Timothy Woo

@JGLJGL used [these AT commands](https://github.com/botletics/SIM7000-LTE-Shield/issues/165#issue-568893959) which worked for him.

You can use the "sendCheckReply" command to send AT commands in your sketch for quick testing.

Only thing I can think of would be the polarity of the battery, but you said it's correct. Could you please double-check if the red wire is on the left...

Really? What is it returning?

Oh, that looks like a power issue. Please check if you have a 3.7V LiPo battery of proper polarity (if you're using the Botletics board the red wire of the...

If you want you could try [this pull request](https://github.com/botletics/SIM7000-LTE-Shield/pull/131) which supposedly works with MQTTS.

Looks like you swapped TX and RX there. Pin D10 is the shield's TX which should be the RPi's RX, and D11 is the shield's RX which should be the...

Unfortunately I'm not really a RPi user lol. Perhaps someone else can answer your RPi questions.

Don't connect the Arduino to it when you try to update firmware. Also make sure you have a LiPo battery with proper polarity (red wire should be on the left...

Could you please provide exactly what each pin on the SIM7000 board is connected to? It sounds like you somehow have a power issue. You should only plug in the...