[RELEASE] Grand Theft Auto V Save Checksum Fixer Tool

Hello xboxmb today I will be releasing a checksum fixer tool for GTA V…

Since iH8 Fr0st released his tool to decrypt saves might as well release this because without it you can’t do anything.

First of all, to use this tool you will require some knowledge of hex editing “not much”, but some.

Ok here are the steps:

  1. Decrypt your save data using iH8 Fr0st decrypter tool and drag and drop it to a hex editor
    the top should look like this http://puu.sh/4wMDo.png, if not you did something wrong.

  2. Make whatever edits you want to the save like money, stats, etc… After you have done that save the changes and you should now fix the checksum since you modified the file. Scroll all the way to the bottom of the hex editor and the save should look like this http://puu.sh/4wMHT.png. Ok there should be 15 p’s. … Delete those http://puu.sh/4wMMX.png selected bytes and there supposed to be 3 p’s left like this http://puu.sh/4wMPh.png.

  3. Now you save the file in the hex editor and drag and drop the save to my exe. It should say that it has fixed the checksum successfully.

  4. Drag and drop the save to the hex editor again and add the p’s that you have deleted earlier.

  5. Re-encrypt the save using iH8 Fr0st tool.

  6. Have fun modding GTA V!

I would like to thank Jakes625 and Aerosoul94 for all being part into making this tool <3 .

Tutorial by Hova :smiley: :

If you get an error about MSVCP110.dll missing you need to download Visual C++ Redistributable:
Download Visual C++ Redistributable for Visual Studio 2012 Update 3 from Official Microsoft Download Center

UPDATE DOWNLOAD LINK: http://www.mediafire.com/download/mn4rngvh8e9kpww/gtav_checksum_fixer_release.exe

Virus Scan (1 false positive):
https://www.virustotal.com/en/file/88fbeadf2c7e9b54b3d5ad6386962a0d828db5491e932fce80712a8995005afa/analysis/1379791091/

What can you mod on GTA V so far?

Confirmed working.

I have only edited the money so far…

Money, Ammo, Guns, Stats, Health ect.

wouldn’t even know where to look

tutorial maybe?

Open the decrypted save in a hex editor and search whatever you want.

I did money for example:

Hmm, what files you decrypt? Do you use horizon to get them?

My screen from horizon:

Extract this file:

:thumbsup: yes! i get file starting with “PSIN…”

What do you do if you don’t get the “PSIN” in the first line?

Hmm, i have only 3 p’s at the end of file, so i don’t need to fix checksum? :expressionless:

Are you opening the auto save save?

so just drag and drop to the tool if you already have 3 p’s at the end, you don’t have to delete or add any p’s :thumbsup:

Follow instructions from first post in this topic:

Ok here are the steps:

  1. Decrypt your save data using iH8 Fr0st decrypter tool and drag and drop it to a hex editor
    the top should look like this http://puu.sh/4wMDo.png, if not you did something wrong.

:stuck_out_tongue:

No, i disable auto save. I check all my 5 saves, all of them have only 3 p’s at the end.

P. S. i’m using game downloaded from torrent :worried:

Look at my post above ^

Sexy. Anyone got a list of offsets? :smile:

Ok, but first of all i need to find where is money value in this file :smile: