A

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Note that taking pin9 of the connected arduino high for a second will turn the gsm shield on/off without having to solder anything. O2 works fine.

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After struggling with the supplied libraries which need an older version of ide i gave up and started using at commands direct ... Read More

It does help to put the sim card the correct way round my mistake

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Our engine has discovered that over 90% high quality reviews are present.

This product had a total of 26 reviews as of our last analysis date on Jun 11 2023.

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Posted by a reviewer on Amazon

Ok so after a spending quite some time i managed to sort out my network connection

Posted by a reviewer on Amazon

After struggling with the supplied libraries which need an older version of ide i gave up and started using at commands direct to the sim module