Thanks for those on this forum that have already helped me get my 3.52 era laser working. I'd like to upgrade to 4.01 but can't find the software. Seriously doubt FSE is going to provide it.

Based on the FSE forum it looks like I need:
FSELaserFirmwareUpdate.exe

And the firmware file itself.

I'm assuming after that I can upgrade to the latest version-- but not sure if addl firmware is n

www.fullspectrumengineering.com ? View topic - Trouble with upgrading to new version/firmware
Seems to suggest I might need 4.13 after that...