3G Shutdown- Did You Know You Can SMS a Number and It'll Tell You if Your Device Will Work after Shutdown?

Got an older device and you aren't sure if it'll work properly after 3G shuts down?

SMS to "3498" (yep, just 4 digits), and in body of text type "3G".

It'll reply in a couple of seconds whether your device will work ok without 3G.

You're welcome :).

Comments

    • +5

      Oh…. they didn't come up on search.

      Just got excited after hearing about it, and after a quick search with no hits I posted. Apologies.

      • +1

        Still worth a post imo. Not sure everyone has dug into the comments of those threads

      • No need to apologize

        • Why not?

  • +1

    How could you possibly be unsure if it has a SIM that you can SMS from?
    I've been getting SMS reminders weekly as well as every time I make a call despite the fact my phone is actually probably 100% going to be fine (only minor doubt is Emergency calling, but even that I'm reasonably confident on)

    • ??

      3G hasn't been turned off yet. Of course there's a lot of people out there unsure if their phones will work.

      • +2

        My point is that the carriers are very pro-actively notifying people who have incompatible devices. (it's an opportunity to sell you a new handset after all!)

        • +2

          too proactively ;).

          they are messaging me insinuating the urgency of a new phone, but carefully using words like 'may' and 'should'.

          I reckon more than a few people (especially more vulnerable ones) are buying new phones now out of fear now, when it may not even be required at all.

          • @UFO:

            too proactively ;).

            Yes, on this we are agreed.

        • +1

          Some people don't read SMS messages…

    • +2

      3G Kindles are harder to receive messages on.

  • +7

    Not sure if this is 100% accurate for all phones.
    Despite my phone (Poco F3) supporting 4G/5G VoLTE & VoWIFI and most of the necessary frequency bands, I constantly get texts/emails from Amaysim saying I need to upgrade (they're even threatening to turn off my auto-renewal).

    • +1

      That's why I posted.

      I'm getting almost daily sms's on the kids phones telling me they 'have detected I'm using an older phone that uses 3G and it may not work correctly' and I should purchase a new phone/s.

      Yet when I test them using the above number, they'll work fine.

      • How long did it take? I tested it with my S23 Ultra ~an hour ago and still haven't gotten anything back yet…

        • Sending "3" should work.

        • Within seconds. eSIM on Telstra using a Pixel 8 Pro

      • +3

        My experience on the 2 previous occasions that I've tested (in April and June) is that this service tells me in no uncertain terms that my device "will" be impacted ,despite the AMTA service telling me they don't really know, and that my device is happily using VoLTE.

    • -1

      Calls to emergency numbers 000 and 112 will probably not work.

      From Optus email:
      Even though you have a newer 4G/5G model it relies on 3G to make emergency calls to 000, putting your safety at risk when 3G is switched off. You will not be able to make calls to Triple Zero ‘000’.

      More info:
      https://www.lightreading.com/2g-3g-4g/australia-could-delay-…
      https://www.aldimobile.com.au/blogs/3g-shutdown-faqs/emergen…
      https://www.acma.gov.au/3g-network-switch

      • +1

        100% inaccurate, you can see my previous comments and screenshots on other posts.

        • Care to provide any proof here? I can't read all your 549 comments.

        • -1

          Ok, I found your screenshot, but it doesn't mean that other Xiaomi/Poco models (or even Redmi Note 5 with a different firmware) will be using 4G for emergency calls.
          Also, if your network is not available, the phone will try to connect to other networks and possibly switch to 3G.

          • @doperst:

            Ok, I found your screenshot, but it doesn't mean that other Xiaomi/Poco models (or even Redmi Note 5 with a different firmware) will be using 4G for emergency calls.

            I never claimed that.
            The point is what you stated above and the comms from Optus etc… are 100% inaccurate.

            My phone is now 6+ years old, so it's safe to assume there will be many other phones out there that can easily be set to use 4G/Volte/etc… as a default, and they shouldn't have issues as long as they support the necessary bands.
            IMHO The more reliable way to test is to see if you can then make calls, including to 000, and check what network is being used.

            Also, if your network is not available, the phone will try to connect to other networks

            So the same as any other phone?

            and possibly switch to 3G.

            There are settings in most phones to avoid that, unless there is no 4G network available to you at all in the area, in which case you'd have the same issue with a new phone.

