(E.4) Go to Recovery mode (Power off your PSP by holding the power button for 10 seconds.
Turn on your PSP while holding the right shoulder button to go into recovery mode).
If a savedata exists from 3.40 , the emulator will freeze.
A few notes from the M33 team about vshmenu and UMD video ISOs: * vshmenu cannot be loaded when the browser is active.
It will interfere with existing * XMB plugins that use HOME, so it can be disabled in recovery. Instructions are same as in previous release, except 3.30 * firmware did not have libpspvmc.prx, so just ignore that file.