OK. So I connect to computer then Power + vol up and I get a splash - release power and slide to vol down and I get HBOOT. So far so good.
Try - fastboot oem rebootRUU - and get "waiting for device". Fastboot does NOT show fastbootusb. So try going to recovery and I get a splash but no TWRP screen just a battery with a red triangle and red exclamation mark.
In the past few hours of trying to locate a solution for this problem I found "Red triangle means that no custom recovery is installed."
Well it WAS installed and working just fine. I have TWRP in my fastboot directory but the phone isn't being recognized so I can't reflash it.
If someone could point me in the right direction I'd be ever so grateful
UPDATE - Took my original RUU (0P6BIMG_M8WHL_1.54.651.8_firmware.zip) renamed it to 0P6BIMG.zip and put it on my external sd card formatted to fat 32. Booted into HBOOT and got the following -
Model ID incorrect!
Press POWER to reboot