Root the Nexus one Tutorial Updated to include ERE27 Update

-------Notes--------
1. This does void your warranty.
2. The root image auto installs the superusers permission app
3. I am in no way responsible for anything that goes wrong.
4. Once you unlock the bootloader it does a factory reset on your phone.
5. I don't mind people posting this tutorial on their sites for others to see and use but I do ask that I'm at least given credit for my work.


1. Download the root image: (Do not unzip)
Here

1b. Put nexus-addon-0.1-signed.zip on your sdcard.

2. Download fastboot and adb files:
Here

3. Extract tools.zip to a folder and Open a command window in that folder by holding down your shift key and right clicking anywhere in the window. and selecting open command prompt here

4. Then with your phone off hold the power and trackball to access the bootloader.

4b. Type this command to make sure your phone is connected and reconized. "fastboot.exe devices"

5. Once in the bootloader type this command in your command prompt "fastboot.exe oem unlock"

6. Follow what that sceen says.

7. Flash Amons RA Recovery Image from Here

---------------Now to root your phone.---------------

1. Once you've flashed the recovery image turn your phone off.

2. Then power on by holding power button and trackball then tap the power button to access the bootloader.

3. From there use your volume keys to go down to recovery and hit power button again to access the recovery console.

4. Once in the recovery console go to flash zip from sdcard and select the only one that should be present which is nexus-addon-0.1-signed.zip

5. Enjoy rooted phone

---------------Now to Flash the ERE72 Update and get root---------------

1. Download the update and radio image from our buddies over at modaco

Update: Link

Radio: Link

2. put both the radio and update zips on your sdcard

3. power down your phone then power on while holding trackball

4. Use volume keys and power button to get to bootloader then to recovery
(Note: For a shortcut download a terminal emulator from the market and type the following: su <enter> reboot recovery<enter>)

5. Go to flash zip from sdcard

6. Flash radio update zip first

7. After that is complete and you've restarted when it told you to do so.

8. Flash update zip

9. To get root again simply reflash the nexus-addon-0.1-signed.zip (instructions above.)

N1-tools.zip

--------------------------------------------------------------------------------------------------------

Followings are instructions for OSX or any *nix platform.
Android SDK is nice to have but not needed.
You can download the Android SDK here.

I take no responsibility for what you do to your phone or your computer.

Step 1. Download the file from above post and unzip the file to your desktop.
Step 2. Open Terminal.
Step 3. Go to the folder that you zipped.

command:
cd ~ <enter>
cd Desktop/ <enter>
cd 1.1-nexusone-superboot/ <enter>

step 3. Load into fastboot on your phone.
<option 1> first power off, then power on while holding down the trackball.
or
<option 2>You can also hold down volume down while powering on and then select fastboot and press power.

step 4. Make sure fastboot can connect to your device.

command:
./fastboot-mac devices <enter>

if you can see the serial number of the phone with fastboot next to it, you are good. If not, repeat step 3.

step 5. Enter the following in your terminal screen
./fastboot-mac oem unlock (if you are on a mac)
./fastboot-linux oem unlock (if you are on a linux based machine)

step 6. If you do not want to void warranty or if you have not save your settings and contact etc, do not press yes. Save those first.
Follow instructions on screen. (use the volume up/down to switch and power to select).
Phone will reboot with unlock icon on the bottom of the X logo. Kiss your original setup goodby.

step 7. Enter the follow command:
./fastboot-mac flash boot nexusone.superboot.1.1.img <for mac>
./fastboot-linux flash boot nexusone.superboot.1.1.img <for linux>

step 8. Reboot phone by pressing volume down and pressing power. You are done!

_______________

DISCLAIMER
AndroidTechie takes absolutely no responsibility nor do do any of the developers for what may go wrong during this entire process. Remember nobody, besides for yourself, is responsible if something happens to your phone. While many, many people have successfully done this, there is always the very odd chance that even if you meet the requirements, things may go wrong. This website is solely for informational purposes and gives credit where credit is due. AndroidTechie links back to all original content. Please visit those sites.