Now, as we all know it, firmware 1.5 has been revered for a long time. Much longer than 1.0. Now, what makes this firmware, so holy? For starters, DEVHOOK. With DEVHOOK, we could emulate up to the 2.71 NAND. That is just amazing, isn't it? You had the homebrew and kernel capabilities of a 1.5, and yet, also have the browser and RSS of 2.71. It could also be customized...Customized how you say? Well, with my favorite, safest, and the best homebrew program to use to customize a 1.5 PSP is X-FLASH. Here are some things that can be changed, safely:

• Bootsound
• Remove SCE logo
• Gameboot
• Font
• Background
• Menu Names
• Disable Network Update
• Change Firmware number (Even to 1337!)
• AND MORE!

• Official SONY eboots do NOT work (No more "Accidental UPDATING")
• The benefits of 1.5 and 2.71 on the PSP NAND
• This allows you to use DEVHOOK directly from your PSP NAND, thus allowing to free your memory stick of some much needed memory
• The ability to downgrade
• The ability to recover your PSP
• Recovery mode uses the 1.5 kernel, so even if the 2.71 kernel is damaged, your PSP can still be recovered! This is much better than 1.5 recovery mode!
• You can do limited customization of this firmware:
• Gameboot
• Backgrounds (01.BMP....12.BMP)
• Font