I had something similar which my USER partition has entropy fail when it comes to BIS KEY 3 so I checked this post:
gbatemp net/threads/n-switch-complete-erase-nand-and-rebuild.540320
PS. can't post link coz I'm new.
The important part, copy and pasted from the post, above:
Step 0: THIS COULD CORRUPT YOUR BACKUP IF SOMETHING GOES WRONG, MAKE SURE YOU HAVE AT LEAST PRODINFO, BOOT0 AND YOUR GAME SAVES. I am not an expert, so your run this guide at YOUR OWN RISK!
Step 1: Dump all your BIS keys with biskeydump and save them somewhere safe. You will need them.
Step 2: Open your nand backup in hacdiskmount.
Step 3: Double-click on the user partition and input your bis keys, test and save them.
Step 4: Mount the User partition after you input the keys. Copy all the files inside to a folder.
Step 5: Copy everything into a folder. It should not take too much space, as all games should be deleted.
Step 6: Unmount the disk and remove your bis keys.
Step 7: Mount the disk without the BIS keys, do a full format or diskpart clean all
Step 8: Put the BIS keys back, DO NOT CLICK TEST, and mount it again and do QUICK FORMAT, fat32 16k allocation size, and put your files back. Unmount.
Step 9: Zip the backup and it should compress much better.
I suppose this can work on USER and SYSTEM since they are generic but DON'T DO THIS ON PRODINFO OR PRODINFOF.
Perform these step then went on with ChoiDujour which made a semi-successful boot. That is it boot with error code:2002-0002
EDIT: the reason I say you shouldn't do this to PRODINFO and PRODINFOF is because those contains console specific information. I believe, correct my if I'm wrong, something like incognito may delete these but console still works. This means if you format this part of console, it may work but definitely no online. I suppose offline is better than a brick but MAKE SURE YOU MAKE BACKUP before trying.
gbatemp net/threads/n-switch-complete-erase-nand-and-rebuild.540320
PS. can't post link coz I'm new.
The important part, copy and pasted from the post, above:
Step 0: THIS COULD CORRUPT YOUR BACKUP IF SOMETHING GOES WRONG, MAKE SURE YOU HAVE AT LEAST PRODINFO, BOOT0 AND YOUR GAME SAVES. I am not an expert, so your run this guide at YOUR OWN RISK!
Step 1: Dump all your BIS keys with biskeydump and save them somewhere safe. You will need them.
Step 2: Open your nand backup in hacdiskmount.
Step 3: Double-click on the user partition and input your bis keys, test and save them.
Step 4: Mount the User partition after you input the keys. Copy all the files inside to a folder.
Step 5: Copy everything into a folder. It should not take too much space, as all games should be deleted.
Step 6: Unmount the disk and remove your bis keys.
Step 7: Mount the disk without the BIS keys, do a full format or diskpart clean all
Step 8: Put the BIS keys back, DO NOT CLICK TEST, and mount it again and do QUICK FORMAT, fat32 16k allocation size, and put your files back. Unmount.
Step 9: Zip the backup and it should compress much better.
I suppose this can work on USER and SYSTEM since they are generic but DON'T DO THIS ON PRODINFO OR PRODINFOF.
Perform these step then went on with ChoiDujour which made a semi-successful boot. That is it boot with error code:2002-0002
EDIT: the reason I say you shouldn't do this to PRODINFO and PRODINFOF is because those contains console specific information. I believe, correct my if I'm wrong, something like incognito may delete these but console still works. This means if you format this part of console, it may work but definitely no online. I suppose offline is better than a brick but MAKE SURE YOU MAKE BACKUP before trying.
Last edited by Viet1997,
