Guide To Unlock Bootloader On Sony Xperia Z1 [Official Method].

Unlock Bootloader On Sony Xperia Z1. On this article We will share to you how to unlock bootloader on sony xperia device, excatly on Sony Xperia Z1 device. We can Unlock bootloader on this device use this guide. By unlocking bootloader on the xperia device its possible to install new custom ROM on Sony xperia device. But, you need to know that unlock bootloader is not recomended task for a standar user, because its not needed for normal usage. But now, sony has released great software experiences through their rigorously tested and official software releases. You must be familiar with the risks involved if not, you should not proceed further to unlock bootloader on sony xperia devices.

By unlocking your sony xpe ria device you may void the warranty of your Sony Xperia Z1 devices. You should be aware to be responsibility to all risk, and We does not guarantee the full functionality, or to all risk for any unsigned custom ROM being flashed to your Sony Xperia Z1 device after the boot loader is unlocked.

Make sure your device is Sony Xperia Z1 to follow this instruction guide. Your Sony Xperia Z1 is the smartphone smartphone released on September, 2013. with 5,0 Inchi wide IIPS LCD capacitive touchscreen, 16M colors, work on Android OS, v4.2 (Jelly Bean), upgradable to v5.1 (Lollipop) and supported with chipset Qualcomm MSM8974 Snapdragon 800, Processor Quad-core 2.2 GHz Krait 400, GPU Adreno 330, combined with 2 GB of RAM, 20,7 MP on primary camera and 2 MP on secondary c amera.

Make sure your device is possible to unlock the boot loader using this guide, following the steps below to using service menu on your device :

1. Open dialer on your Sony Xperia Z1 device
2. Now enter *#*#7378423#*#* to access service menu.

   

   dial *#*#7378423#*#*

3. Tap Ser vice info > 

   

   Service info - Sony Xperia Z1

4. Tap Configuration > 

   

   Configuration - Sony Xperia Z1

5. On Rooting Status, Bootloader unlock allowed should says Yes, 



Bootloader unlock allowed - sony xperia Z1

Now, read the instruction guide below carefully to unlock bootloader on Sony Xperia Z1 devices.

Unlock Bootloader On Sony Xperia Z1.

Before you proceed to unlock bootloader, please make sure you do a complete back-up of the system. Because unlock bootloader will force your device to factory reset or hard reset, this cause erase or delete or wipe your personal data account, file stored, and app installed on phone internal memory.  The factory reset will return t he Sony Xperia Z1 device to the factory original condition. In addition, if you have enabled My Xperia, this function must be turned off before you can unlock your device. This is guide step by step :

1. Make sure your device Sony Xperia Z1 is on software build 14.2.A.0.290 (Android 4.3) or later. Unlocking the boot loader on earlier software versions will stop the camera functionality.
2. You must enable Developer Option on this devices, how to do it ?
• Go to Settings
• Tap About phone
• Then on Build number  tap seven (7) times to enable developer options.
3. Enable OEM Unlocking.
• Go to Settings, 
• Go into Developer options and enable OEM unlocking.
4. Then, Visit sonymobile developer website, Here
5. Scroll down this site, until you find the picture shown below.

   

   Unlock Bootloader On Sony Xperia Z1

6. Now select your xperia device on dropdown menu, right here you must select Sony Xperia Z1.

   

   Unlock Bootloader On Sony Xperia Z1
7. And then click continue.
8. Now enter your valid Email Addres to get email verivications.

   

   Unlock Bootloader On Sony Xperia Z1

9. Make sure to check term and conditions.
10. Now, Go to inbox at your email account to proceed, and you will see email like this 

    

    Unlock Bootloader On Sony Xperia Z1

11. To proceed unlocking your bootloader, just click text link : click here to proceed.
12. Now, Enter your IMEI, IDID or MEID number your Sony Xperia Z1 at the form. 
1. To view the IMEI number, you can also open the phone dialer on your device and enter *#06#.
2. Or use this:
• From your Home screen, 
• Tap Find and tap Settings > About phone > Status
• Scroll to IMEI to view the IMEI number.

3. 

   Enter IMEI - Unlock Bootloader On Sony Xperia Z1

13. And then click Submit
14. If you enter right IMEI, you will get your Unlock Code, this same like this picture.

    

    Unlock code - Unlock Bootloader On Sony Xperia Z1

Install the Android SDK and the device drivers.

When you get Unlock Code, now you must install android SDK on your computer, follow the next step here:

1. Download and install android SDK, here
2. If you using windows computer, you need to download and isntall fastboot driver, Here
3. For OSX or linux, you are not required to install any additional drivers.
4. Then on your Sony Xperia Z1 device, turn on USB debugging by :
• Go to Settings > 
• Developer options and 
• Tap to enable USB debugging.
5. 
   

Connect Sony Xperia Z1 To Fastboot.

1. Turn Off your Sony Xperia Z1 device.
2. Then connect a USB-cable to your computer.
3. On your Sony Xperia Z1, press the Volume up button at the same time as you connect the other end of the USB-cable.

   

   fastboot - Unlock Bootloader On Sony Xperia Z1
4. For Windows users, when asked for a driver, point to the usb_driver folder where you placed the android_winusb.inf-file, and select the Android Boot loader Interface-file.
5. When your device is connected, open a command window on your computer and go to the platform-tools folder within the Android SDK folder.
6. Now, Enter the following command:

• fastboot devices

Make sure you have not any error message on this step.

Enter Unlock Code.

1. This very crucial step for Sony Xperia Z1 warranty.
2. So,  If you still want to unlock the boot loader of your device, you can enter the following command :

• fastboot -i 0x0fce oem unlock 0x077C1E5A36F8AEC9

3. Which the bold number is your unlock code.
4. And, once again make sure there is no error message on your computer screen.
5. Done, You have now unlocked the boot loader of your Sony Xperia Z1 device