Thread: PSP doesn't boot

Hi, as you can see, I'm quite new here so I'm not sure if this is the right place to post this but here it goes..

First of all, I bought a 8GB Memory Stick PRO Duo (I tested it and confirmed fake MS). When I tried it on my PSP (Slim), my PSP has black screen, green light is on (no blinking). Nothing happens. The green light is on unless I turn the PSP off myself.

I've found a solution to this though. I used my 4GB Memory Stick PRO Duo (which I think is original) to boot up my PSP and it worked. When my PSP is on the XMB, I removed the 4GB MS and inserted the 8GB MS. Nothing happened and I was back to playing, except when I found out "James Cameron Avatar the Game" only works on 5.50 GEN-D3.

I updated my PSP to GEN-D3 and played for a few days. Been using the method I mentioned earlier to play the 8GB MS. Until last night, after I finished playing, I went back to the XMB menu and removed the 8GB MS and inserted 4GB MS before I turn off the PSP (which I always do).

When I inserted the 4GB MS, the PSP didn't read it at first, so I removed it (this may be the reason to what's going to happen next.). When I reinserted the MS, the PSP read it but.. instead of having 100+ MB, it became 8MB. I didn't had time to check it out 'cause I was going to sleep.

So, on the next day, I don't have any methods left to boot up my PSP (even go to Recovery Mode). Until I found out that removing my battery and using my AC Adaptor as a Power Source could boot up my PSP. I first went to the Recovery Mode and restored the Flash0 settings and stuff to default to make sure my PSP wasn't semi-bricked.

After doing it, I inserted the battery again without AC Adaptor and the same thing happened. So, I just used the AC Adaptor method again to boot up the PSP then after it is on the XMB menu, I inserted the battery before removing the Adaptor so I could play again.

My questions are:

1. What happened to my 4GB MS?
2. How can I get my PSP to boot up normally again?
3. Are there fixes to any problems that I mentioned in my story?

P.S. Sorry if my post is too long. I just made sure that my story is detailed enough for all of you to understand it well.

Have you try to format both MS? Maybe also the battery is in a Pandara State