Re: DaVinci Junior cartridge reset
I have two photos of my NFC data from a specific roll from different times and page 9 is the same. Page 9 contains ASCII for numbers that are part of the serialnumber of the roll. I doubt it changes the serial number. The only pages that are different on those photos are page 20 to 23. Page 20 is the remaining length. Page 21 we now know how to calculate as I've figured it out. Page 22 I think I figured out how to calculate one of the four bytes but they other three doesn't follow the same pattern. Page 23 I haven't looked at much yet.
From what I've observed the only thing changing is page 20 to 23 and at least we know the 200m reset values for them. Some here claim we also have page 21-23 for 300m but so far I have not been able to find them in the forums.
Swapping chips should work if we just reset page 20-23 unless the printer and/or software goes online to get blacklisted chips.
EDIT: It turns out my theory for the one byte in page 22 wasn't. Page 1 theory still holds though.