Please help this newbie

[drsnooker]

Well if you know most of the characters, can't you just make a table of all permutations of the possible passwords and try them one at a time. It's not cracking the hash or using hashcat, but it might allow you to get your pictures back....

That's a good idea, but there are too many permutations (at least thousands) for me to try it by hand.

Well any kind of scripting language can do that for you.... Unless there's a limit how many times you can retry! Even once a minute should get you there in a few days!