1 Topic by ClaudeSpeed (edited by ClaudeSpeed 2019-04-10 11:33:38)

  • Registered: 2018-09-07
  • Posts: 232

Hi,

I've dumped the PS1 Bios from my PSP. I don't know if there is any use of it here.
Anyway, here's the dump info:

Title    SCPHXXXX.bin
CRC32    cc82b93b
MD5    32c04484c234fd09d79625e9fe2ec232
SHA-1    b8c96eefcaedd3f8ae2a58d71671364703caaa25
Size    524288
Dump method
PSP3004 with CFW (6.61 PRO-C2_22-01-2015)
Dumper BIOS 2.6
VMP2MCR
BIOSmerge 0.2
Dump date    07-Apr-2019

What is interesting is that when I run BIOS dumper on my PSP, it shows the following information :

Region : NTSC J
BIOS version : 4.5
CRC32 : 5660F34F
Date : 05/25/00

I think the difference can come from the file size.
Mine is 524288 byte.
On the Internet, I see a reference of this BIOS and size seems to be 145 KB.

Does anyone have tried the same operation ?
What is the hash obtained ?

  • Registered: 2018-09-07
  • Posts: 232

Issue solved !
I discovered that tool VMP2MCR (Windows) was the faulty part.
Basically, if after converting the first part, you open the part 2 and click convert, the part2 input file was not loaded and part1 was still converted (into part 2).
So the end-result was the 5 parts 1 were merged together.
The solution was to close VMP2MCR after a part was converted and the reopen the application to convert the next part.
Now I get the proper CRC32 !