Well as you seem to hold yourself as one of the big boys it looks like your having a bit of a problem, so not so big after all, maybe spend a bit more time sorting it out instead of piss flapping on here, just a suggestion, Oh and, Thanks accepted
Anyway, moving on, if you still cant get it sorted maybe have a go at this,
use the openSPOT4 recovery application to flash a complete firmware image to the device manually. This will also reset the configuration of the device to factory defaults.
https://public.sharkrf.com/ose-recovery/openspot4-v1-recovery-v2-windows-x86_64.msi
https://public.sharkrf.com/ose-recovery/openspot4-v1-recovery-v2-linux-x86_64.tar.gz
https://public.sharkrf.com/ose-recovery/openspot4-v1-recovery-v2-macos.dmg
In case you can't install/run the app on Windows, please see the Windows installation instructions on the SharkRF Link app page (the Windows installation instructions are the same for both the openSPOT4 recovery app and the SharkRF Link app).
If the recovery software does not see the device then please try using a different USB cable and USB port on your computer. If this does not even help then press and hold both buttons on the device at the same time for 10 seconds to enter it into bootloader mode before using the recovery software. Note that only the recovery software will be able to exit this bootloader mode so do not use this method otherwise.
There has been a time when ive had to hold the button down for around 20 seconds to turn the OS4 off.