PSP Memory stick not showing the games?

My PSP-1001 can't read any games on the memory stick.?

• Today I upgraded my PSP-1001 to the version 6.38. After that it said there were no games anymore but I hooked it up to the computer and the games were still there in the ISO folder. I moved it several times back and forth from ISO to PSP/Games but it doesn't seem to work. I've tried everything except for the Pandora battery thing which is not available in our country. I've also searched and learned that my PSP memory stick is fake and I don't have enough money to buy another one. Please help.

• Answer:

  Are you playing hacked games? If so, you'll need to update the software(s) you're using to play ISOs on your PSP. Because if you update your PSP online, it'll overwrite whatever files you used to have on your PSP.