WARNING: Downgrading PlayStation 3 Kills BD Playback

[bandit]

Downgrading your PS3 MAY in SOME cases STOP you from watching any Blu-Ray movies! (Games still work!)

http://i202.photobucket.com/albums/aa112/dcemureviews/ps3downgrade_warning.jpg
http://i202.photobucket.com/albums/aa112/dcemureviews/ps3bdplayback_small.jpg

Quote by garyopa

Ok, we need to work on this Blu-Ray playback it is MAJOR PROBLEM!

I was able to restore one machine I had, by copying over all the files I had in the /dev_flash2 and /dev_flash3 back to the HDD, that I had saved before when it was on v3.41

But that does not help those that were on v3.50 factory fresh or with no previous full /dev_flash2 & 3 backup.

I not sure what file was that fixed the problem.

We need more machines, more tests.

I going start a thread and warn people right now!

Reply by Mathieulh

Source: @Mathieulh (via) TwitLonger (http://www.twitlonger.com/show/7cfgqq/)

The people having bluray movies playback issues after downgrading, this happens because you updated to a modified PUP (psjb one) which has its /dev_flash3/ tarball swapped (probably to a debug one, debug consoles do not sport bd movies playback) with other CRL/DRL revocation files.

Having read some posts online, it seems that majority of people who did downgrade, still have a working BD Playback for movies. Interesting. Could it be the downgrade files (modified 3.41 PUP) that is causing the problem?

*UPDATE to possible fix by Mathieulh (http://psx-scene.com/forums/619528-post426.html)*

Replacing /dev_flash3/ to a backup according to multiple accounts, fixed the problem.

However, the above method does no good for consoles that came pre-installed with 3.50 as there is no "dev_flash3" to backup from. You can also see what other people are using to downgrade, what consoles they're using and if they are affected over at PSX-Scene (Blu-ray player, does yours still work after downgrade) (http://psx-scene.com/forums/f118/blu-ray-player-does-yours-still-work-after-downgrade-72589/).

Source: PSX-Scene (http://psx-scene.com/forums/f6/warning-red-alert-downgrading-kills-blu-ray-movie-playback-72562/)

Image via comments

[Shrygue]

Whatever the case, one must take caution before going on ahead and flashing their PS3's NAND flash. No one wants a big, glossy and expensive brick that can't do anything.

Aside from this problem, if anyone knows, is it possible to downgrade back to v3.15?

[NoQuarter]

Yes, I believe you can goto 3.15.

[bandit]

Whatever the case, one must take caution before going on ahead and flashing their PS3's NAND flash. No one wants a big, glossy and expensive brick that can't do anything.

Aside from this problem, if anyone knows, is it possible to downgrade back to v3.15?
Yes, you can downgrade to 3.15. See my tutorial on PSDowngrade for the PS Jailbreak. Steps are exactly the same...just using a different dongle depending what you're using

http://reviews.dcemu.co.uk/review-original-ps-downgrade-psdowngrade-349073.html

[Shrygue]

Oh goody, perhaps I could try this out. Just hope my dongle works with it. (It's a PS3break 1.1 but I think I updated it to 1.3 at one point.)

[bandit]

Oh goody, perhaps I could try this out. Just hope my dongle works with it. (It's a PS3break 1.1 but I think I updated it to 1.3 at one point.)
There is no 1.3 for PS3Break. 1.1 is the version number of the dongle. The firmware for PS3Break has a different number (current is 1.7). Just like PS3Break 1.2 is the new blue dongle but has a firmware of 1.7.

PS3Break has just released downgrade for 1.1 and 1.2. Downgrade is a different file from the jailbreak.