In order to put custom firmware on psp, we need to have two things. First, we need magic memory stick and second we need jigkick battery. I'll explain below how to create these two items.

Creating the Magic Memory Stick:

1. Insert the Memory Stick in the PSP (must be PRO Duo).

2. Format the Memory Stick via the Menu of your PSP within Settings.

3. Connect the PSP to your PC through the USB Cable and enable the USB Mode in the PSP Settings.

4. Create the /PSP/GAME and PSP/GAME150 folders on the root of the Memory Stick

5. Download Dark_Alex's Despertar del Cementerio v8 (just google if you don't have it). Unrar the "DC8.zip" file with the help of your favourite compatible uncompressor (i.e. WinRAR or WinZip) into your local hard drive. Locate the folder called DC8 and copy it (along with its contents) to the folder /PSP/GAME you just created above.

6. Download the 5.00 Official SONY Update File. Unzip the 5.00 update to a temporary folder. Rename the unzipped 5.00 EBOOT.PBP file to 500.PBP. Then copy it into the root of your Memory Stick.

7. Once finished copying all the files, disable the USB Mode safely.

8. Go to the GAME Menu of your PSP, select the Memory Stick and press X, then select "Despertar del Cementerio v8" and press X. It will ask you to press the X button to begin the installation.

9. Only if Dark_Alex's Timemachine is already installed in the memory stick you're using, the program will prompt you during the memory stick creation for the button(s) you want to boot DC8.

10. NOTE: Beginning at version 5 of the DC, it uses same iplloader than timemachine which usually doesn't require to mspformat the memory stick. However, in some psp 5.00m33 memory sticks it might still be necessary. If this is the case you will see an error during the installation process (iploader). To fix that just run mspformat and then re-start the process from the Step 10 again

11. Once finished, you'll get back to the XMB. If you had TimeMachine already installed skip to the next step. Otherwise connect the PSP to your PC again through the USB Cable and enable the USB Mode in the PSP Settings. Click THIS LINK, and save the config.txt file into the /TM folder of your memory stick.

13. You have successfully created your Magic Memory Stick.

Creating the Jigkick Battery:

1. Insert the Memory Stick in the PSP.

2. Connect the PSP to your PC through the USB Cable and enable the USB Mode in the PSP Settings.

3. Download the latest release of Cory's Open Source Pandora Battery Tool. Unzip the "ospbt_0.xx.zip" file into your local hard drive. Locate the folder called OSBT_0XX and copy it (along with its contents) to the folder /PSP/GAME.

4. Once finished copying all the files, disable the USB Mode safely.

5. Go to the GAME Menu of your PSP, select the Memory Stick and press X, then select "OSPBT" and press X. It will show a Warning message, press the X button to continue.

7. I suggest you select "Backup battery eeprom to ms0:/eeprom.bin" and press the X button. This way you will be able to to recover it at a later stage to its exact original condition, whenever you want to convert tha pandorised battery back to normal.

8. Then select "Convert to Service Mode (aka: Pandora's battery)" and press X. Now your battery has been Pandorised.(*) You can select "Quit now" and press X. Shut the PSP off. You can use your set now to unbrick any PSP and/or install the 5.00 M33-3 CFW.

* If you receive an error message your Battery is not compatible.

Using the set to unbrick / install Custom FirmWare:

1. Grab any bricked or working PSP (Classic or Slim&Lite) running any firmware (Official or Custom).

2. Remove the regular battery, ac-adapter and memory stick if applicable.

3. Insert the completely charged Magic Memory Stick into the PSP

4. Insert the JigKick Battery into the PSP.

5. The PSP will boot up automatically showing a Menu on screen.

6. Follow the on screen information and options:

7. Install 5.00 M33 (installs 5.00m33-3 CFW)

8. Install 5.00 OFW (installs 5.00 OFW with no homebrew capability!)

9. NAND operations (this enables you to Dump, restore or fix some NAND settings)

10.Hardware Info (find out what mainboard is in the PSP what model it is and some more information)

11.Test M33 (Use this option to boot 5.00m33 from your memorystick. In this mode you can execute homebrew and convert your pandora battery back to normal)

12.Shutdown (Switches the PSP off)

13.Reboot Device (Reboots your PSP to the XMB as if your battery is a normal one)

14.Press 'Install 5.00 M33' to install 5.00 M33-3. The memory stick LED should begin flashing. Wait around 5-10 minutes, when the LED stops flashing the process is completed and you'll be asked to press X to reboot the PSP or O to shut it down to complete the installation - I suggest that you hit X. the PSP will boot to XMB and you can convert your Pandora battery back to normal.

15.You may be presented with a BSOD, but just press X or O to restore settings.

16.Done. You're now running 5.00 M33-3.