Here we will explain how to use your Pandora battery (also known as Pandora’s battery) in order to unlock / unbrick your PSP and install custom firmware. This only applies to the PSP 1000 (Fat) and PSP 2000 (Slim) models. Remember, some PSP 2000 models will not work this way, please see the “Is My PSP Hackable?” post for further info.
At this point you should already have a Pandora battery and you should have already made a magic memory stick. Remember, there is usually a difference between buying a supposed “magic” memory stick and actually having one that is ready to go. Very few places sell magic memory sticks that have already been made “magic” so odds are you still need to convert yours.
Here are the steps:
1. Insert the magic memory stick into your PSP
2. Insert the Pandora battery into your PSP (Note with the batteries made for Fat and Slim it may not fit perfectly, this is fine, just push it in there).
3. Despertar Cementerio should automatically load, but if for some reason it does not shutdown your PSP and then try turning it on while holding down the L trigger
4. You should now see options on a menu
4. Select to install the M33 custom firmware, or if you want you can select to test it first (NOTE: We suggest you upgrade to the newer better custom firmware which we will mention shortly). If you change your mind about doing this, select shutdown.
5. If you picked the install firmware option, you should see a progress bar. Once the progress bar hits 100%, your PSP should automatically shutdown.
6. Once your PSP has shut down, you can remove the Pandora battery and magic memory stick, and replace them with your normal battery and memory stick.
7. Now you can upgrade to the latest custom firmware, which is called 5.50 GEN-D3. I explain how to do this in this post: How to Upgrade to the Latest PSP Custom Firmware
NOTE: If your PSP shuts down during the installation and/or the battery falls out, your PSP will be bricked / locked. All you have to do to unbrick / unlock it is take the battery out and put it back in again.