot/restore guide on the wiki
Sent from my Nexus One using XDA App
Yes wiki
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Thanks. Should I use fastboot method or PASSIMG? How do I know if I have AMOLED or SLCD screen?
passimg using FRG33
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danger-rat said:
passimg using FRG33
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Click to expand...
Click to collapse
Will this also restore the stock recovery?
Everything.
I am planning to do the same as the OP but what I would like to know is it possible to keep Clockwork Recovery while running stock Gingerbread and if so is there any advantage to this?
DXPetti said:
I am planning to do the same as the OP but what I would like to know is it possible to keep Clockwork Recovery while running stock Gingerbread and if so is there any advantage to this?
Click to expand...
Click to collapse
You would have to at least
Root the stock gingerbread for it to be any use at all.
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Alright I am really lost.
It seems there are several paths to restoring my N1 from CM7 RC1 to hopefully stock Gingerbread
Fastboot Method
PASSIMG Method
And because I have ClockworkMod Recovery using the backup and restore feature?
I wouldn't mind the last one as it seems fairly simple (I have a copy of the backup on my desktop, just need to figure out where it goes, path etc...) and should restore everything to how it was pre CM7 RC1.
I am worried that because apparently the newer version of CWM Recovery doesn't work with Froyo (2.2.2 which is was I would be restoring to, then factory reset, upgrade to Gingerbread). Also the HBOOTs are different between Froyo and Gingerbread correct? Would CWM Recovery restore the older HBOOT?
Or can I simply use the PASSIMG method with a Gingerbread Stock ROM?
Thanks in advance for putting up with my n00b questions

Guide for N1 Root Gingerbread from OTA 2.3.3 without unlocking bootloader

Simple Guide for a Root N1 with Stock 2.3.3 Gingerbread, without unlocking the Bootloader.
Many thanks to danger-rat for finding everything.
1 - Make sure you have a backup of everything.
MyBackup Pro
2 - Unroot/restore guide from wiki, using passimg with the FRG33 image (may not work for everyone):
http://forum.xda-developers.com/wik...des_&_Tutorials#Unroot_.2F_Restore_your_Nexus
If you get the "main version is older" error here, you're out of luck... do not continue, because you can't.
3 - Root:
http://www.nexusoneforum.net/forum/...mple-sdk-setup-manual-root-guide-windows.html
4 - Flash whatever you wanna flash (including a pre-rooted 2.3)
Stock Pre-rooted 2.3.3 (with additional features) http://www.multiupload.com/ALXR48D3YI
A couple of others:
http://forum.xda-developers.com/showthread.php?t=968396
http://forum.xda-developers.com/showthread.php?t=714184
http://forum.xda-developers.com/showthread.php?t=975764
(Again, thanks Danger-rat for finding these)
What do I do? I'll refine this first post for the full instructions, and all files needed, as I collect them. I'll probably post pictures if I have time to take them while I'm doing this. Hopefully mine goes without a hitch. -James
[]
1 - Backup.
2 - Unroot/restore guide from wiki, using passimg with the FRG33 image (may not work for everyone):
http://forum.xda-developers.com/wik...des_&_Tutorials#Unroot_.2F_Restore_your_Nexus
3 - Root:
http://www.nexusoneforum.net/forum/...mple-sdk-setup-manual-root-guide-windows.html
4 - Flash whatever you wanna flash (including a pre-rooted 2.3)
If you get the "main version is older" error on step 2, you're out of luck...
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I have a question about this one; is there a kernel or a radio version that will prevent you from doing the passimg to FRG33? It would be useful to know it, in order to avoid even trying it.
By the way, working on stock GRI40, would i have that problem?. I made the manual upgrade from FRG33 to GRI40, flashing all the time stock rom's from Google.
I've no idea what causes the "main version is older" error, so it seems like the only way to find out it's to try. Theres no risk in trying, except a few minutes of your time...
I've heard people suggest the hboot may be the problem, or the radio, or this, or that, but I've never seem anything to bring me to the same conclusion...
I believe efrant suggested that refurb phones may be the ones effected, and I'm kinds thinking he may be on the money...?
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I can't seem to find a prerooted gingerbread image.. maybe I'm just not looking hard enough.
http://forum.xda-developers.com/showthread.php?t=968396
http://forum.xda-developers.com/showthread.php?t=714184
http://forum.xda-developers.com/showthread.php?t=975764
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danger-rat said:
I've no idea what causes the "main version is older" error, so it seems like the only way to find out it's to try. Theres no risk in trying, except a few minutes of your time...
I've heard people suggest the hboot may be the problem, or the radio, or this, or that, but I've never seem anything to bring me to the same conclusion...
I believe efrant suggested that refurb phones may be the ones effected, and I'm kinds thinking he may be on the money...?
Sent from my Nexus One using XDA Premium App
Click to expand...
Click to collapse
Thanks so much for the info
So will this work with the stock GR140 Gingerbread update? I was never rooted before so will this work.
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stormtrooper1 said:
So will this work with the stock GR140 Gingerbread update? I was never rooted before so will this work.
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Click to expand...
Click to collapse
Should work. The only potential stumbling block is the passimg step, which doesn't work for a small number of people (no idea why)...
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I've downloaded frg33, renamed it to PASSIMG.zip and moved it to the sdcard (Root folder), yet when I boot into hboot it doesn't recognise it (Does the search but then nothing). Any solutions?
Wolffeh said:
I've downloaded frg33, renamed it to PASSIMG.zip and moved it to the sdcard (Root folder), yet when I boot into hboot it doesn't recognise it (Does the search but then nothing). Any solutions?
Click to expand...
Click to collapse
If the zip holds another zip then use it.. I once failed to use rom just because of that.
Nope just files.
Make sure it's not named passimg.zip.zip (Windows often hides the extension).
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Nope, it's PASSIMG.zip. I'm not sure if the file is corrupted, I tried downloading it about 3 times so far, none of them have worked.
Even if it's corrupted, your phone should still see it, and report an error.
The only reasons the phone wouldn't see it would be if the file is named incorrectly, in the wrong location (not on root of card), file is missing, SD not mounted, etc...
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I'm getting the The Main Version is older when trying to downgrade from GR140
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stormtrooper1 said:
I'm getting the The Main Version is older when trying to downgrade from GR140
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Click to expand...
Click to collapse
Your only option then is to unlock your bootloader, or wait...
Is your phone a refurbished or repaired one?
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No its not refurbished. I just got this phone new and it wasn't rooted to begin with at 2.2 and I made the mistake of updating to 2.3.3. I am assuming there will be a development in the works for this issue or another walkaround to this.
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Rumor has it that the author of rageagainstthecage has a version working for Gingerbread, which is known as Gingerbreak. He's waiting for more phones to be updated before releasing it though...
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danger-rat said:
Rumor has it that the author of rageagainstthecage has a version working for Gingerbread, which is known as Gingerbreak. He's waiting for more phones to be updated before releasing it though...
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Click to expand...
Click to collapse
Thanks.. I'll keep my eye out for it. I'm not used to stock Roms anymore. lol Very boring..
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I want to go back to stock

