Template:TRMXXX Device Startup

Device Startup

When the device is connected, open Device Manager on the end device and verify that three USB ports and an RNDIS control device appear under the device list.

File:Device Manager.PNG

Step 1: Accessing the AT Port
1. Identify the AT Port for the modem; in this example, it’s COM6.
2. Open Putty on your computer to access the AT command interface.
3. In Putty add the following information as shown below:

File:Putty Information.PNG

Step 2: Check and Unlock the SIM Card
1. In the Putty window, send the following AT command to check SIM status:

AT+CPIN?

• If the response shows: +CPIN: SIM PIN, the SIM card is locked.