Help emulating 2.7/2.6 on a 1.5

[themuffinking340]

This morning I was running 2.6
This afternoon I was running 2.7
Right now I'm running 1.5

But I want to be able to use my games, which are higher versions. So Is there a way I can emulate 2.6/2.7 and how would I go about doing this?

[splodger15]

Devhook

[Meekasko]

Yea, you need to use devhook. Look for the ultimate installer v1.1.1. You just connect your PSP to your computer and run the installer and you're set.

Or you can do it manually if you download the files.