Внимание! Пока не ставьте новую прошивку 2.40! PS3 2.40 Update Problems And Solutions 
While it seems like every time the PlayStation 3 undergoes a firmware upgrade is plagued by people trying to blame broken systems on the update, last night's 2.40 update seems to have caused genuine issues with many posters over at the official PlayStation forums. Owners of PS3s in all shapes and sizes have been reporting that their systems were loading to the initial PlayStation wave screen and simply hanging there after applying 2.40. No icons, no controller functions, no nothing, just the wave across the middle of the screen.
There doesn't seem to be any real pattern as to which systems are affected. 60GB, 40GB, 20GB, and 80GB systems alike have all been afflicted with the issue. We've contacted Sony for word on the issue, but in the meantime several of the more tech savvy forum posters have determined how to fix the issue, if you're willing to yank out your console's hard disk drive.
Users found that removing and reformatting their PS3 hard drive and then reinserting it into the console would get the system to boot completely, after which it asks to reformat the disk again and everything runs normally. Of course they lose all of their saved games and have to redo all of their downloads, but I suppose that is better than sending in the system for a $150.00 repair.
One can only assume that the update was the catalyst that caused certain data on affected hard disks to become corrupt, rendering the system unbootable. It would certainly explain why only certain systems are being affected, and why Sony couldn't have caught the problem in the first place.
We'll keep you updated on the issue as we learn more. In the meantime, feel free to hit the link below to read through 30 plus pages of quality PS3 forum drama.
Источник: kotaku.com Sony Pulls PS3 2.40 Firmware After Reported Problems 
The release of PlayStation 3 firmware 2.40 last night seems to have caused a wide number of issues for those who updated to the new release, as we reported earlier. It now appears that Sony has since pulled the newest update, reverting back to firmware 2.36 as the most recent available version. We were just prompted to download version 2.36 after having skipped the most recent pair of PS3 software updates.
This may be a temporary move to prevent more widespread reliability issues. We are awaiting confirmation on the move from Sony and will update when we hear back.
Источник: kotaku.com Обсуждение проблемы на форуме Playstation.