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Home/ Questions/Q 6623921
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Editorial Team
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Editorial Team
Asked: May 25, 20262026-05-25T21:35:24+00:00 2026-05-25T21:35:24+00:00

I just got an old iPhone 3G for testing. It doesn’t have a plan

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I just got an old iPhone 3G for testing. It doesn’t have a plan attached to it, but I just put in the sim card and it said it will take a while to activate.

When everyone has test devices, do you just leave the sim card out? What about when testing location based services that need to find cell towers? What do we do in situations like this? I don’t want to pay for service.

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  1. Editorial Team
    Editorial Team
    2026-05-25T21:35:25+00:00Added an answer on May 25, 2026 at 9:35 pm

    You won’t get anything out of the cell towers without a valid SIM card. I use my wife’s old iPhone 3G for testing, and it still has the old AT&T sim card, but of course there is no service because that sim card is not on our account anymore. I always leave it in Airplane mode.

    The main thing I’m verifying with the physical device is performance, UI responsiveness, and memory issues that present no problems in the simulator, but choke on this old device. The iPhone 3G is great to have on hand as a minimum baseline for that stuff.

    The location-based stuff you should be able to mock up without needing any “real” data. Do a google search for “iphone” “mock location” and see what that turns up.

    This looks promising:
    http://rssv2.blogspot.com/2010/03/mocking-core-location.html

    You don’t want to have to develop with real, live data until you are in the beta stage anyways. Using real, live data during development is a huge hassle, not easily repeatable, and very time consuming. And this makes it impossible to write effective integration tests.

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