Navigate to Setting>Security Options>General Settings. Go down to where it says content protection and enable it. Its gonna ask for a password, go ahead and input whatever you want. After you have set a password back out of settings and restart your phone. Now when you go back into the Security Options and there should be a memory cleaning option. This doesn't wipe any of your personal stuff so dont worry about that. I gained 6 megs when i checked my memory. Great little tool

Interesting. Did nothing for mine.

A little info about Memory Cleaner:

BlackBerry Search Results

Wirelessly posted (Opera/8.01 (J2ME/MIDP; Opera Mini/3.1.8295/1716; en; U; ssr))

Nice one

there some handset which no need to enable it. but there also some handset which need to enable it before we can use memory cleaner.

still wondering why :D

my 8320 and 8100 must enable it before i can use. But many of my friend no need to enable it . they are already enable.

Is this memory cleaner worth using? I don't normally password protect my phone so having to do this is a bit of a nuisance but if the memory cleaner is a 'must have' I'll password protect the phone. I've found that if I use the soft reset application I get back a bunch of mb. Is it a problem doing a soft reset daily? thanks