            • -1

              @RiseAndRuin:

              There are settings in most phones to avoid that, unless there is no 4G network available to you at all in the area, in which case you'd have the same issue with a new phone.

              As far as I know, there are no such settings specifically for emergency numbers. Which can be called without a sim-card and therefore follow different rules. Some phones may switch to 3G band because it's 'more reliable'.

              The only way to prove is to call 000 and test, but obviously it's not a good idea.

              In any case I'm sure the providers will continue harassing us until we update our phones..

    • +2

      Looks like you and I are in the same boat as I too have the Poco F3

    • +4

      i have a redmi note 10 pro. i enabled VOLTE using the method described elsewhere on the forum. it works fine on the vodafone network, which had 3G turned off at the beginning of the year

      • Good to hear :)

  • -1

    Did You Know You Can SMS a Number and It'll Tell You if Your Device Will Work after Shutdown?

    Yes

  • It just occurred to me today that I got my electricity smart meter back in 2009. When I looked up 4G, it didn't come to Australia until 2011. And I can't recollect anyone ever asking for access to the locked garage its in to update it to 4G. I've contacted my electricity retailer, but I know they don't own the meters or do the remote meter reading.

    • AFAIK most smart meters use a different wireless standard, not 3G or 4G.

      • We'll see what my electricity retailer says.

        Google can find me plenty of sites that say they do use the cellular phone network. And others that say the supplier involved is updating the modem in their meters so they'll continue operating when 3G goes down.

      • I got the answer from my electricity retailer.

        It says the meter company is currently converting its meters from 3G to 4G, and they'll SMS me for access when it is required.

        So, yes, electricity smart meters use the 3G/4G network.

        And if they are still in the process of doing it even as Telstra is putting off the 3G shutdown, it is indicative of pretty poor planning for something that that was planned a long way in advance.

        • SP Ausnet used WiMax… there’s a range of technologies out there in use.

          That is very poor if there are still some 3G ones out there!!

  • +7

    I believe this method is not accurate, it might tell you your device will not work just based on the model name of your device. They might have some kind of white list, but it is not complete.

  • +1

    The SMS isn't accurate - my parents phone has 4G (on by default) and VOLTE (which wasn't on by default but I turned it on through hidden settings/dial codes) - but the SMS service says their phone won't work in the future.

    • +1

      The final unknown is whether Emergency calls will go over VoLTE, which apparently it wont on some models.

      It's just occurred to me that I know my handset doesn't (no longer) connect to Telstra's VoLTE due to the manufacturer's and/or Telstra's shennanigans with settings that are baked into the device Firmware and are therefore not user accessible/programmable.

      I also know that Emergency calls can me made on any network.

      So it's very possible that if I'm in a Telstra only area, even though my handset might happily direct 000 calls over VoLTE on Optus's network, it would be unable to do so on Telstra's, and thereby heavily limit the coverage area that Emergency calls might be made.

      This is not something that I've read before, just a hypothesis that makes sense that I've arrived at now.

  • +3

    I sms'd that number now lots of hot russian women want to date me

  • +1

    Telstra sent me a free phone because I hadn't done anything about upgrading to 4g. It's a Telstra T-inspire. No sim card though so I had to go to the shops and buy one as my old sim card is 10 years old and too big to fit in the new phone.

    • Are you on a post paid plan ?

      • +1

        prepaid - casual. I get the 6 months for $35 one.

  • +3

    From Amaysim (Optus Network) just now:

    Hi JV,
    Just a quick update about your auto-renew setting. We had told you that your auto-renew would be switched off this Friday 16 August. This won’t be happening just yet as the 3G network switch off has been pushed out to 28 October 2024.

  • +1

    Just need to check if your phone has:
    1) B28 (700 MHz)
    2) VOLTE

    You can check network specs/bands supported by your device by performing a google search (GSM Arena is mostly up to date and has most phones)
    Also check page 4 of this guide to check if your phone has VOLTE.

    • -1

      Just need to check if your phone has:
      1) B28 (700 MHz)
      2) VOLTE

      my phone doesn't have B28, yet I'm on 4G today with no issues, and receiving these silly messages from tesltra and optus. How will that 4G coverage change when 3G is turned off?

      Ive had messages saying my phone is fine, and messages saying it wont be: They dont know what they're doing, what chance for your parents or grandparents?.

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