Hello. Read below for other problem:

Hello to everybody.
I'v bought a dual sim device like this one
http://www.eshop.netsons.org/resources/Dual-Sim.html

My problem is that the automatic switch from one sim to another one by time
is unabled because a messege like "do you allow this action by sim?" appear
on the display and you always have to say "yes" to do allow automatic
switch.

The seller does not know how to solve this problem and said me that
the mobile needed to update the software. Nokia center for service said that
they don't suggest to update the mobile software on the Nokia 6300 because
some application on email function will be definitively corrupted.
By internet, update, using Nokia Pc suite, is impossible for me: I don't
know why.

Some of you can help me in bypassing the function "do you allow this action
by sim?"
Thank you very much in advance.