Required items 
A PSP® (PlayStation®Portable) system with battery pack and AC adaptor
Memory Stick Duo™ media with at least 20 MB of free space
Internet access
One of the following:
A commercially available USB A<-> Mini-B (5-pin) cable
A commercially available Memory Stick USB Reader/Writer*
A PC equipped with a Memory Stick slot* *If the slot on the device can handle only standard-size Memory Stick™ media, a Memory Stick Duo Adaptor (model number MSAC-M2; a Sony product sold separately) is required.
Download procedure Required items 1.Prepare to save the update data on Memory Stick Duo™ media using one of the following methods:
Connect the PSP® system to the PC using a commercially available USB cable
Connect a commercially available Memory Stick USB Reader/Writer to the PC
Use the Memory Stick slot on the PC
2. Create a folder for the update data on the Memory Stick Duo™ media.
Using your PC, create a folder named "PSP" on the Memory Stick Duo™ media. Within the "PSP" folder, create a folder named "GAME". Within the "GAME" folder, create a folder named "UPDATE". (Folder names must be in all uppercase letters)
Required items 3.Download the update data and save it in the "UPDATE" folder created in step 2.
Notice You must save the downloaded data as noted in these instructions. If you do not save in the correct location and with the filename shown below, the system will not recognize the update data.
Location: Save in the "UPDATE" folder
Filename: Save as filename "EBOOT.PBP"
Update procedure Notices Before starting the update, you must do the following:
Fully charge the battery.
Connect the AC adaptor to the PSP® system and plug it into an electrical outlet. During the update:
Do not remove the AC adaptor. Do not turn off the system or remove the Memory Stick Duo™ media. If an update is canceled before completion, the system software may become damaged, and the system may require servicing to repair or exchange.
1. Insert the Memory Stick Duo™ media containing the update data in the PSP® system.
2. Start the update data.
Select
under
from the home menu, and then select
. Press the
button to start the update.
3. Confirm that the update was successful.
After the update has been completed, select "System Settings" under
from the home menu, and then select "System Information". If the System Software field displays the version number of the update, the update was successful.
Hint
After the update has been successfully completed, you can delete the update data from the Memory Stick Duo™ media.
If the following screen is displayed when you attempt to start the update data, the system software in your system is already updated and you do not need to perform an update.
To download the 2.81 firmware for PSP click here
Linear Mode
