Nec 343i delete locked files

[Jimbolino]

Hi,

I've got a Nec 343i, and i was wondering if it was possible to delete some of the "locked" files that are on the phone.

There are some demo pictures and ringtones that i'd like to get rid of ;)

I've noticed that it is possible to connect to the phone using hyperterminal.
It identifies as a normal modem.

Thanks.