I have a PS3 slim CECH-2001 model which was stuck in an endless update loop of due to a failed wireless connection.
I have tried everything I could find from Mr Google such as using a different HDD, clean format, using various firmware versions (3.50, 3.55, 3.41) on a USB dongle and it always resulted either 8002F1F9 or 8002F281 error. The console was supposedly OK before the failed update so I believe the Blu ray drive is OK.
I got it to restore a few times but it only got to about 55% and the error message popped up
I think the last option is to do a firmware downgrade on a Slim console using a patched jailbreak key. I know this is risky but there is no other option on this piece of junk.
Can anyone tell me if there is another way to fix the fault?