an ipad mini with a cellular connection running ios15 can activate even without a sim, as ios15 includes an esim provided by apple for activation. this means prior to activation on a fresh boot it's already identifying itself to the tower and leaking your location and IMEI, WITH NO SIM INSTALLED.
@sneak This will work even if I don't register the e-sim with a carrier?
@nattukaran yes it's on a blank factory new device with no registration or activation of any kind
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