Are you at least able to see if the device is in CrashDump mode or stuck in 'fastboot mode'?
Black screen, no response from any buttons. No vibration, nothing. I've been trying to get it into EDL mode to reflash with the msm tool. It seems to be truly bricked.
Spent several hours holding different buttons down and plugging and unplugging from the computer. Normally holding both volumes while plugging in to the computer will start EDL mode, but no luck
I think build in data/ system file of recovery is empty
Completely discharge it, and then try the MSM tool.
The problem is that in op8 techpack/display a configuration entry is missing, you can fix it with this commit.