This is a tutorial on how to install the 5.70 PSP Go firmware dumper onto the PSP Go. This is only for the PSP Go and will only work on CFW or OFW 5.70
Download the file down below and either open or extract the files and you should see a release folder, inside the release folder you should see the dumper folder and another zip archive. Take the Dumper folder and place it in the ef0:/PSP/GAME folder and then exit USB mode. Then just run it on the PSP Go and it will have you choose a dump process and then it will dump to the root of the MS.