Sometimes we need to format the memory stick (MS) from the PC. This is a valid option, but has a downside: all PSP’s data is erased, even the GAME and ISO folders. In order to fix this just insert the MS into the PSP and follow these steps:
- Go to System Settings
- Select Format Memory Stick
- Accept and confirm
Then you will have your memory stick formatted properly and ready to use. If you still have doubts you can check the video out, where the procedure is shown.
This procedure delete all data in your memory stick. Although I followed these steps and I share them, keep in mind your are the only responsible for your data.