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● LIVE Updated 1h ago · 11 sources tracked

Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced

Apple confirmed that a small number of iPhone 18 Pro Max devices used on the AT&T network are experiencing severe cellular failures. Affected units permanently lose service, which cuts off all phone calls, text messages, and mobile data. Apple states that devices already experiencing the failure cannot be fixed via software updates and must be replaced with new hardware. AT&T says it is working alongside Apple to address the situation. Meanwhile, Apple urges other users to install iOS 27.0.1 and new carrier settings to prevent uninfected phones from encountering the same bug.

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  • ✓ Apple confirmed a cellular issue affecting a small number of iPhone 18 Pro Max users on the AT&T network.
  • ✓ The bug causes devices to lose cellular service, preventing phone calls, text messages, and data from working.
  • ✓ Devices that have already lost service require a hardware replacement rather than a software fix.
  • ✓ Apple urges owners to install iOS 27.0.1 and new carrier settings to prevent the failure.
🛡️ Source Corroboration: 11 independent reporting domains (100% confidence) ⏱ Read time: ~2 min

What changed

Apple confirmed that users whose iPhone 18 Pro Max devices have already lost service on AT&T must return their phones for free hardware replacements.

Live updates

  1. Apple Says iPhone 18 Pro Max AT&T Issue Requires Device Replacements

    Apple confirmed that a small number of iPhone 18 Pro Max devices used on the AT&T network are experiencing severe cellular failures. Affected units permanently lose service, which cuts off all phone calls, text messages, and mobile data. Apple states that devices already experiencing the failure cannot be fixed via software updates and must be replaced with new hardware. AT&T says it is working alongside Apple to address the situation. Meanwhile, Apple urges other users to install iOS 27.0.1 and new carrier settings to prevent uninfected phones from encountering the same bug.

    Why it matters

    Hardware faults requiring complete device swaps are rare for modern smartphones, typically indicating deep baseband or modem integration failures. The incident places pressure on both the manufacturer and the carrier as customers lose basic communication capabilities on flagship hardware. While software patches can block unaffected devices from catching the bug, units already severed from the network require physical intervention.

    What is confirmed

    • Apple confirmed a cellular issue affecting a small number of iPhone 18 Pro Max users on the AT&T network.
    • The bug causes devices to lose cellular service, preventing phone calls, text messages, and data from working.
    • Devices that have already lost service require a hardware replacement rather than a software fix.
    • Apple urges owners to install iOS 27.0.1 and new carrier settings to prevent the failure.
    • AT&T stated that it is working with Apple to resolve the cellular issues.

    What to watch next

    • Further technical disclosures from Apple or AT&T regarding the root cause of the modem failure
    • Reports on the scale of affected hardware replacements processed in stores
    Sources used for this update (13)
    1. Bloomberg.com — Apple iPhone 18 Pro Max AT&T Glitch Requires Device Replacements
    2. 9to5Mac — Apple confirms iPhone 18 Pro Max AT&T cellular issues, affected devices require hardware replacement
    3. CNET — iPhone 18 Pro Max Can’t Make a Call on AT&T? Apple Says It Will Replace It for Free
    4. www.macrumors.com — AT&T on iPhone 18 Pro Max Issues: 'We Are Working With Apple'
    5. www.macrumors.com — Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced
    6. www.iclarified.com — iPhone 18 Pro Max AT&T Bug Requires Device Replacements - iClarified
    7. www.pcmag.com — Apple Confirms AT&T iPhone 18 Pro Max Problems. You ... - PCMag
    8. MacRumors — Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced
    9. PCMag — AT&T Urges iPhone 18 Pro Max Users to Update iOS to Fix Cellular Issues
    10. www.phonearena.com — iPhone 18 Pro Max owners on AT&T got the right treatment, but I think it exposes a bigger problem
    11. 9to5mac.com — Apple confirms iPhone 18 Pro Max AT&T cellular issues ...
    12. www.redmondpie.com — Having Cellular Issue With iPhone 18 Pro Max On AT&T? Apple ...
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