Hi. The speakers on one of my PSP's doesn't work. But if I use the headphones they work. The speakers has worked without any problem until now. The PSP is not physically damaged or anything. So I figured I would reflash my PSP. So I flashed it to 3.71 M33-2 and then 3.71 M33-3 using Universal Unbricker v3. It still didn't work. So I tried to reformat flash1. But then the PSP didn't boot up. So I decided to re-flash it again using Universal Unbricker v3.
The unbricker formats flash0, and then stops at "Format flash1... " and then the PSP shuts down. So I can't reflash my flash1.
I would be really happy if someone has a solution, so I don't lose one of my PSP's :/
EDIT: I do have a NAND-dump, but I only want to use it in case of emergency.