So I haven't been really up to par with anything homebrew related for a little over a year now, and my friend handed me his 3.71 and wanted me to downgrade it. I looked and the only way I can download a firmware that high is through usage of the Pandora's battery.
I Google searched and looked at the process of making the battery, and saw that you needed to open up the PSP battery and remove a certain pin from the circuit board. Then I looked at several guides here on making the Pandora battery and I saw no reference or step requiring internal modification (soldering) to the battery.
So is opening up the battery and modifying it really necessary, or can I just use a regular battery + the conversion program and turn it into a Pandora battery from there?