To get your games and DLC to work again, wait until you can sign into PSN, then redownload anything that's in your download list on any/all of your accounts that you have ever downloaded anything onto your console, which will reactivate all of your downloads that you have installed on your hard drive which you downloaded on that account.
As requested, I have now linked your reply in the first post spark32 so those interested will see it. I have also added the second update of Sony confirming the "non-Slim" hunch as well.
I am getting the same error code (60Gb Fat with 3.15 Firmware).
Unable to access PSN, lost trophy information for Assassins Creed 2 and can no longer play the game, Marvel vs Capcom 2 has reset to trial mode and the TV icon on the XMB has gone too. Hopefully Sony can find a solution for this soon.
I was at a friends house earlier today and he has a 60gb phat ps3 which got the error code and lost trophies so i was worried, luckily so far I'm one of the unaffected phat users (Original 60gb) on 3.15. I leave my ps3 always signed into the PSN and I'm still online. So if I haven't had the problem yet I should be fine?
I went in the kitchen to grab a burger and a drink. When I came back into the room my PS3 was frozen on the community play screen (nhl 10).. nothing new.. so I restart the machine and I get the 8001050F BS... They need to fix this... My twin bro on his new slim is cruising right along.. even called to laugh at me about it.
As long as its the clock prob and its fixed quick cool, I have had my phatty for 2 yrs now and this is prob #1.
Okay i assumed that it was only the PSN network that managed to send a bug to our ps3's and cause them to malfuntion but the same bug is happening to people who don't even have their ps3 online. To see if this information is correct i called my friend who doesn't have internet but owns a ps3 (to think in this day and age there are people who can afford a ps3 but not the internet) and asked him to see if he could play any of his games and behold the same error everyone else has.
If someone is bored and wants to give it a try - gut your PS3, disconnect the battery going to the syscon. The RTC is done by the syscon, removing the battery should reset the date.
If it works or not, is another question, but keep it unplugged (the CR2032) for a few minutes, and stick it back in!
Someone on IRC named zarge confirmed this works, however, you have to open the PS3 so it may be safer to wait for Sony's "proper" fix... but he claims he did it and is now playing MW2 fine with his Fat PS3 console.