Terribly sorry, this was a wonderfully classic case of user error - I did indeed miss a step in unlocking the bootloader despite following the steps in this guide 🇩🇪 🇬🇧 How to: ADB/Fastboot (Windows)
Terribly sorry, this was a wonderfully classic case of user error - I did indeed miss a step in unlocking the bootloader despite following the steps in this guide 🇩🇪 🇬🇧 How to: ADB/Fastboot (Windows)