About serial decode

[Zsyh2619]

My save contains the characters "@-", but no "[]"
eg: '@ugxfw!3FZbO4E7KDiz?KjB9#-hsX3@Ss9dOXsC@_'

in line 66 bits.extend(format(val, '06b')) should it be used '07b', although 85 characters are defined, only the first 64 (0-63) are actually used.

Forgive my poor english

[monokrome]

Do you know which type of item this serial is for?

[Zsyh2619]

Do you know which type of item this serial is for?

No, I just collect by grep @Ug save/* | awk '{print $NF}'
But I find not only ‘Ugr’ is weapon , 'Ugu' 'Ugg' 'Ugf' weapon too, it seems to be determined by the manufacturer

[Zsyh2619]

I compared the serials of more than a thousand weapons today. I find the most critical issue at the moment is to find the correct order of 85 characters. Sadly there are too many combinations. I'm going crazy

[KGausel]

I compared the serials of more than a thousand weapons today. I find the most critical issue at the moment is to find the correct order of 85 characters. Sadly there are too many combinations. I'm going crazy

Can you share your dataset?

[Zsyh2619]

I compared the serials of more than a thousand weapons today. I find the most critical issue at the moment is to find the correct order of 85 characters. Sadly there are too many combinations. I'm going crazy

Can you share your dataset?

weapon.csv
OK, But I only have Chinese data, maybe I can collect some English data next weekend
The data is identified by OCR, and some of the data may be inaccurate.
Hope it helps

[DeadlySaint]

Not sure how helpful it will be for others, but I've been trying to isolate how to modify the weapon/gear level. I picked a Jakob throwing knife since it has very few attributes to it. I stuck with normal as the rarity and bought them from vending machines so the serials are unedited. The only values that changed as I bought them, aside from the amount they sell for, was the level and the damage. Attached is a result set from lvl 2 - 15. Hope it proves useful to someone as I'm unfamiliar with serialization, encodings, and working with bytes etc.

EDIT: Meant normal (white) rarity and not common (green)

Jakob.xlsx

[monokrome]

@DeadlySaint This chapter of my BL4 reverse engineering guide book shows how weapon levels are stored: https://github.com/monokrome/bl4/blob/main/docs/05-item-serials.md#decoded-token-stream (The book is still in development, not 100%, and more of a reference for now - so please don't take it as scripture)

If anyone knows how to map an item to its potential drop pool in the uasset files and/or binary data structures, please let me know btw <3

EDIT: I just realized, glacier's save utility already does level editing on gear. So, that should be sufficient? https://github.com/glacierpiece/borderlands-4-save-utility/blob/main/blcrypt.py#L35