Hi guys, I need your help. I've been using GrapheneOS for about 4-6 months now and I'm thrilled and have a good feeling about it. But now I've read that the sim card also tracks all data and sends it to the phone provider without being able to prevent it. Is this true or is there a way to prevent this without removing the SIM card from the phone?

    The only way to prevent cellular tracking is by putting your phone into Aeroplane mode. This will stop all communications to cell towers. This allows you to carry your phone with you everywhere you go in case you need to use it but without worrying about being tracked every step of the way.

    joeconny Is this true or is there a way to prevent this without removing the SIM card from the phone?

    Even if you take the SIM card out of the phone, your phone will still connect to cell towers. That's why you can still call emergency services without a SIM in the phone. The SIM is used to determine what services the device can use and other stuff. For example, my plan only allows me to connect to 4G/LTE and below. Not that 5G matters anyway as it isn't available where I live.

      joeconny But now I've read that the sim card also tracks all data and sends it to the phone provider without being able to prevent it.

      First of all, the SIM card isn't tracking anything. I'm assuming you mean your cellular service provider? Second of all, what do you mean by "all data"?

      I'd suggest you read this section of the website. It covers a lot of what you're asking here: https://grapheneos.org/faq#cellular-tracking