BenF 3.x FW on new LCD driver devices [flick. screen solved]

I bought a nano v3 when they were fist released some years ago,after mucking around installing Ben F files for months-coming back to forum many many times it worked BUT never would connect to the SD card - which I needed to save auto pattern files.
Found a “FIX” on this site,soldered PCB as instructed,sayonara Nano, chucked it in a box in disgust, its still there,I’m no tech so I should have left it alone I suppose.
Over the years I’ve cooled down,bought a Pico,which is top gear,but carrying a lap top etc is not really portable IMO,I’ve decided to risk my money and try again,are these devices able to be got working again?
I know they have onboard memory now-is it accessible with riminal’s firmware -I think it is?.
Its become difficult [for a non-nerd like me} to sort all the updates out,
I notice Seeed have taken a very backward stance in all this,maybe they can’t write code,or don’t want pay Ben any money?
AES in US sell what appears to be the same product -or a clone maybe foe US$125 I think but freight to Australia is shocking-I bought a $99 book from them -not large,about the size of a large magazine $110 US freight ,a big ask I reckon!
So,can I buy another V3 Nano and expect [if I can sort out all the files that have been updated] and expect it to work,and store and export files without throwing away more money?
Any contributions would be appreciated Thanks Baz