PS£ firmware update not working

PS3 Update from here not working.
Latest RPCS build
Core i7 8750H
16GB
nVidia 1060

It gets to 4% and stops with error:
{Firmware Insataller} Unhandled exception of type 'class std:logic_error': fs:file is null

I've tried to download several times and retried the update but it won't work.
Is there a solution? Or have Sony blocked the emulator?

Thanks for your help