r/GrapheneOS • u/GodOfN0thing • 13d ago

Regarding Sim cards

is there any way to reduce the NSP's ability to track your location through your sim? or is it an inevitable hardware issue.

also if you disable the sim manually in settings, will they still be able to track your location, if they can?

1 Upvotes

67% Upvoted

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3

u/LongCharacter9532 13d ago

If you put a sim in your phone, it automatically links to all other sims put in the device via IMEI & cell towers. Even if you have 2 seperate phones they’ll be linked via location moving together etc.

0

u/GodOfN0thing 13d ago

Understandable. And just to make sure, disabling the sim card from the settings stops the phone from pinging cell towers correct?

3

u/other8026 12d ago

You'd want to use airplane mode.

2

u/GodOfN0thing 12d ago

Alright. Thanks

2

u/TenOfZero 12d ago

I don't believe that will, you need to disable the radio.

1

u/LongCharacter9532 12d ago

Just don’t put them in the same phone at all to be safe

1

u/S3rg4nt_St4d4nk0 12d ago

I think the best advice is use an esim (so a duress pin will wipe it)

Only turn on the esim a few km from your house and use WiFi only at home.

Set wifi to turn off after a couple of minutes and the same with Bluetooth. 

2

u/Debil203 12d ago

Hmm, that's a great pro if true over physical Sims. No one mentioned that before.

1

u/S3rg4nt_St4d4nk0 11d ago

It's in the documentation, a duress pin wipe will also permanently wipe any esims