I didn't have that folder BCES01175_NDI_UNCHARTED3_BT_5 in my PS3 console but I tried to copy from USB_dev entire folder BCES01175_NDI_UNCHARTED3_BT_5 to my console (without Param.sfo), I close the Multiman, I start the Multiman then the game UC3, select campaign and continue and still freezing to that chapter 9.
Sorry for my bad english but I really need some help here.
You have a folder named BCES01175_NDI_UNCHARTED3_BT_P, with "P" at the end, that's your profile, and another BCES01175_NDI_UNCHARTED3_BT_5 (or BCES01175_NDI_UNCHARTED3_BT_0 in my case), that's your save. Follow the path corectly dev_hdd0\home\00001\savedata\BCES01175_NDI_UNCHART ED3_BT_5 and you will find it, but maybe with a different number at the end (mine is 0 not 5). And also try to actually make a save of your game, not just letting it autosave itself. Remember, 000001 might also be different.
AnnaDea, use Putting The PS3 Game Saves Back In Place from this manual: makeuseof.com/tag/how-to-back-up-and-import-ps3-game-saves/
Putting The PS3 Game Saves Back In Place
If you want to copy a savegame to your PlayStation 3, you’ll need to do the following:
1. Go to Game -> Saved Data Utility.
2. Way at the top you’ll see your storage drives. Click on the one you need.
3. Just like before, select the desired savegame and press triangle. Then select Copy in the sidebar and choose to copy to your PlayStation 3′s hard drive.
4. Wait for it to finish copying, and you’re done!