Sony offers three different ways to update a PSP's firmware. These three ways include updating directly via system update, update from a UMD, and update via a PC (Windows or Mac).
then update it
You don't 'update the PSN', you update the PSP's firmware from the Settings menu on the XMB.
To update a chipped PSP, a person must use the system update function manually. From there, the chipped PSP must be upgraded to version 6.60.
Because it updates the PSP not the network.
to update your psp, you could just download it from the browser or use the network update on your psp. check out this fun addicting game online kddoan.mybrute.com
You can download the update and copy it to the memory card, then run the update on the PSP itself.
http://wiki.answers.com/Q/You_have_update_psp_5.00_now_you_want_update_your_psp_5.00m33"
update it
update to 3.5 on psn
The latest PSP update was 6.37
you have to update your psp until you reach 5.00
It will tell you when you need to oupdate, or you can update your PSP reguarly because that includes updates of everything