network problem (Qtek s100)

[Jonas.c]

Hi,
I bought a Qtek S100 from a friend a few days ago.
The problem is I can't recieve a network.

When i start the phone, I have to enter my pin code and I can see my contacts and everything works as normal. But when the phone searches for a network, after 5 seconds an exclamation mark appears next to the network-recieve-icon.
It says "no service".

So now I can't make a call of send a text message.

I tried soft and hard reset, trying all the settings, another sim card, but that all doesn't help.

What can I do about this?
Is my phone simlocked?

Please help

Jonas.

[shoonari]

try to change a radio rom

[Jonas.c]

how do you do that?
never heard of that :P

[zerimar]

Are you using the same provider as your friend? Does your sim work ok with other phones? I guess that it's sim-locked. Try borrowing a sim from another friend whose provider is the same from whom you bought the unit.