How to: Unroot the Galaxy Nexus, Re-lock the Bootloader and Return to a Factory State

Unlocking the bootloader and rooting your Galaxy Nexus is really only half the battle. There may come a time when you need need to lock everything back up, including that bootloader. Thanks to the Android team, we have the factory images that can not only fix a bootlooping or soft-bricked device, but make it look like you just pulled it out of the box.  

Instructions:

1.  Download the Android 4.0.2 factory images to your PC. [Download]
2.  Unzip the file and its contents into your SDK/Tools folder (wherever your adb.exe and fastboot.exe files are).

*Make sure they are not in their own folder, but have all been extracted to Tools.

3.  From within your Tools folder, open a command prompt (SHIFT + right click – “open command prompt here”):
4.  Type the following commands, allowing each to finish before moving onto the next:

adb reboot bootloader
fastboot flash bootloader bootloader-toro-primekk15.img
fastboot reboot-bootloader
fastboot flash radio radio-toro-i515.ek02.img
fastboot reboot-bootloader
fastboot flash radio-cdma radio-cdma-toro-i515.ek05.img
fastboot reboot-bootloader
fastboot -w update image-mysid-icl53f.zip
fastboot reboot-bootloader
fastboot oem lock

5.  Reboot your phone by highlighting “Start” and pressing the lock switch.
6.  It really is as simple as that. Your phone is now back to a 100% stock, unrooted and locked state.

via Droid Life.

HTC Details Upcoming Bootloader Unlocking Process For New And Select Existing Devices Via A Web-Based Tool

Per HTC’s Facebook Page, here are some info on how the unlocking will work!

“The Web tool … requires that you register an account with a valid e-mail address and accept legal disclaimers that unlocking may void all or parts of your warranty. Then plug in your phone to a computer with the Android SDK loaded to retrieve a device identifier token, which you can then enter into the Web tool to receive a unique unlock key via e-mail. Finally, apply the key to your device and unlocking will be initiated on your phone.
In essence, all HTC devices will ship with locked bootloaders which will be unlockable (fully supported by HTC) using the web-based tool. Existing phones will need an OTA update in order to gain this “unlockability” – as expected, they won’t just suddenly all get unlocked automatically.”

**UPDATE 8/3/2011**
“Since our last update, many of you have asked how the bootloader unlocking process will actually work, and in particular why HTC’s most recently released devices still have a locked bootloader. Rest assured we’re making progress toward our goal to roll out the first software updates in August to support unlocking for the global HTC Sensation, followed soon by the HTC Sensation 4G on T-Mobile and the HTC EVO 3D on Sprint. Because unlocking the bootloader provides extensive control over the device and modifications may cause operation, security and experience issues, new devices will continue to ship locked but will support user-initiated unlocking using a new Web-based tool.
So how will this work? The Web tool, which will launch this month, requires that you register an account with a valid e-mail address and accept legal disclaimers that unlocking may void all or parts of your warranty. Then plug in your phone to a computer with the Android SDK loaded to retrieve a device identifier token, which you can then enter into the Web tool to receive a unique unlock key via e-mail. Finally, apply the key to your device and unlocking will be initiated on your phone.
We’re excited to bring bootloader unlocking to developers and enthusiasts, and we feel this new Web tool will meet your needs and continue to provide customers with the best experience. Thanks to the community for supporting these efforts!”

HTC: No more locked bootloaders

Break out the bubbly — HTC CEO Peter Chou just announced via Facebook that they have heard everyone and will no longer be locking the bootloaders of their devices.  Were assuming and hoping this will start with the EVO 3D and the HTC Sensation, and users buying these new HTC phones will no longer depend on luck and skilled hackers to get them more open.Said CEO Peter Chou, via Facebook:”There has been overwhelmingly [sic] customer feedback that people want access to open bootloaders on HTC phones. I want you to know that weve listened. Today, Im confirming we will no longer be locking the bootloaders on our devices. Thanks for your passion, support and patience.”No word on exactly what this will mean for current models that have shipped with bootloader restrictions, or exactly how the new bootloaders will be “unlocked.”  Were reaching out to HTC, and as soon as they give us a statement, well let you know.

via HTC: No more locked bootloaders | Android Central.

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