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  • DragonDragon@toast.dragon2611.net
    Aug 9, 2026, 8:22 PM

    Ah so it is true then you can indeed replace the SIM in a byd.

    Hardest part was getting the sodding panel off to access the SIM slot.

    If you are wondering why you might want to the SIM is only free for a couple years and it's also capped at 1Gb a month which if you use the native sat nav and Spotify integrations instead of carplay/aa goes rather fast.

    It's a full size SIM (well modern full size not the big smart cards) I used a 9esim nanosim in an adaptor with a esim.sm global esim as a test

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Replies

  • DragonDragon@toast.dragon2611.net
    Aug 9, 2026, 8:24 PM

    Whilst it was thought the cars apps and mobile app support relied on the byd SIM/private apn it seems this is actually not the case

    Hmm I wonder what the security implications are there.

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  • Forstforst@mastodon.social
    Aug 9, 2026, 8:29 PM

    @Dragon Makes me wonder what the difference between "purchase by user" and "giveaway by BYD" is. Maybe the APN? Or some traffic limits?

    Feels like a bit of an unnecessary choice to make, surely BYD could write some data to the SIM card to identify it as BYD-supplied?

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  • DragonDragon@toast.dragon2611.net
    Aug 9, 2026, 8:44 PM

    @forst I would assume it also looks for their APN if you hit that.

    I think esim.sm have a no IOT term though so i'm not sure they'd take kindly to me having it in a car, that said i'd probably use NXTL mobile if it's allowable as it's cheaper per GB on 3 of the 4 uk MNO's

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