Q: Can I lock the bootloader again? A: Yes, you can lock the bootloader again using the fastboot oem lock command, but this may not be possible if you've made significant changes to your device.
Q: Will unlocking the bootloader improve my device's performance? A: Unlocking the bootloader itself may not improve performance, but installing custom ROMs or kernels can potentially enhance performance. nokia 3.4 unlock bootloader
By following this guide, you should be able to unlock the bootloader on your Nokia 3.4 successfully. Happy modding! Q: Can I lock the bootloader again