FONA 808 cannot connect to network.

Projects Networking, Protocols, and Devices
1

I have a Fona 808 that I am connecting to an ATMEGA2560 R3. I have wired it up per the example here (photo of my wiring attached): Wiring to Arduino | Adafruit FONA 808 Cellular + GPS Breakout | Adafruit Learning System

I have a GSM 2G SIM card from Ting (GSM SIM Card from Ting & Adafruit - Data/Voice/Text : ID 2505 : $9.00 : Adafruit Industries, Unique & fun DIY electronics and kits) loaded, and Ting shows everything as active and ready.

I loaded up the FONAtest example, and changed the TX pin to 10 per the instructions. Everything compiles and uploads fine, but when I read RSSI I always get the following:

 ---> AT+CSQ
 <--- +CSQ: 0,0
RSSI = 0: -115 dBm

This obviously leads to the fona being unable to connect to the network. I have triple checked the wiring, spent hours googling, but I can't seem to find a solution. Any help would be greatly appreciated!

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2

This obviously leads to the fona being unable to connect to the network. I have triple checked the wiring, spent hours googling, but I can't seem to find a solution. Any help would be greatly appreciated!

Did you check that SIM card in a cellular phone? Do you have a good signal there? With a phone you should have a good signal otherwise the lousy antenna you attached won't receive anything. If the signal on the phone is rather weak, buy a good GSM antenna for the FONA.