Interfacing TC35i Problem

[Sharagim]

Hi,
I am interfacing a TC35i.
I have a problem which is :
When there isn't SIM I can connect to serial port and send and receive AT command.
But when I insert SIM card it is going off after a few seconds. during that shot period of time I can send AT command and it show SIM ID too, There isn't any output to serial on shutdown.
I would appreciate if you can help me.

 

[davenn]

dunno how much searching on google you may have done so far ?

maybe this may help.... www.rfsolutions.co.uk/acatalog/tc35i_atc_v0301.pdf

Dave