Insert SIM Card???

[Milisco]

I have a problem with BB 9800 which is unlocked. When I put in him my SIM Card, I'm getting message "Insert sim card" and the red "SOS" in top right corner of handset. That SIM Card works perfectly at my old BB 8520, where I have BIS and BES. SIM works at my old Nokia too. If I put some other SIM card from the same network or other network, both are working normaly at BB 9800.
Any help will be very helpfull. Thanks in advance!

[rob7100g]

Me too. I read here on CrackBerry the contacts in the 9800 SIM card slot can bend out of shape.

Take the SIM and Micros SD card out. Press gently on the SIM card slot with the eraser on the end of a pencil.

[Milisco]

I can't believe, it works. I done that, what you write and I got a signal. Thanks a lot :-)