using pandora battery with magic memory stick?

Put the psp with the screen face down on the clean cloth. remove the battery compartment in the back. take out the battery and put it aside.Insert the magic memory stick into the memory slot of the psp.Insert the pandora battery into the battery compartment. Put the cover back on the battery compartment and turn over the psp. Turn on the psp.wait for the black screen with options to appear on the psp. Press the x button to select the firmware option and start the installation process. Follow the onscreen directions to continue the installation process.Press the x button when the installation process is completed. The psp will now shut down.Turn the psp over and open the battery compartment. take out the pandora battery and put it aside. take out the magic memory stick from the memory slot. put the Sony psp battery back into the battery compartment. put the cover back on the battery compartment