PixelBlaze update download

I need to be able to download a recent stable version of PixelBlaze that I can force onto my PB via the recovery tool. I am not able to update via connection as my PB can’t get past the spinning box. Where do I find the downloadable file in order to do this?

It’s linked in this post:

Choose the STFU file for your version (Pico or Standard).

Thank you and I found it and downloaded then uploaded to my PB however, when energized with button depressed I now get 5 blinks and no action on my display. When just turned on nothing happens which is why I pressed the button. Also when I hold down the button after powering up, PB just continues to blink continuously. Can you tell me what 5 blinks mean or continuous blinking means?