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How to Unlock Bootloader on Nexus

In this article  i will show you How to Unlock  Bootloader on Nexus 5, Nexus 7, Nexus 6, Nexus 4 and Nexus 10.

How to Unlock  Bootloader on Nexus

Why do i have to unlock boot loader ?

By unlocking your Nexus your bootloader it allows you to install custom OTA firmwares, just like the one  which you will install later in this article.

If you haven’t already 

>Download Android SDK> Unzip and install.

By downloading this software, you will get

  • Android SDK Tools
  • Android Platform-tools
  • The latest Android platform

If you haven’t already 

> For Android SDK to work properly you need to download Google USB driver 

or

> Launch the Android SDK Manager- SDK Manager.exe,   >Expand Extra tab >Check and install  Google USB Driver package

How to Unlock Bootloader on Samsung Galaxy

How to Unlock Bootloader on Samsung Galaxy

The Google USB Driver is  needed only for windows users , it is needed to  perform adb

By downloading Google USB driver, it enables your Android phone to communicate to Android Platform-tools , so that you can Unlock your  boot loader on your  Nexus effectively .

> If you do not have Java installed, you need to download Java for Android SDK package to work

>Connect Your nexus to the PC

> Make sure USB debugging mode is enabled, Go to settings >Developer option> USB debugging mode check

>Turn off your Nexus

>Boot in Fastboot  -Most Nexus Fastboot mode is access by (holding power button+ vol UP + vol DOWN)

How to Unlock Bootloader on Nexus

How to Unlock Bootloader on Nexus

Boot in Fastboot With Different Nexus Devices

Device Keys
hammerhead Press and hold both Volume Up and Volume Down, then press and hold Power
flo Press and hold Volume Down, then press and hold Power
deb Press and hold Volume Down, then press and hold Power
manta Press and hold both Volume Up and Volume Down, then press and hold Power
mako Press and hold Volume Down, then press and hold Power
grouper Press and hold Volume Down, then press and hold Power
tilapia Press and hold Volume Down, then press and hold Power
phantasm Power the device, cover it with one hand after the LEDs light up and until they turn red
maguro Press and hold both Volume Up and Volume Down, then press and hold Power
toro Press and hold both Volume Up and Volume Down, then press and hold Power
toroplus Press and hold both Volume Up and Volume Down, then press and hold Power
panda Press and hold Input, then press Power
wingray Press and hold Volume Down, then press and hold Power
crespo Press and hold Volume Up, then press and hold Power
crespo4g Press and hold Volume Up, then press and hold Power


> Go to your platform-tools directory, the same directory where you installed SDK package

How to Unlock Bootloader on Nexus

How to Unlock Bootloader on Nexus

>Hold Shift and Right Mouse button for 4 seconds then release

>A pop up box will appears, click on “Open Command Prompt here”

How to Unlock Bootloader on Nexus

How to Unlock Bootloader on Nexus

It is important to backup your files, because once you unlock your Nexus Bootloader  all the  data on your phone will be  erased

>Type

fastboot oem unlock

Capture D'écran003

>Confirm On your Nexus Phone, using the volumn up and down and power button to select.

>Remove your USB Cable then reboot your Phone. Not in fastboot

On the Nexus 10 ,after you have unlocked your bootloader, the internal storage will be unformatted and you  must format it with this codes in the same CMD, Only if you have a Nexus 10

fastboot format cache
 fastboot format userdata

You are finished Unlocking your Nexus

 

 

How to lock  Bootloader on Nexus?

The Bootloader can left unlocked but it is recommended to lock your bootloader for security and privacy reasons

To lock back your Nexus 4/5/6/7/10 Bootloader :

>Enable USB debugging mode-(Found above)

>Connect Nexus to Pc

>Turn off phone

> Boot in Fastboot  (holding power button+ vol UP + vol DOWN)

>On the same folder where you installed the SDK package

how to boot nexus 7/5/4 into bootloader

Capture D'écran002

>Hold Shift and Right Click  for 4 seconds then released.

>”Open Command Prompt here”

>Type

fastboot oem lock

You are done locking your nexus bootloader

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