127w ago - Just under a week ago we reported on news of a successful PS3 downgrade from 3.55 to 3.41 Firmware, however, it ended up not being reproducible until a PS3 3.55 to 3.41 Firmware Downgrader arrived today courtesy of solidpsycho through a guide from AmazingLarry.
To quote: Here is a patched 3.41 that allows you to downgrade. I patched the info0 to 356, and I also used Warrens method to bypass the br drive during the update. I have tested this on both of my PS3's and haven't run into any problems.
3.55 Downgrade has been confirmed on both FAT and SLIM consoles.
Please note you CANNOT use these files if you bought a PS3 that came stock with FW 3.50. DO NOT DO IT. STOP NOW.
133w ago - Earlier today the PS3Break PS3 Downgrader was announced, and now the x3Max Team has made available a video of their PS JailBreak clone PS3 modchip dongle in action running PlayStation 3 homebrew on Firmware 3.50 without downgrading!
To quote from kbx.org (linked above): I was talking to one of the support staff from x3max and they notified me about their new downgrader which they are going to release later today. They have provided me with a video which shows the x3downgrade. I will update the blog when they send me files.
Seems like they got an device which can run homebrew on 3.50 but i think they are releasing an downgrader as well as the support guy told me.
Finally, from the video's caption: The 3.50 firmware is now Jailbreaked, no more need to downgrade !
The dongle can launch homebrews on PS3 with 3.50 firmware, without downgrade !
135w ago - Just a few days back we saw a video of PS Downgrade software by the PSJailBreak Team in action, and today graf_chokolo has posted on xorloser's blog (linked above) that he has decrypted PS3 Firmware 3.50 and while it's still a WIP it could very well lead to a free public PlayStation 3 downgrader alternative.
To quote: I am able now to decrypt and decompress CORE_OS_PACKAGE.pkg from PS3 PUP-Files. The decrypted and decompressed package is a copy of FLASH region where all the important SELFs and isolated SPUs stored, e.g. lv1.self or isoldr.
So, now i could downgrade PS3 by writing this decrypted image to FLASH manually, without Update Manager from HV. In fact, Update Manager just do this But the problem is, that the SHA-1 hash values for these files are stored not in flash but in SC EEPROM and i don't have access to it yet