Get the JED downgraded and take it from there. The cartridges in the video with JED 2.3 were incapable of loading large CAR files as well until they were downgraded to JED 1.3... I simply never got as far as showing that.

I have no doubt.

Z tym update/downgrade  JED poprzez  Atari i soft FJC  sugeruję bardzo  uważać bo próbowałem to zrobić  . W efekcie  kompletnie zbrickowałem nowe SIDE.  Mam teraz trupka w szufladzie ;)

To elaborate on what Pecus already wrote:

The GoWin-CPLD SIDE 3.2 which is the subject of the video is not compatible with Lattice JED files and anyway lacks the 'Wishbone' interface necessary for JED/bitstream programming via software. Clearly what you have done is brick a SIDE 3.0/3.1 using the Wishbone JED flasher, which - although I pleaded for field-testing of the tool - was apparently tested by no-one but myself and Candle. This situation - while certainly offering further evidence of poor project management and inadequate testing - has no direct relevance to JED upgrades and downgrades on GoWin-equipped SIDE 3.2 cartridges.

At this point, with the product withdrawn, I am sure that those in possession of a Lattice platform cable and in need of a JED file for the purposes of de-bricking could reasonably ask the vendor/manufacturer to provide it, but what the reaction will be if the email is signed 'Yours, Zaxon', I cannot say for sure. :)

I'll be perfectly happy to recover/downgrade/upgrade/whatever any SIDE3, 3.1 or 3.2 cartridge the owner wants to send me, and as I understand it, the manufacturer has offered to perform JED 1.3 downgrades on SIDE 3.2 cartridges as a potential solution to the problems discussed in my video if the user prefers that to a refund.