now
6.20
Because it updates the PSP not the network.
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.
Yes , its system update not memory card update
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).
5-12-09/ just kidding
We do not know. It will be released when it's ready to be released.
then update it
In the PSP's XMD scroll across to setting. After that, go to the very top and you should see System Updates. Click it and it will go through the network connection pages and then start checking for new updates. When it asks if you want to download and install it click yes. Be warned it takes a lot of power to download and install the updates. have fun :)
You don't 'update the PSN', you update the PSP's firmware from the Settings menu on the XMB.
If you connect your PSP to your PC with a USB cable, you can manually delete the upgrade installer from your memory card. This is not to be confused with downgrading the PSP firmware itself. Once you run an upgrade, the PSP's firmware is flashed and upgraded, deleting the update file won't do anything about that.
To upgrade to the latest version of the PSP system software (currently version 6.10) download the upgrade to your computer and pass it to the PSP, using Settings, via a USB cable or USB memory stick. See links below for download links - note the localised links at the bottom of the page.