Fastrack Supreme won't answer...

Hello everyone!

I was trying to attach the device to the GSM Network via AT commands. But I kept getting 99 after sending AT+CSQ.

Then I typed the following command:


After that… it won’t respond not even a “OK”. Is it dead? I tried to use DwlWin and it won’t respond either.

What can be done?
Thank you for your help!

You haven’t registration in the GSM network. Read at-commands user guide.