NEC 313 Settings

[Schlips]

Hello!

After reading the instructions, it worked with my phone (V15) to get the locks away.

Now I figured out:

1st: I may use it for makting in- and outgoing calls but:

- if I put a U-SIM in, I may select 3 G networks (but non of MY U-SIMs is allowing me to connect to one of the here available networks)....
- if I put a non U-SIM in, the maximum I get is a black square in the upper left edge on the screen with 2 or 2,5 in it but NO 3G connection. With a 7600 or an A835 there is no problem to get with these SIMs in a 3G network...

2nd: I am not able to use USSD codes! Calling in possible.

3rd: As I read in the manual, MMS and WAP is only possible in a 3G network, not in 2,5 (GPRS).

Are there any solutions
- to use a "regular" SIM in the NEC 313
- to use WAP / MMS w/o 3G
- to use USSD codes

What about the SW? Does it work with an upgrade? How to get it? How to put it in the phone?

Thanks for an answer!