The HONOR 6 Plus, released in late 2014, was a flagship killer of its era, boasting a dual-camera setup and a premium build. For enthusiasts and developers, unlocking the bootloader is the first step toward true Android customization—installing custom ROMs (like LineageOS), gaining root access, or flashing modified kernels.

Once you have your 16-digit code, you need to put the phone into a state where it can accept commands. Power off your HONOR 6 Plus completely.

For a while, an exploit named “Potatonv” could unlock HUAWEI bootloaders on Android 5/6 without a code. This required a rooted phone (paradoxical, since you need unlock to root). It involved kernel vulnerabilities and is largely patched or obsolete for the HONOR 6 Plus.

Connect your phone in "Manufacture Mode" (dial *#*#2846579#*#* , go to Project Menu > Background Settings > USB Ports Settings > Manufacture Mode). Use the tool to read the bootloader code. Option B: Bruteforce Tools

fastboot oem unlock YOUR_UNLOCK_CODE