How to Unlock Bootloader on Ulefone S1

Disclaimer: This guide is provided for informational purposes only. WhatMyDevice is not responsible for any damage, data loss, or voided warranties resulting from following these instructions. Proceed entirely at your own risk. Always verify instructions against your device's official documentation.
Ulefone S1

Ulefone S1

OS: Android 8.1 Oreo (Go edition)
Screen: 5.5 inches, 78.1 cm2
Resolution: 480 x 960 pixels, 18:9 ratio (~195 ppi density)
Battery: 3000 mAh
Storage: 8GB
Chipset: Mediatek MT6580 (28 nm)
No unlock instructions available for this device yet.