Can Anyone Fix This Savegame?

[sasan50cent]

hi.
when i go to car lot game will exit without any errors.
can anyone fix it for me?
http://rapidshare.com/files/3305601/SASAN.rar.html

[Ceano]

hi.
when i go to car lot game will exit without any errors.
can anyone fix it for me?
http://rapidshare.com/files/3305601/SASAN.rar.html

Did you add a car direct in to the garage? If so that you cant do at the moment because the game will crash for no reason, we need a check sum tool to be able to add cars direct in to the career garage. The only solution is to remove the car you did add, or you have made a backup of your working save (as every one should know to have by know )

[sasan50cent]

yes i add a car direct to the garage.
it's plymuth roadrunner.
how can i fix it now?

[Ceano]

yes i add a car direct to the garage.
it's plymuth roadrunner.
how can i fix it now?

Well i don't think it is any way to fix the save before we can fix the check sum, sorry!

[cparty]

I didn't check it thoroughly, but I fixed 2 damaged carcodes. It seems to work fine again.
http://rapidshare.com/files/3371317/ASA ... d.rar.html

Oh, and don't forget to make a backup copy of the savegame before doing any editing

yes i add a car direct to the garage.
it's plymuth roadrunner.
how can i fix it now?

Well i don't think it is any way to fix the save before we can fix the check sum, sorry!

Of course it is more convenient to edit the savegame, but don't forget what you would have been able to do with a hexeditr & checksum fixer on the savegame can always be done in memory using a memory editor - the game will write the correct checksum for you.

greets
cparty

[Ceano]

Of course it is more convenient to edit the savegame, but don't forget what you would have been able to do with a hexeditr & checksum fixer on the savegame can always be done in memory using a memory editor - the game will write the correct checksum for you.

greets
cparty

I always edit the memory never the save, but still you cant add cars direct in to the career garage, if you do you get an immediate game crash.

[sasan50cent]

Hey cparty, Nice work man thanks.
I dont remember to ackup my save every time!.
Thanks.

[cparty]

I always edit the memory never the save, but still you cant add cars direct in to the career garage, if you do you get an immediate game crash.

Well you can, but of course you need to add the appropriate career and customization slots as well or the game will crash just like it does for invalid car codes. But its easier to add it to the lot, buy it and let the game add all the needed stuff

[Ceano]

I always edit the memory never the save, but still you cant add cars direct in to the career garage, if you do you get an immediate game crash.

Well you can, but of course you need to add the appropriate career and customization slots as well or the game will crash just like it does for invalid car codes. But its easier to add it to the lot, buy it and let the game add all the needed stuff

OK so that is what check sum does then? add the appropriate career and customization slots if you add a car to the career garage.

[cparty]

The checksum is a fingerprint of the bytes in your savegame which is used to recognize any damage a savagame could have taken (or a modification on it).
When adding a car to your garage and you do not add a career slot, the game will try to load the careerslot and crash because it doesn't exists. That's nothing a checksum fixer for savegames could help you with. If you do any illegal changes in memory and save the game, the checksum will be correct because it is computed by the game from the actual data, but it will still crash the game when switching cars (the game doens't know what to do with the bad data).
If you add the car to the carlot and buy it from there, the game will create a valid customization and careerslot for you, which minimizes the risk of a bad code when you make the slots yourself.

Greets
cparty

[gnagna2000]

heya cparty, you're there too
i'm trying to figure out how the checksum is computed

[cparty]

hey gnagna2000
Here is the info from Code Ripper about the unused CRC in MostWanted. Maybe it can give you some idea, but it looks like Carbon is using something different. Either they moved the MD5 or dropped it completely.

Code: Select all

The savefile is protected aginst damage/hack with the custom
variation of the CRC32 checksum and MD5 hash, however it
seems the game does not make any use of CRC32 checksums,
but that requires in fact a more detailed investigation.

