Skip Firmware Update With UMD Swap

- Emmanuelle pspmexico has come across a method to play games that require a firmware update without doing the update.
- It is confirmed as working and can be performed like this:

You need:
* A PSP with 1.0 or 1.50 firmware which you donÂ’t want to be updated.
* A game does not require system update to play. (Disc A)
* The game you want to play but requires a system update. (Disc B)

Method:
In the XMB interface, put Disc A into the PSP, then start the game. While in the white screen, swap Disc A with Disc B. Then the game will continue to load.