I see. Could such a USB Sim device be used on the BraX3?
Maybe the easiest would be a Bluetooth 4G/5G dongle, the USB maybe is not recognized even if it works on iodé.
Pinephone uses the Quectel EG25-G LTE modem, itâs actually a Qualcomm device. Itâs a PCB soldered on the motherboardâs PCB and communicates through USB along with some more connections like power, audio and other control pins.
Those devices are also sold as Single Board Computer âhatsâ that connect on the GPIOs.
Connecting this to the USB port should be recognised by Linux, then you can control the modem either through AT commands or through Qualcommâs QMI interface (libqmi for Linux).
I donât know how the audio could go through the phone, probably you can connect the 3.5mm jack to the modem so that incoming audio and microphone can go through.
It would be better to try and debug the SoCâs modem.
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I never saw anybody have a Sim device like this. Where did u buy it?
this comes inside the Pinephone as its native modem, itâs not visible, and they also come in other versions like SBC hats and regular USB dongles, itâs nothing special
Maybe I can get one for my Linux Mint computer. What do they call an external Sim device?
Both laptops and desktops can get internal PCIe devices, the external USB is something like the following but you have to verify that works with Linux, https://www.aliexpress.com/item/1005007805531839.html , you can find 5G too.
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Cool-I bookmarked that. It seems handy for an emergency situation. Thanks!