sounds like makibox all over again.

Their money got used up by all the replacements and shipping and unanticipated labour costs, in the end they sold all their inventory to pay off debtors.
Leaving me in the weird position of knowing the printer I'd bought was in the uk - but being sold off to someone else.

Your option is pretty simple.
Get a replacement printer. It might work - or you can use it as a base and if it doesn't work - fix it :-)
Or sell it on ebay for spare parts to someone else with a broken micro.