While the device requires the special engineering bootloader first, the final step typically involves the standard command fastboot oem unlock once the phone is in fastboot mode.
Watch your phone screen. Use the volume keys to highlight and press the Power button to confirm your choice. The device will wipe all data and reboot. Troubleshooting Common Errors "Waiting for Device" Message
There was once a free bootloader unlocking service offered by Hikari Calyx, which was planned to support the Nokia 3.4. However, this service was time-limited and is no longer available. nokia 3.4 unlock bootloader
Download the official for Windows, Mac, or Linux.
If you can't unlock the bootloader, you still have options: While the device requires the special engineering bootloader
This is the most reliable method for the Nokia 3.4. Services like TechMesto or Hikari Calyx utilize engineering (prototype) bootloader binaries (abl) to bypass security.
Connect your phone to your PC via a USB cable while holding down the button. Release the button when you see the Fastboot Mode screen. Step 2: Open a Command Window on Your PC Navigate to your platform-tools folder. The device will wipe all data and reboot
They will provide a remote service via ADB.
This occurs when the PC lacks the correct drivers. Open Device Manager on Windows while your phone is connected in Fastboot mode. Look for a yellow warning icon next to "Android". Right-click it, choose Update Driver , and manually point Windows to your downloaded Google USB Drivers folder. Phone Stuck in a Boot Loop