WARNING: Downgrading PlayStation 3 Kills BD Playback

December 8th, 2010, 16:13 Posted By: bandit

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

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

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*

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).

Source: PSX-Scene

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