Pokemon Ultra Sun shows "The save data is corrupted" error

[tuzinpq]

Hello, first time here! I would like some help on solving an issue here with my downloadable version of Pokémon Ultra Sun.
A few days ago, when I opened the game it would start like normal, but now, anytime I try to enter the game, it just shows me this screen saying my save data was corrupted and asks me to read the manual for the game which just tells me to press B+X+Up Button to delete my save data. But I wouldn't like to start things over, you know?
So, I'd like to know if there is a way to play the game as usual and keep my save data or if there's actually no way around. And maybe the reason why this happened.
(Also, I'm not being able to open the Checkpoint backup file I made using PKHex as aparently the size is not supported, probably since it's larger then usual)
I'd be very grateful if anyone would offer to help me!

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Edited February 6 by tuzinpq

[Teamplasma N]

@tuzinpq I’ll help you out with your corrupted Pokemon ultra sun save.

[Teamplasma N]

@tuzinpq can you please tell me how did this happen?

[Kaphotics]

Was able to get it to load after rearranging some data in the file and trimming junk written at the end of the file.

Inventory, Fashion, and LiveMatchData might have issues, but you can probably work around that.

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[tuzinpq]

  On 2/7/2025 at 3:29 PM, Kaphotics said:

Was able to get it to load after rearranging some data in the file and trimming junk written at the end of the file.

Inventory, Fashion, and LiveMatchData might have issues, but you can probably work around that.

main 435 kB · 3 downloads

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Woah! Thank you so much! You just did magic right now! I really thought my save file was gone for good, but no, you really helped me with that one, I appreciate a lot for your kindness.