then update it
well, first of all, the 6.20 update hasn't been cracked yet, you yah will have to un-install that update. And, if you have a PSP-3000, you can't hack it because of the hardware and the integrated firmware in the psp. So it all depends.
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
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).
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