I'm trying to download patapon 2, but my PSP says I need an update, but it also says I have the latest update (5.55.). I can't get into the Playstation store so I can utilize the patapon 2 code.

Try this site: http://www.neoseeker.com/Games/cheats/PSP/patapon.html
Not really cheat codes available for this game, but theres lots of trick and tips

Yes if you go here, this is a free converter. Please comment if you need more info.

There are two ways to do this 1.For the latest version without having to use the internet,you need to buy one of the latest games then when you try to start it if your version is not high enough it will say ''An update is needed.Update now?'' say yes and follow it's given instructions.
2.You need the internet for this one.
Go to settings from the PSP homescreen,go to System Update you are given two choices Update via Internet and Update via Media Storage,choose Update via Internet it asks you a few questions on whether you want to update say yes to them all,then it should start downloading,when it has finished downloading (It might just ask you whether you want to install the update when it finishes downloading) go back to System Update and this time choose Update via Media Storage,it gives you some instructions and asks you to accept the license agreement then it will start installing,after it is installed go to games and Memory Stick and delete the update.
Good luck.

The easiest way is to connect it to a wifi network and use the "network update" option. This will download and install it for you.

Outside of that you can download the latest firmware, copy it to the memory stick and execute on the PSP.

The latest firmware also comes on game UMDs (assuming you have a UMD PSP) so you can update to latest that way if you're willing to buy a new PSP game.

Sony's site has a really great walk through to help you out.

This article courtesy of Wikihow explains how to update your PSP to the latest firmware:

http://www.wikihow.com/Upgrade-Your-PSP-Firmware

It will require you to go to the sony psp website and you can get the latest firmware there.

Download it and then read the article which explains how to hook up the PSP to the computer and how to update the PSP properly.

1st of all u need to have custom fw (firmware) like 5.00 M33-6 (i have this) u can buy a pandora's battery & downgrade it to that (depending on you're fw) or if you're fw is old enough u can simply upgrade it with an EBOOT.PBP (that contains the cutoms fw) from http://dl.qj.net/CFW-5.00-M33-6-PSP/pg/12/fid/25689/catid/114 or google custom firmware download for psp or m33-6 download. to put the cfw (custom firmware) on you're psp (MUST have a USB cord) plug it into the pc with you're USB cord then go to the following folders PSP>GAME>UPDATE & put the EBOOT.PBP file there (if 1 of the folders isn't there just make it)
then exit the windows unplug the psp go to mem card under saved games (in psp) & u should see a box in there, THAT is the update press x to go to it & follow the instructions. when u have the cfw installed and ready, go to a website that nisc posted (i use mininova.com & isohunt.com, although isohunt has isn't as reliable) and search for the game u want like patapon 2 then it should have some files there that u can download (it should be at least 50 mib's) choose 1, (u will need Bittorrent or azures to download it since it is a completely diff type of file) , when it is done downloading it should be a .rar file or a .iso or .cso file if it is a .rar file open it with a rar opener (i use Winrar) and inside there should be a .iso or a .cso file extract that to anywhere then plug in you're psp with the usb & inside it there should be some new folders if not just make them PSP>ISOput the iso or cso in there (the ISO folder) then unplug and go to mem card under saved games (on the psp) and there it should be! i hope this helped some. ~davidthebuck

you could try updating the firmware to the latest through the sony website? or download direct through the psp that way the game wont need to update, hope that helps.

U CAN DOWNLOUD IN PLAYSTAYCION NETWORK BUT U HAVE TU BUY FUND FOR DOWNLOUD

try utorrent,download the file first.here is the link www.filehippo.com/download_utorrent/3729/

Need to upgrade the firmware...sony needs firmware updates to play new games, add features...and attempt to slow piracy. Ro up grade your system go to settings and network update...if you do not have a wireless network to connect to you can download the updates and put on a memory stick from sony.com