I have mine nokia 3650 for a week now (bought it from someone who could not get used to it… I know I can! but before I play to much with it I must understand a few basics about the memory before I can play around with applications and games…
Formating MMC only erases MMC contetn as the command name says.
*#7370# will erase all contents of drive C and copy the ROM drive Z to C
The booting phase takes about 30 seconds and afterwards everything looks like you turn you phone on for the first time.
Contents of the MMC will stay
RAM(~450 KByte i think) is seperate from storage space.
To get more free ram use AppMan or restart the device
(there should be no autostarted appz)
Try to install all appz to your MMC because they'll still use a bit of drive
C's space in your system directory and if you install a lot of them
you'll get problems with your phone... have phun