Savefile itself consists of the header, data block and MD5 hash
of that data block. File layout is as follows (all fields are
stored in little endian format):

offset  field        length  value
------- ------------ ------- -------------------------------------
0       magic        4 byte  'MC02'
0x4     file_length  4 byte  total file length in bytes
0x8     unknown1     4 byte  usually 8
0xC     data_length1 4 byte  saved data length (including MD5 hash) ?
0x10    crc32_blk1   4 byte  crc32 of a 8-byte data block at offset 0x1C
0x14    crc32_data   4 byte  crc32 of a saved data (offset 0x24 till the end of the file)
0x18    crc32_blk2   4 byte  crc32 of the above data (0x18 byte block from the file beginning)
0x1C    unknown2     4 byte  usually 0x10D
0x20    data_length2 4 byte  following block length ? usually equal to data_length1
0x24    unk_3        1 byte  zero (16-byte zero block)
....    unk_n                zero
0x34    saved_data           beginning of the saved data
....    ..........           data
0xF85C  MD5_hash     16 byte MD5-hash of the saved data (offset 0x34 till the end-16 bytes)

As you can see there are 4 checksums, but it seems that the game
uses only the MD5 hash to make the conclusion that the file was
not altered in any way.

EA's CRC32 algo uses a table, the sample code is following:

DWORD EAcrc32(void *pData, DWORD cbData)
{
	DWORD crc32 = 0;
	BYTE *pbyData = (BYTE *)pData;
	
	if ( cbData < 4 )
		return 0;

	crc32 |= (*pbyData++)<<24;
	crc32 |= (*pbyData++)<<16;
	crc32 |= (*pbyData++)<<8;
	crc32 |= (*pbyData++);
	cbData -= 4;
	crc32 = ~crc32;

	while ( cbData-- )
		crc32 = ((crc32<<8>>24];

	return ~crc32;
}

Here is the table:

DWORD EAcrc32tab[] = {
	0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9, 
	0x130476DC, 0x17C56B6B, 0x1A864DB2, 0x1E475005, 
	0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61, 
	0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD, 
	0x4C11DB70, 0x48D0C6C7, 0x4593E01E, 0x4152FDA9, 
	0x5F15ADAC, 0x5BD4B01B, 0x569796C2, 0x52568B75, 
	0x6A1936C8, 0x6ED82B7F, 0x639B0DA6, 0x675A1011, 
	0x791D4014, 0x7DDC5DA3, 0x709F7B7A, 0x745E66CD, 
	0x9823B6E0, 0x9CE2AB57, 0x91A18D8E, 0x95609039, 
	0x8B27C03C, 0x8FE6DD8B, 0x82A5FB52, 0x8664E6E5, 
	0xBE2B5B58, 0xBAEA46EF, 0xB7A96036, 0xB3687D81, 
	0xAD2F2D84, 0xA9EE3033, 0xA4AD16EA, 0xA06C0B5D, 
	0xD4326D90, 0xD0F37027, 0xDDB056FE, 0xD9714B49, 
	0xC7361B4C, 0xC3F706FB, 0xCEB42022, 0xCA753D95, 
	0xF23A8028, 0xF6FB9D9F, 0xFBB8BB46, 0xFF79A6F1, 
	0xE13EF6F4, 0xE5FFEB43, 0xE8BCCD9A, 0xEC7DD02D, 
	0x34867077, 0x30476DC0, 0x3D044B19, 0x39C556AE, 
	0x278206AB, 0x23431B1C, 0x2E003DC5, 0x2AC12072, 
	0x128E9DCF, 0x164F8078, 0x1B0CA6A1, 0x1FCDBB16, 
	0x018AEB13, 0x054BF6A4, 0x0808D07D, 0x0CC9CDCA, 
	0x7897AB07, 0x7C56B6B0, 0x71159069, 0x75D48DDE, 
	0x6B93DDDB, 0x6F52C06C, 0x6211E6B5, 0x66D0FB02, 
	0x5E9F46BF, 0x5A5E5B08, 0x571D7DD1, 0x53DC6066, 
	0x4D9B3063, 0x495A2DD4, 0x44190B0D, 0x40D816BA, 
	0xACA5C697, 0xA864DB20, 0xA527FDF9, 0xA1E6E04E, 
	0xBFA1B04B, 0xBB60ADFC, 0xB6238B25, 0xB2E29692, 
	0x8AAD2B2F, 0x8E6C3698, 0x832F1041, 0x87EE0DF6, 
	0x99A95DF3, 0x9D684044, 0x902B669D, 0x94EA7B2A, 
	0xE0B41DE7, 0xE4750050, 0xE9362689, 0xEDF73B3E, 
	0xF3B06B3B, 0xF771768C, 0xFA325055, 0xFEF34DE2, 
	0xC6BCF05F, 0xC27DEDE8, 0xCF3ECB31, 0xCBFFD686, 
	0xD5B88683, 0xD1799B34, 0xDC3ABDED, 0xD8FBA05A, 
	0x690CE0EE, 0x6DCDFD59, 0x608EDB80, 0x644FC637, 
	0x7A089632, 0x7EC98B85, 0x738AAD5C, 0x774BB0EB, 
	0x4F040D56, 0x4BC510E1, 0x46863638, 0x42472B8F, 
	0x5C007B8A, 0x58C1663D, 0x558240E4, 0x51435D53, 
	0x251D3B9E, 0x21DC2629, 0x2C9F00F0, 0x285E1D47, 
	0x36194D42, 0x32D850F5, 0x3F9B762C, 0x3B5A6B9B, 
	0x0315D626, 0x07D4CB91, 0x0A97ED48, 0x0E56F0FF, 
	0x1011A0FA, 0x14D0BD4D, 0x19939B94, 0x1D528623, 
	0xF12F560E, 0xF5EE4BB9, 0xF8AD6D60, 0xFC6C70D7, 
	0xE22B20D2, 0xE6EA3D65, 0xEBA91BBC, 0xEF68060B, 
	0xD727BBB6, 0xD3E6A601, 0xDEA580D8, 0xDA649D6F, 
	0xC423CD6A, 0xC0E2D0DD, 0xCDA1F604, 0xC960EBB3, 
	0xBD3E8D7E, 0xB9FF90C9, 0xB4BCB610, 0xB07DABA7, 
	0xAE3AFBA2, 0xAAFBE615, 0xA7B8C0CC, 0xA379DD7B, 
	0x9B3660C6, 0x9FF77D71, 0x92B45BA8, 0x9675461F, 
	0x8832161A, 0x8CF30BAD, 0x81B02D74, 0x857130C3, 
	0x5D8A9099, 0x594B8D2E, 0x5408ABF7, 0x50C9B640, 
	0x4E8EE645, 0x4A4FFBF2, 0x470CDD2B, 0x43CDC09C, 
	0x7B827D21, 0x7F436096, 0x7200464F, 0x76C15BF8, 
	0x68860BFD, 0x6C47164A, 0x61043093, 0x65C52D24, 
	0x119B4BE9, 0x155A565E, 0x18197087, 0x1CD86D30, 
	0x029F3D35, 0x065E2082, 0x0B1D065B, 0x0FDC1BEC, 
	0x3793A651, 0x3352BBE6, 0x3E119D3F, 0x3AD08088, 
	0x2497D08D, 0x2056CD3A, 0x2D15EBE3, 0x29D4F654, 
	0xC5A92679, 0xC1683BCE, 0xCC2B1D17, 0xC8EA00A0, 
	0xD6AD50A5, 0xD26C4D12, 0xDF2F6BCB, 0xDBEE767C, 
	0xE3A1CBC1, 0xE760D676, 0xEA23F0AF, 0xEEE2ED18, 
	0xF0A5BD1D, 0xF464A0AA, 0xF9278673, 0xFDE69BC4, 
	0x89B8FD09, 0x8D79E0BE, 0x803AC667, 0x84FBDBD0, 
	0x9ABC8BD5, 0x9E7D9662, 0x933EB0BB, 0x97FFAD0C, 
	0xAFB010B1, 0xAB710D06, 0xA6322BDF, 0xA2F33668, 
	0xBCB4666D, 0xB8757BDA, 0xB5365D03, 0xB1F740B4 
};

Yep, that's all ;-)

Best regards,
     CoDe RiPPeR

greets
cparty