I've looks through the forum and I can't figure out how to go back to stock nexus one. I got this phone already rooted with cm 6.1.1.
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Read the unroot/restore guide in the wiki...

Cyanogen mod

Do u have to be rooted to install
cyanogen mod
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pswatts0122178 said:
Do u have to be rooted to install
cyanogen mod
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Click to expand...
Click to collapse
Yes, I suggest you find a guide that one of your modorators has put their time into to help people like you. Please next time look a little harder and read.
Sent from my HTC PH39100 using XDA
Of course. Rooting is the first step to make any modifications to your phone. What stock version are you currently on?
Sent from my SGH-I897 using XDA
I can't say you need to be rooted, but it is needed for certain backup utilities like Titanium Backup. Otherwise, all you need is CWM
Sent from my CM9 ICS i897 Captivate
I suppose I misspoke. Root is not required, but is greatly helpful, and I'd suggest obtaining it first.
Sent from my glitched ICS Captivate using XDA App
I would say , root is highly recommended. But I think I seen a tutorial somewhere about flashing clockworkmod recovery on a stock unrooted captivate, or flashing a modded 3e Recovery to flash unsigned zip packages. I will try to find the link for you. But to backup all your apps and data, you will need root.
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Here is the link for the modded 3 e recovery without signature checks if anyone needs it http://forum.xda-developers.com/showthread.php?t=909213
And I have a clockworkmod recovery zip for anyone who needs it as well
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cmilldrummin said:
Here is the link for the modded 3 e recovery without signature checks if anyone needs it http://forum.xda-developers.com/showthread.php?t=909213
And I have a clockworkmod recovery zip for anyone who needs it as well
Sent from my glitched ICS Captivate using XDA App
Click to expand...
Click to collapse
Thanks, I was looking for the link for the OP , but the search doesn't work well in xda app. Lol. It don't work well for me anyway. Lol
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Yea I didn't even bother with trying to use the app lol...have often tried and failed....switched to the browser
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Yeah, lol. And everytime I try to copy a thread url, xda premium force closes. I don't know why. Oh well. Lol
Sent from my Serendipity VII flashed Captivate using xda premium
+1 for XDA and all their work, -1 for their horrible app lol
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2.3.5
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cmilldrummin said:
Of course. Rooting is the first step to make any modifications to your phone. What stock version are you currently on?
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Click to expand...
Click to collapse
2.3.5
Sent from my SAMSUNG-SGH-I897 using XDA
There are methods to root gingerbread, but they tend to be more involved then earlier versions of android. I correct my earlier statement that root is necessary. I'd highly suggest it if you want to back up apps etc, but it isn't required. I'd suggest downgrading to 2.1 or 2.2 and use the superoneclick utility. Supposedly this tool works on gingerbread but I haven't had any luck with it.
Sent from my glitched ICS Captivate using XDA App
The easiest way is probably to flash Corn kernel, because you get the option to root in CWM. And you will have corn kernel, so it will also be easy to flash from there
Sent from my CM9 ICS i897 Captivate
If you want to flash a custom roms, flash back to stock, then flash a custom kernel via Odin, reboot to system, put the rom on root of sd card, reboot to cwm, do a nandroid backup, wipe data/factory reset, then flash zip from sd card. That's the basic of flashing. Search around in the captivate section and you will find your answers. There are so many topics about flashing roms. Most of the time the rom dev, posts detailed instructions on flashing his/hers rom from start to finish.
Almost every custom rom comes pre-rooted. No need to root once you flash the custom rom.
Also, if you want to save your contacts, you should do so before you flash back to stock, or before you flash the custom rom. If you want to backup all of your apps, then you will need to be rooted, and have titanium backup installed from the market.
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