[How to] Unlock the Nexus 9 Bootloader and Root

qbking77

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Dec 2, 2010
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Last edited:

Deltadroid

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Apr 19, 2013
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I wonder what HTC means when they say ,"this *may* void your warranty" when unlocking the bootloader. Did the all the other nexus devices say that in the bootloader before they were unlocked?
 

Deltadroid

Recognized Contributor
Apr 19, 2013
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I guess it's fine as long as it's not being permanently marked with some bit set somewhere so their service department can see. The device can be locked again.
 

qbking77

Senior Member
Dec 2, 2010
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I wonder what HTC means when they say ,"this *may* void your warranty" when unlocking the bootloader. Did the all the other nexus devices say that in the bootloader before they were unlocked?
They did. Although you can just type fastboot oem lock and it should relock the bootloader without wiping any data.
 

mrkvchm

Member
Oct 21, 2014
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Will wait till root is available to unlock it
No way. Unlocking wipes the device, but rooting doesnt. I plan to unlock mine the second I get it. That way I can start loading data and stuff onto it and start using it. Then, when root is available, I don't have to wipe my data at that point to do it becuase I was already proactive about unlocking the bootloader.
 

berendspruijt

Senior Member
Sep 8, 2012
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Hey everyone, made a tutorial showing how to unlock the bootloader on your Nexus 9! I'll make rooting videos and more soon enough.
Hope they help.

How to unlock the bootloader:
https://www.youtube.com/watch?v=AJEORWbf658

Unboxing and hands on:
https://www.youtube.com/watch?v=8K5WAmwRH7o
Hey great tutorial!
I got 1 problem.
I installed the latest android the latest sdk of android on my pc.
Followed the tutorial from you to setup adb. although its from 2011
and when i tried to do: 'adb devices' nothing happened.
The list stayed empty and my nexus 9 didn't have a pop up.

I had the nexus 9 unlocked with the screen on.
 

USBhost

Recognized Contributor
Oct 23, 2013
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Hey great tutorial!
I got 1 problem.
I installed the latest android the latest sdk of android on my pc.
Followed the tutorial from you to setup adb. although its from 2011
and when i tried to do: 'adb devices' nothing happened.
The list stayed empty and my nexus 9 didn't have a pop up.

I had the nexus 9 unlocked with the screen on.
Same there win 8
But I unlocked it
On Ubuntu
 

mrkvchm

Member
Oct 21, 2014
43
5
28
Hey great tutorial!
I got 1 problem.
I installed the latest android the latest sdk of android on my pc.
Followed the tutorial from you to setup adb. although its from 2011
and when i tried to do: 'adb devices' nothing happened.
The list stayed empty and my nexus 9 didn't have a pop up.

I had the nexus 9 unlocked with the screen on.
If you're on Windows, it could be a driver problem. You can check on it in Windows device manager. If you need to install the driver, Open the Android SDK manager and make sure the USB driver is installed, and install any available updates. If that doesn't work, you can find the Google nexus USB driver by itself and install it using the windows device manager. You can search for the relevant step by step guides here on the forum or elsewhere online.
 
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mk92595

Senior Member
Aug 23, 2012
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No way. Unlocking wipes the device, but rooting doesnt. I plan to unlock mine the second I get it. That way I can start loading data and stuff onto it and start using it. Then, when root is available, I don't have to wipe my data at that point to do it becuase I was already proactive about unlocking the bootloader.
I already installed everything I need. also with ADB you can backup apps easily.
 

mrkvchm

Member
Oct 21, 2014
43
5
28
I already installed everything I need. also with ADB you can backup apps easily.
But you'll have to reinstall everything when you unlock the bootloader. I know its not hard to do with ADB, but I don't understand why you'd bother backing up and restoring everything when you can just unlock the bootloader right away and save yourself from wiping to root once you're already established on the device. Well, to each his own I guess.
 

mk92595

Senior Member
Aug 23, 2012
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But you'll have to reinstall everything when you unlock the bootloader. I know its not hard to do with ADB, but I don't understand why you'd bother backing up and restoring everything when you can just unlock the bootloader right away and save yourself from wiping to root once you're already established on the device. Well, to each his own I guess.
I already have my Nexus 9. Everything is already installed.
 
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