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opengrassyesterday at 10:07 PM4 repliesview on HN

Plausible. Only Rogers still has working 2G.


Replies

mcpherrinmyesterday at 10:25 PM

It doesn't matter what the network is doing; the phone needs to disable 2g. There's various ways to get the phone to downgrade to 2g otherwise, eg https://montsecure.com/files/2021_downgrade.pdf

Android has it as a toggle: https://source.android.com/docs/security/features/cellular-s...

iPhone disables it for phones in lockdown mode.

Scoundrelleryesterday at 10:24 PM

And if you have a modern enough SIM+phone combo, it won’t even display the 2g network as an available network, nor 3G on my device.

I wonder if this mostly hit international SIMs, since they wouldn’t be running the same level of SIM code to prefer various network locks like a local SIM.

Helps you stay under the radar and gov services over SMS is a lot more advanced outside of Canada if you want to do some fraud.

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stephen_gtoday at 4:38 AM

That's incredible, here in Australia they not only shut down all 2G networks almost a decade ago, but they've already shut down 3G as well!

Although now looking at Wikipedia there are a lot more 2G networks sticking around than I realised, still hard for me to believe given what's happened here!

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llm_nerdtoday at 12:29 AM

Which is interesting in that they very publicly shut down the 3G network last year.