Hello,

At first I am total newbie in patching nad want to find offset from patch.

As ex. I got:



I opened phone_app.cxc with hex editor , and tryed searching offset 14F23806, but it says 'The file does not contain offset 14F23806.'

What I am doing wrong ;( ?

Please answer!

Minus by the base address or something

Right, but look :

14F23806 - 14000000 = F23806

I go to: F23806

PIC:



And where I can find 00D1 ?? I don't see this really. Please explain!

14F23806: 00D1 00D0

//EDIT--

I found, when I do base - 13FFEFFF (but why that, I searched forums google and doesn't seen sth like this)....

The correct base offset is 13FFF000. So in the case of 14F23806, you need to look at offset F24806 in Winhex (142F23806 - 13FFF000 = F24806)

WRONG

Would be better to explain why he's wrong as well, so it helps the topic starter.

There is only ONE base adress for each platform.

14000000 for DB3210
10000000 for DB3150

in db3210 you need to minus 0x1000 from base adress because 0x1000 is the cxc header size(im very sure on this)

and for db3150 cxc header size is 0x2000

Umm I als think that is wrong because i compared clean phone_app.cxc and patched. And offset was 142F23806 - 13FFEFFF = F24807 or something like that.

Blacklizard is a patch porter so I think he knows what he's talking about.

I see you are trying to open .cxc file in WinHex. So you should minus 14000000, not 13FFF000

Only use 13FFF000 when using smelter

and oboviousy 13FFEFFF is wrong

But why, when I 142F23806 - 14000000 = F23806 .... but ehn 1 was patched with ;c510 SW-R1FA035 ;Whitelist to blacklist , then it wasn't F23806 , that was F24807

The base address is different for different patches I think it depends on what base was used by the original porter

very weird but thanks to all for fast answers.
Cheers

SnZ

You using what to patch your phone_app.cxc?

cxcpatcher (FAR plugin).

Blacklizard is almost correct

CXC RAW Format (Extracted from mbn file with readdb3150) = 0x14000000

CXC (Extracted from A2 Uploader) = 0x14000000 - 0x1000 = 0x13FFF000

DB3150 = 0x10000000
With a DB3150 cxc file you'll need some more work to find your base, browse down until you find following bytes:

18F09FE5 18F09FE5

they are at either 0x1000 or 0x2000 then lets say you find them at 0x1000 then do

0x10000000 - 0x1000 = 0xFFFF000


Regards

Thanks for the info Jock this can come in useful

thanks for the mature answer Jock.

One more info for DB3210, when using .cxc with smelter,

cxc from A2 uploader, loading base is 13FFF000

cxc from read3150, loading base is 13FFE000