How To Unlock Bootloader Of All Google Nexus Devices

1. Before You Begin:By EditAndroid

1. This method works on All Nexus Devices (Nexus One,Nexus S,Google Nexus,Nexus 4,Nexus 7,Nexus 10,Nexus 2013)
2. You need Windows Based PC for this method.
3. Download Nexus USB Drivers & Install them (Connect your device to PC with USB Cable for Complete of installation).
4. Enable USB Debugging of your device.Follow This method if you don't know how to enable.
5. Your Device must be charged 50% minimum.
6. Make a backup of your device's data.

2. Download Required Files:

1. Fastboot+ADB(20926)

3. Unlocking Bootloader of Nexus Devices:

1. Turn Off your device and then Boot it into Bootloader Mode:
2. For Nexus 4 & Nexus 7 (Press & Hold Volume Down + Power Buttons) For Other Nexus Devices (Press & Hold Volume Up+Volume Down+Power Button)
3. Download & Extract Fastboot zip file in Local C drive of you PC.
4. From the Extracted Folder Goto to Win32 Copy all the files and paste them at C:\\fastboot folder (C:\\ is Local Disk C)
5. Now connect you device with PC in Bootloader Mode.
6. Open the folder fastboot from C drive and Press & hold Shift button and press Right Click of mouse and select Open Command Window Here.
7. Now Type in cmd fastboot oem unlock.
8. You shall see a Unlock Page on your device screen.
9. Use Volume Up/Down and Power Button for Confirm unlocking.
10. Your device should reboot now.

Congratsss... Your Device Is Now With Unlocked Bootloader