Support Required - Bricked my MacBook

[wndsr]

Before anybody says it, yes I knew I was taking a big risk installing a Beta version of macOS.

All was working fine with macOS Sierra until this morning when I created a guest account and it asked me to restart. Did all of that and now I have these error messages.

Won't allow me to book into the installer to wipe the drive and start again.

Any ideas?

Thanks in advance!

 

[wndsr]

All sorted, no idea how but seems to be working... I didn't even try anything new. :/