Things You'll Need
Instructions
Reinsert and Inspect the UMD
Open the Sony PSP UMD drive.
Inspect the PSP UMD drive and UMD disc for any damage, moisture and obstructions. Do not use a cracked, broken, damp or dirty UMD on your PSP console. A wet or damp UMD must dry completely before it can be safely used.
Clean the UMD disc and casing using a soft, non-abrasive lint-free cloth or a cloth specifically made for disc cleaning.
Slide the UMD into the UMD drive with the label facing the back of the PSP console and the rounded edge pointing downward.
Close the UMD drive and power on the PSP to see if it works.
Restore PSP Default Settings
Power on your PSP and scroll to "Settings" on the home menu.
Choose "System Settings."
Select the "Restore Default Settings" option.
Choose "Yes" and confirm you want to restore the system to the default settings. This may take several minutes.