PKHeX error message on otherwise perfectly fine Sapphire save?

[hammy426]

In the past, PKHeX has worked more than fine for me in terms of opening the Gen III files, but as of late hasn't been responding when I open them.

I have been getting the same message no matter which games files I try to open: "Attempted to load an unsupported file type/size. This could be caused by loading a different generation file on an unsupported generation or the file is corrupt."

I know my file isn't corrupted, and I know I'm opening in the right generation settings in PKHeX. Most queries I see about this error on the forum have been for more recent games, and I know the file works in-game and has in the past. I play the copy on a flashcart but have been transferring the save to my computer and opening it from there and the error occurs no matter which game save file I try to use. Is there something I'm missing?

Pokemon Sapphire.sav

Edited February 21, 2023 by hammy426

[SkyLink98]

Your save file has apparently 0x2000 additional bytes. Maybe your emulator or flashcard added a footer or something. Just crop the last 0x2000 bytes with any hex editor (I use HxD), and you can load it into PKHeX with no issues.

Pokemon Sapphire_cropped.sav

[hammy426]

16 hours ago, SkyLink98 said:

Your save file has apparently 0x2000 additional bytes. Maybe your emulator or flashcard added a footer or something. Just crop the last 0x2000 bytes with any hex editor (I use HxD), and you can load it into PKHeX with no issues.

Pokemon Sapphire_cropped.sav 128 kB · 5 downloads

God, thank you so much! This really is Baby's First Hex Editing for me, so I really appreciate having someone who knows what they're doing explain it lol. Thanks!