Huawei P9 connection with ADB issue

Hi I have a Huawei Mate 9 which is FRP locked, I have gained the unlocking code from Huawei and have all relevent software and instructions to unlock Bootloader and remove the FRP protecton but I am really struggling with connecting the device in CMD with adb.

I have drivers installed and have allowed connections to phone with HiSuite on device and PC, I am unable to get into Developer settings due to FRP protection bur according to what I have seen in every walkthrough shows that this should not be a problem, even though I am unable to enabe USB debugging. Anyway I did have it connected once but have not been able to since so if anone can tell me where i might be going wrong I would be grateful.

After resetting phone and following instuctions via Huawei to prepare device I hold Vol- and plug in USB to Boot into Fastboot/Recovery mode.
Open CMD and execute Adb.exe in command, after that I enter command \adb devices which gets deamon running but showa no device.
I have tried going into what settings I am able to enter and enable USB in any way possible but still to no joy.

Please can someone help as this is frustrating. Thanks Stew.