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benjamindannegard/ Fix-max-carrier-h7-getting-started #248

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19 changes: 3 additions & 16 deletions ...dware/04.pro/carriers/portenta-max-carrier/tutorials/getting-started/content.md
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Expand Up @@ -146,24 +146,11 @@ The Portenta Max Carrier carries a cellular modem SARA-R412M-02B to carry out ta

***Please DO NOT USE the cellular modem without the external antenna attached to the SMA connector. It might damage the Portenta Max Carrier if used without.***

To begin using the modem, it will require some packages to be installed beforehand. Given the network technology, Cat-M1 and NB-IoT, it will require the use of `GSMClient` library. If the library is not installed or needs to be updated, please make sure to have the `Arduino Mbed OS Portenta Core` up to date from the board manager.
To begin using the modem, it will require some packages to be installed beforehand. Given the network technology, Cat-M1 and NB-IoT, it will require the use of the `MKRNB` library. Please also make sure to have the `Arduino Mbed OS Portenta Core` up to date from the board manager.

We will use the `arduino_secrets.h` header file for PIN and APN configuration of the SIM card that will be inserted into microSIM slot on-board Portenta Max Carrier. Following code pieces are to be used to initialize the GSM and set the general network configuration.
We will use the `arduino_secrets.h` header file for PIN and APN configuration of the SIM card that will be inserted into microSIM slot on-board Portenta Max Carrier.

```cpp
// Initializes GSM
GSM.begin(pin, apn, username, pass, CATNB);

// Establishes connection to desired server
client.connect(server, port);
```

Inside the `GSM.begin(pin, apn, username, pass, CATNB)` function, where CATNB is the fifth argument of the function, must be defined to which network technology will be used.

- To use the NB-IoT network technology, please use `CATNB` as the argument
- To use the Cat-M1 network technology, please use `CATM1` as the argument

For the `client.connect(server, port);` function, the port is predefined as `80`. It is required to define the server, and the port argument if necessary, to successfully carry out the operation.
If you want to learn how to run a sketch with this library or how to switch between Cat M1 and NB IoT, please take a look at our [Portenta Max Carrier and Portenta H7 Cat M1/NB IoT tutorial](https://docs.arduino.cc/tutorials/portenta-max-carrier/catM1-and-NBIoT)

The antenna connectors for both LoRaWAN® and cellular modem with the microSIM slot are indicated as the following image:

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