These are instructions on how to unlock the bootloader of the HTC One M9S smartphone using the fastboot tools on a Windows Computer.

Caution: The HTC One M9S Smartphone powered by Mediatek MT6795 Helio X10 chipset comes with the locked Bootloader. Unlocking the Bootloader on HTC One M9S Smartphone will wipe/delete the data from the device. Therefore, we recommend you take a backup of your data before following the guidelines below.

Unlock Bootloader of HTC One M9S Smartphone

  1. Download and install HTC USB driver on your computer. If in case HTC USB driver is already installed on the computer, then SKIP this step.
  2. USB Logo

  3. Enable USB Debugging on your HTC Device. To enable the USB debugging: Open Settings > Developer Options > USB Debugging > Tap on the Checkbox to Enable it.
  4. (Developer Options is hidden for Android 4.2.2 and above, to make it visible: Go to Settings > About Phone > Built Number > Tap on it for 5-8 times).

    Enable USB Debugging HTC One M9S

  5. Power off your HTC One M9S Smartphone.
  6. Power Off

  7. Now, you need to boot into the bootloader mode. To boot into bootloader mode, Press and hold the Volume Down Key and Power Key (for 4-5 seconds) and release the power key but keep holding the Volume Down key until bootloader mode is visible on the screen.
  8. HTC One M9S boot into fastboot

    In the Bootloader Mode, Highlight Fastboot (using the volume up and down) and press the Power button.

    HTC One M9S highlight fastboot

  9. Connect your HTC One M9S Smartphone to the computer using the USB Cable.
  10. Mobile USB Computer

  11. Download and install the Minimal ADB and fastboot tools on the computer.
  12. Minimal ADB Fastboot Setup

  13. Once the installation process completed, Launch the Minimal ADB and fastboot tools.
  14. Minimal ADB Fastboot Setup Finish

  15. Now, you will be able to see the following command window:
  16. minimal command window

  17. Now, In the command Window, write the following command and press enter: fastboot oem get_identifier_token
  18. HTC One M9S fastboot oem get identifier token

  19. Now, you will be able to see the unlock data (string) that you have to copy. Using the Mouse select the whole unlock data (string) as seen in the below picture:
  20. Select identifier token HTC One M9S

    Once you have selected the unlock data (string), Press CTRL + C from computer keyboard to copy the string.

  21. Open HTC Dev website and Create a new account (If you have an account, then SKIP this step).
  22. Sign In to your HTC Account, and Open the HTC Dev Unlock Bootloader page.
  23. On Unlock Bootloader page, you will find the Supported Devices section on the left side. Under Supported Devices, Select All other supported models. After that, click on the Green Begin Unlock Bootloader button.
  24. HTCDev Unlock Bootloader Select Device

  25. Now you will be able to see pop-up confirmation message Are you sure you wish to continue?, click on Yes to continue the unlocking process.
  26. HTC One M9S Bootloader confirmation

  27. Again you will see a pop-up which prompts to accept legal terms. Tick both boxes and click on the Proceed to Unlock Instructions button.
  28. HTC Bootloader Legal Terms

  29. On the next page, you will be able to see instructions to enter into Bootloader mode on your Phone, which you have to ignore as you have already entered into the bootloader mode in Step#4. Simply, scroll down the page and Click on Proceed to Step 5 button.
  30. htcdev bootloader proceed step5

  31. On the Next Page, Enter the Copied Unlock Data (string) into the My Device Identifier Token Area and click on Submit Button.
  32. HTC Identifier Token

  33. Now, HTC will send you the Unlock_code.bin file on your registered Email ID (through which you have logged in Step#12).
  34. HTC Unlock Code Bin

  35. Download Unlock_code.bin file on your computer and Move it to the Minimal ADB and Fastboot folder (C:Program Files(x86) > Minimal ADB and Fastboot).
  36. Unlock code.bin placed in root folder

  37. Once you have successfully moved the Unlock_code.bin file, Open the Command Window and type the following command: fastboot flash unlocktoken Unlock_code.bin
  38. HTC One M9S unlock token command

  39. Now, you will get the success message in the Command Window:
  40. HTC Unlock Code Flash Success

  41. On the Mobile Screen, you will be asked to Confirm to Unlock the Bootloader (use Volume Button to Highlight Yes and press the Power Button to Select).
  42. HTC Unlock Bootloader Yes

  43. Once you have selected the Yes, your device will reboot and take a few seconds to boot.
  44. Congratulations! You have successfully Unlocked the Bootloader of your HTC One M9S Smartphone.


[*] Caution: Unlocking the Bootloader will delete/wipe your data, including contacts, pictures, apps, etc., from your device. So, backup your data before following the above tutorial.

[*] Once you have successfully unlocked the bootloader of your HTC device, you may get the Warning Bootloader Unlocked message whenever you start or restart the device.

[*] HTC Stock Firmware: If you are looking for the original firmware for your device, then head over to Download HTC Stock Firmware page.

[*] HTC USB Driver: If you are looking for the original USB Driver for your device, then head over to Download HTC USB Driver page.