Hi I know this is sold but maybe you can contact the seller ref this reproduction
https://www.ebay.co.uk/itm/Flicker-...235826?hash=item3db2e325b2:g:yA8AAOSw2XZf62uH
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Looking at his feedback he has sold a few
No problem hopefully it will makes your Picasso IV whole again
Tim, he has also Firmware upgrade chips. I saw your old thread, where are you looking for one. If you still didn't fix it?!