PSP 1.5 downgraded to 1.0 firmware!

dzer0 · Post by **dzer0** » Sat Jun 18, 2005 1:21 am

At this site they talk about how they downgraded their 1.50 psp to 1.0. Has anybody tried this method and does it work?

Thanks
d0

0xdeadface · Post by **0xdeadface** » Sat Jun 18, 2005 1:25 am

I only see them talk about running homebrew on 1.5?

0xdf

Shapyi · Post by **Shapyi** » Sat Jun 18, 2005 1:44 am

It just looks like they are comparing 1.00 and 1.50 of the firmware, I don't think they have downgraded it...

Mangus · Post by **Mangus** » Sat Jun 18, 2005 1:57 am

hey guys, its just another noobie who thought dumper means flasher, this is probably the same guy making this post in like 3 other forums i just checked lol :P

greycellgreen · Post by **greycellgreen** » Sat Jun 18, 2005 2:43 am

Oh brilliant. And then Engadget took to reporting it at face value. The amount of misinformation out on 'official' channels is hilarious. My roommate was violently insisting that pirates had made it possible to play pirated UMDs from memorystick a few nights ago. That stemmed from an article that was really supposed to be about a tool dumping UMDs to memorystick.

wulf · Post by **wulf** » Sat Jun 18, 2005 8:27 am

violently? you mean he was throwing stuff and breaking dishes? :)

Smiths · Post by **Smiths** » Sat Jun 18, 2005 5:40 pm

The above poster is right, the page does nothing with flashing the firmware.

What the authors has done, per translation, is used the latest swap "exploit" to load the dumping program onto a 1.5.
This allowed him to dump the 1.5 firmware as it is written to the PSP.

(before all we could do was analyize the eboot.pbp files Sony released)

Now, we can finally compare the 1.0's firmware as written to the 1.5 firmware as written.

According to the page, the author found 2 major difference of concern to him.

One being the /vsh/etc/version.txt, but that's obvious.
The other is the fact that v1.0 has a file that v1.5 doesn't, and vice versa:
Only in 1.50 /flash0/kd: resource
Only in 1.00 /flash0/kd: sysmem_uart4.prx

That's it, nothing more to it. Hooray for google translations, where lines like "The kana where here becomes the just a little air -." = NEWZ