Unbrick PSP Slim to custom firmware

I successfully unbrick my PSP Slim to the latest custom firmware 3.90 M33 v2 using this guide. Now I need to wait for my 2x 4GB MSD from play.com.

To play iso/cso file, you need to make sure UMD mode set to disable by referring to Recovery Menu Guide.

Good source to download PSP related files at Quick Jump Download.