Default Settings

Tsukasa · Post by **Tsukasa** » Thu Aug 17, 2006 11:26 pm

Hi,

Many of you know (everybody? =) that the option "Restore default settings" let your PSP resotre alle the flash1 settings.
BUT:

Where do the PSP get the information for the default settings?
For example the japanese PSP sets the Tokio Time Zone as the default time Zone. The european one sets Brussels as the default time zone. As well as the language.

Where do the psp store that information and is it possible to change/patch that?

BTW: The default button assignment is as well somewhere stored.. :/

Thanks in advance ^^"

sg57 · Post by **sg57** » Fri Aug 18, 2006 12:23 pm

I, too, would like to know :) No doubt encrypted so you can't really edit it with breaking that signiture?

groepaz · Post by **groepaz** » Fri Aug 18, 2006 7:14 pm

i think that kind of info is stored in the idstorage area of the flash...and yeah its encrypted/signed so you can not change it.

Tsukasa · Post by **Tsukasa** » Fri Aug 18, 2006 8:18 pm

hm.. mybe it's possible to replace this? For example to "patch" a japanese psp to an european psp?

groepaz · Post by **groepaz** » Fri Aug 18, 2006 8:19 pm

sounds like a good way to get a nice brick :=)

Tsukasa · Post by **Tsukasa** » Fri Aug 18, 2006 8:21 pm

lol.. ^^" okay, was just a guess :D

Tsukasa · Post by **Tsukasa** » Fri Aug 18, 2006 8:49 pm

http://forums.ps2dev.org/viewtopic.php?t=5512

Code: Select all

IdStorage key 0x045 &#58; &#91;?&#93;
00D4400-03 &#91;PSP-1000&#93; * 00 &#91;PSP-1001&#93;, 02 &#91;PSP-1006&#93;
00D4401-000100...00

Code: Select all

IdStorage key 0x050 &#58; Serial No.
00D4200-xx...xx * 30...30 &#91;new ver psp&#93;
00D421E-01 * 02 &#91;new ver psp&#93;
00D421F-03 &#91;PSP-1000&#93; * 04 &#91;PSP-1001&#93;, 0A &#91;PSP-1006&#93;

It seems to me that this is, wehere the PSP get the default information, when you restore the default settings - and it doesn't seems encrypted to me ^^".

So is it possible to change a byte in the idtorage without getting a brick? Or did Sony use just another checksum to prevent this.. like everytime :D