If you’re one of the people dissatisfied with 5.50 GEN-A and went back to 5.00 M33 then you’ll be glad to see that 5.50 GEN-B has been released, fixed some of your bug worries and added some more features.

Important: DO NOT attempt to install this on PSP-3000 / PSP-2000 TA088v3. YOU WILL BRICK YOUR PSP IF YOU DO.

Requirements:

• PSP Phat or PSP Slim with 5.50 GEN-A. If you don’t have custom firmware yet, READ: Convert your PSP to custom firmware.
• PSP battery that’s at least 78% full
• Download: 5.50 GEN-B
• Disable ALL plugins.
• Back up your save files (so that if they get corrupted, you still have backups)

How to install 5.50 GEN-B CFW on your PSP:

Before you get to install 5.50 GEN-B, you need to install 5.50 GEN-A so read this guide on how to install 5.50 GEN-A first then come back here.

• Extract the 5.50 GEN-B files to your computer.
• Copy the PSP folder to your PSP’s memory stick. (Yes, just drag the whole folder there)
• Disconnect the PSP from USB
• Run 5.50 UPDATE from under Game on your PSP’s XMB
• After all process is complete, press X. Your PSP will reboot.
• Congratulations, you’ve just installed 5.50 GEN-B.

Important: 5.50 GEN-B2 Patch!

After installing 5.50 GEN-B, you can install the bugfix 5.50 GEN-B2. It fixes a bug that prevented the launch of an entire category whose homebrew kit despertar del cementerio.

To install just download 5.50 GEN-B2 and use the same steps above.
Important Notes:

What do I get with Custom firmware 5.50GEN-B?

• All functions of the official 5.50 GEN-A firmware
• Bug fix: the VSH menu can now be disabled
• Pressing Select can start the recovery, bring up the VSH recovery menu, or do nothing at all (for those who wish to use Remote Play between their PSP and PS3)
• Update via Network (taken from M33)
• Pandora (converting the battery to/from the Pandora-state) and Shutdown Device options added to the VSH menu
• Flash1 format option adds a check that prevents a flash1 format if enabled
• Access [remains open] to the PlayStation Store and Remote Play continues working

Hat off to PSP GEN for 5.50 GEN-B.

Post a comment if you need help or clarifications.