finally regain root by using superboot of modaco, following instructions as contained in http://forum.xda-developers.com/showthread.php?t=927838

I updated the OP's steps for 2.3.3 and posted them here as well as in a new thread

Warning: If you break your phone trying this, I am not responsible. I do not guarantee that the following is safe or that the steps are correct. Rooting your phone voids the warranty. I have no responsibility for anything that occurs as a result of your following these directions! I cannot provide any support nor guide you in undoing this process and restoring the phone to factory condition.

This process will wipe your phone. Ie, you will lose all your apps/data on your phone and have to reinstall them. It will also wipe your external storage, so back that up prior to proceeding if you want to keep anything.[/B]

1) Download the "androidsdk.zip" file from here: Android SDK

1)a You'll need to install the SDK, you'll find instructions on how to do that on the link above

1)b Also download this file and unzip it to your desktop.

Unzip the SDK file (if not already unzipped automatically upon download), and place the "androidsdk" folder on your Desktop. It has to be in this location for the rest of the steps to work.

1)c Download the newest Recovery from here (find Google Nexus S its near the bottom) and place it in the folder "adb-fastboot" on your desktop

2) On your phone, go to Menu>Settings>Applications. Select "Development" and check the box next to "USB debugging"

3) Connect the phone to your Mac via the USB cable

4) Open a Terminal window on your Mac (Applications>Utilities>Terminal), and copy/paste the following into the Terminal:

~/Desktop/adb-fastboot/adb reboot bootloader

Hit "Return" and wait for your phone to to reboot into Bootloader/Fastboot mode

5) If your Bootloader screen says "LOCK STATE - UNLOCKED" then skip to Step 6. If it says "LOCK STATE - LOCKED" then copy/paste the following into the Terminal:

~/Desktop/adb-fastboot/fastboot oem unlock

Hit "Return" and on your phone will prompt you to confirm and warn you that you are going to lose everything. Confirm. At this point you will have an unlocked bootloader.

6) Copy/paste the following into the Terminal window:

~/Desktop/androidsdk/tools/fastboot boot recovery-clockwork-3.0.0.5-crespo.img

Hit "Return" again and wait for recovery to boot.

For the following steps while in Recovery, use "Volume Down" to highlight a selection and "Power" to choose that selection:

8) Choose "mounts and storage"

9) Choose "mount USB storage". Your phone should now be mounted on the Mac as a Device called "NO NAME"

10) Download the superuser file here and place it on your SD card.

11) Eject/unmount your phone in the Finder on your Mac.

12) On your phone, choose "Unmount"

13) Choose "mount /system"

14) Choose "+++++Go Back+++++"

15) Choose "install zip from sdcard"

16) Choose "choose zip from sdcard"

17) Choose "su2361ef.zip"

At this point you have root, but your phone will continue to replace ClockworkMod Recovery on reboot. To prevent this, do the following:

1) Reboot your phone, and download the app "Root Explorer" from the Market

2) Open Root Explorer and navigate to the "etc" directory.

3) Tap on the gray box that says "Mount R/W"

4) Tap and hold on the file "install-recovery.sh" and rename this file to "install-recovery.sh.old"

5) Download the app "ROM Manager"

6) Open ROM Manager and choose "Flash ClockworkMod Recovery". At this point you are all set .

Thanks for the great step by step

Mac User w/bricked Nexus S (Noob)

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Greetings Everyone,

Okay, so I endeavoured to root my phone last night and was successful. I ran into trouble when the clockwork recovery and superuser permissions kept getting removed each time I reboot.

Now, I'm at the Google splash screen with no way to move forward. I'm a mac user and I don't really get the adb thing. Got adb to work with mac from a youtube video, but still not sure what commands to run.

What I've done so far:
- wiped cache
- wiped/factory data reset
- retraced my steps by using terminal to setup superuser permission from this post (http://forum.xda-developers.com/showthread.php?t=927838)

What I think:
- maybe in all of my clicks I removed the ROM, so the phone doesn't have a ROM to work with.

This maybe a really infantile conclusion, but I know there's a solution (had a rooted G1 that I flashed all the time and thought I bricked once but was able to get it back to stock).

Eagerly waiting for a reply... no cell phone if this can't be fixed.

Tamara
__________________
Phone: Nexus S
Almost rooted

Stuck at Google Logo

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Hi,

I'm in a bit of trouble....

Was going through the process of rooting the Nexus S as documented here and I'm stuck at the Google logo. I can get back into Clockwork after flashing it from recovery but as soon as I reboot I'm stuck at the Google logo screen.

I have an unlocked bootloader and I followed the instructions to update su2361ef.zip which seemed to complete successfully.

Any ideas?

Thanks in advance.

I solved tamaratee's problem, as well as mine.

I needed to reinstall stock Android to get past the Google logo. You can get the stock zip from http://forum.xda-developers.com/showthread.php?t=967953

Use Clockwork to mount as a drive on your computer and copy the 2.3.3 rom to your phone. Then update from phone and reboot.

I actually installed CM7 but the above should work too.

Hhhheeeelllllppppp

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Is there any way to flash rom via fastboot?only I have fastboot right now.any ideas?

im on 2.3.1, rooted. yet i haven't install clockwork mod

can anyone show me how do i continue now?

Originally Posted by kemsiro

im on 2.3.1, rooted. yet i haven't install clockwork mod

can anyone show me how do i continue now?

go to the market and download rom manger app. Once installed flash clockwork recovery, after its flashs and is up to date then you can download a rom from their app list or which ever one you want from the web.

I need help... I followed the instructions and Clockwork Recovery on my Nexus and and I was attempting to get CM7 on it when I ran into some trouble.

I am getting errors while in recovery and I cannot flash and ROMs. Furthermore, the phone won't booth past the Google logo right now!

E: failed to find "cache" partition to mount at "/cache"
E: can't mount /cache/recovery/log
E: can't mount /cache/recovery/last_log
E: can't open /cache/recovery/last_log
E: can't find misc