Tips & Tutorials

How to Unlock HTC U12+ Bootloader

As customers get their hands on the new flagship smartphone, find out how to unlock bootloader of HTC U12+ with this guide. HTC’s 2018 flagship has arrived just recently and fortunately enough, the brand is still supporting bootloader unlocks for all consumers. For simple security reasons, all devices are shipped with locked bootloaders but if the user wishes, it can be unlocked easily. Further, the guide ahead includes detailed steps with individual screenshots to help you understand the whole unlock bootloader on HTC U12 Plus smartphone procedure.

There are loads of benefits for enthusiasts once a device’s bootloader is unlocked: firmwares can be flashed onto the smartphone, utilities like ADB and fastboot can be used to their full potential and more. As for the procedure, it is quite simple, all you need to do is follow the steps carefully. We advise first time users to go through the whole guide at least once before starting to actually implement it. Lastly, it is to be noted, an unlock initiates a data wipe so make sure all your existing data is backed up safely.

Unlock Bootloader, HTC U12+

Disclaimer: All the tools, mods or ROMs mentioned below belong to their respective owners/developers. We ( or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial 😉

There are tons of useful articles and how-to guides on Team Android for the , but we think you might be interested in the following posts:

If you plan on rooting this phone or are still confused for why to root HTC U12+, read: Benefits of Rooting Your Android Device.

HTC U12+ USB Drivers

You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download HTC U12+ USB drivers!

Now, let’s proceed with the tutorial below to unlock HTC U12+ bootloader.

How to Unlock Bootloader on HTC U12 Plus

We have put together a detailed step-by-step instructions guide on how to unlock bootloader on HTC U12+. If you are used to unlocking bootloaders on any previous HTC devices, then this should not be any different for you.

Please read every line carefully and make sure you read the tutorial once before actually performing it on your Android device.

To Remember:

  • This unlocking bootloader tutorial is only for HTC U12+. Please don’t try this on any other variants of the phone.
  • This tutorial has been performed on Windows, but anyone familiar with Fastboot on Mac or Linux can perform this as well with the same commands.
  • Make sure you backup all your data in your phone before proceeding as it will erase all data.
  • You will void your warranty by unlocking the bootloader.


  • HTC U12+
  • USB cable
  • Android SDK with drivers (How to set up? Tutorial here!)

NOTE: You need to activate USB debugging before you proceed on your phone. Do that by going to Settings then About Phone and then tapping on Build Number a couple of times. Once done, a new setting will displayed by the name of “Developer Options”. Go to it and then within it, select Enable USB Debugging.

Step 1 – Go to website.

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Step 2 – Click on ‘Register’ and create an account at the HTCDev website.

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Step 3 – Activate your account. Login and go to main page of HTCDev.

Step 4 – Click on “Unlock Bootloader” button and click the “Get Started” button.

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Step 5 – Select “All Other Supported Models” from the dropdown list and then click the “Begin Unlock Bootloader” button.

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Step 6 – Carefully read the warning popup message and then press the ‘Yes’ button.

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Step 7 – Check both the boxes in the Legal Terms popup box. Now press the “Proceed to Unlock Instructions” button.

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Step 8 – Download Android SDK Platform-Tools (Fastboot) if you don’t already have and extract it in C:\ drive (or anywhere in your computer).

Step 9 – Hold the Power button on your HTC device for 10 seconds to completely turn it off.

Step 10 – Now go to Bootloader Mode on your device. How? Press Volume Down and Power to start the device into Bootloader mode.

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Step 11 – Use the Volume buttons to select up or down. Highlight Fastboot and press the Power button to select.

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Step 12 – Connect your HTC device to the computer via a USB cable.

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Step 13 – Now open Command Prompt. How? Click the Start button and type ‘cmd’ (without quotes) and press Enter.

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Step 14 – In the Command Prompt window, type the following command and press Enter.

cd c:\fastboot

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Step 15 – Now type the following command and press Enter.

fastboot oem get_identifier_token

Step 16 – You will see a long string of text (identifier token). What to do now? Open this page on HTCDev.

Step 17 – Now follow the instructions as given there to select and copy text from Command Prompt.

Step 18 – Once copied, paste that identifier token into the box at the bottom of that HTCDev page and then click Submit.

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Step 19 – You will receive an email by HTC (on the registered email) with a link to the second part of the instructions and your “Unlock_code.bin” file attached.

Step 20 – Download “Unlock_code.bin” and save it in your Fastboot folder (C:\fastbooot in our case).

Step 21 – Now type the following command in Command Prompt and press Enter.

fastboot flash unlocktoken Unlock_code.bin

Step 22 – Check your phone. Read on-screen instructions. Press Volume Up to accept and the Power button to confirm.

Backup and Other Important Tips

Done with the USB drivers? Perfect. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps.

Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. Read: How to Backup Android Apps, Text Messages, WhatsApp, Call History.

HTC users can also back up data using HTC Sync Manager to your computer. Sync Manager helps to move data across different Android devices i.e moving HTC 10 backup data to Samsung Galaxy S8.

If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up. [Tutorial: How to Backup Android Phone using TWRP]

A few more optional tips that you should remember:

1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich, Jelly Bean, KitKat and Lollipop.

2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?

4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and phones. We recommend not to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

5. [IMPORTANT] Copy all the backup files from your SD card to your computer as internal memory will be wiped clean while unlocking the bootloader.

If you are a developer and would want to unlock the bootloader, we recommend doing that before you set up the Google Play Store, install apps or anything because the security feature in Android clears out everything from your phone when unlocking bootloader of the phone.

That’s it! Your HTC U12+ bootloader is now unlocked! You can now install a custom recovery, a custom ROM or any system tweak you like. Just be careful with what you do! 😉

About the author

Taimur Akmal

Devoted writer, enjoys developing code. Appreciates excellent food, exceptional coffee and great company. He is also into sublime design and nicely built cars.