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[TECHNOLOGY] · United States · 62 sources

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Part of situation: iPhone 18 Pro hardware and connectivity issues (4 clusters)

Apple confirms iPhone 18 Pro Max cellular issue on AT&T network

iPhone 18 Pro Max AT&T cellular connectivity issue Apple SOS signal

Apple has confirmed a cellular connectivity issue affecting a small number of iPhone 18 Pro Max users on the AT&T network in the United States. Affected devices may experience a total loss of cellular service, displaying an SOS signal in the status bar and preventing users from making calls, sending texts, or accessing mobile data. AT&T has warned that this issue could potentially prevent users from making emergency 911 calls.

To prevent further occurrences, Apple has released iOS 27.0.1 and a carrier settings update. However, Apple stated that these software updates are intended to be preventative and cannot restore service to devices that have already lost connectivity. For those already affected, Apple is requiring a full hardware replacement.

Technical analysis suggests the issue may be linked to the specific hardware configuration of the US model (A3473), which utilizes a Qualcomm Snapdragon X80 modem rather than Apple’s in-house C2 modem used in other regions. Additionally, some users have reported cosmetic issues, specifically discoloration around the rear camera lenses on Burgundy and Black iPhone 18 Pro models.

Entities

AT&T · Apple · Qualcomm · Snapdragon X80 · United States · iPhone 18 Pro Max

Claims

What the coverage asserts, and how many sources carry each claim.

Sources

iPhone 18 Pro mới mua đã xuất hiện dấu hiệu đổi màu [baogialai.com.vn]
مميزات آيفون 18 برو المنتظر. . تحكمات جديدة [www.akhbrna.ae]
أزمة بهواتف آيفون 18 برو. . تغير لون الأجهزة بعد أسابيع ومستخدمون يطالبون باسترداد أموالهم - وكالة صدى نيوز [www.sadanews.ps]
Hàng loạt iPhone 18 Pro Max dính lỗi mất sóng, Apple phải tung chính sách thay máy mới [thuonghieusanpham.vn]
آبل تؤكد وجود خلل في هاتف iPhone 18 Pro Max. . ما القصة؟ [dailynewslb.com]
iPhone 18 Pro Max 爆開售後最大災情！AT&T 用戶斷網 官方確認：「無法靠更新修復」或需換機 [www.pcmarket.com.hk]
iPhone18 Pro Max又出事 用户突断网手机变SOS [reddot.my]
iPhone Duo foldable launch: Apple bets on £1,999 folding phone under new chief [www.nationalheadlines.co.uk]
美iPhone 18 Pro Max爆斷訊災情！蘋果證實中招用這兩招解決 - 瘋先生 [mrmad.com.tw]
If You have a AT& T iPhone 18 Pro Max…Apple wants You to return it for a Different One… [politicaldog101.com]
애플 : AT&T 셀룰러 문제 발생한 아이폰 18 프로 맥스는 수리 불가 - 미코 [meeco.kr]
iPhone 18 Pro Max AT&T Cellular Issue Requires Device Replacement [world-today-journal.com]
Apple reconnaît un bug du réseau AT&T sur l'iPhone 18 Pro Max [geekyalgeria.com]
iPhone 18 Pro Max users face SOS signal issues on AT&T network [gigabeat.com]
Apple tells AT&T iPhone 18 Pro Max users to replace devices over bug [bizwatchnigeria.ng]
Apple fordert Austausch für iPhone-18-Pro-Max-Nutzer bei AT&T-Störfall [www.it-boltwise.de]
إقتصاد وتكنلوجيا - أبل تكشف خللاً في آيفون 18 برو ماكس. . وأجهزة متضررة تحتاج إلى الاستبدال [www.adngad.net]
Apple Confirms iPhone 18 Pro Max AT&T Issue, Canada Unaffected [www.iphoneincanada.ca]
这类iPhone 18 Pro Max无法使用蜂窝网络，苹果：只能换机 - 经济观察网 － 专业财经新闻网站 [www.eeo.com.cn]
Apple admite el fallo más grave del iPhone 18 Pro Max: hay que cambiarlo [www.negocios.com]
iPhone 18 Pro Max : Apple remplace gratuitement les appareils défectueux [www.nouvelles-du-monde.com]
iPhone 18 Pro mới mua đã xuất hiện dấu hiệu đổi màu [thanhnien.vn]
Apple thừa nhận lỗi khiến iPhone 18 Pro Max mất sóng, máy đã dính lỗi phải thay mới [cafebiz.vn]
Apple thừa nhận lỗi khiến iPhone 18 Pro Max mất sóng, máy đã dính lỗi phải thay mới [kenh14.vn]
iPhone 17 Pro Max đã bị khai tử: Giá máy mới và máy cũ tại Việt Nam còn bao nhiêu? [cafef.vn]
Huawei Mate 90 Pro Max 2026: 12,000 Nits, 200MP, $1,418 [memeburn.com]
iPhone 18 Pro Max uzun oyun testinde fark attı: Yüzde 69 daha az performans kaybı [www.donanimhaber.com]
Final Cut Camera 2. 4 ist da: das ist neu [www.apfelpage.de]
Mac Duo : l'animation de l'iPhone pliable sur votre Mac [www.blog-nouvelles-technologies.fr]
iPhone 18 Pro Max – dla kogo większy ekran. . . [www.olsztyn.com.pl]
Ihr findet euer Handy zu teuer? Diese iPhones kosten weit über 10. 000 Euro [www.giga.de]
方方面面都熟悉，方方面面都更好：iPhone 18 Pro 体验 - 少数派 [sspai.com]
苹果 iPhone 18 Pro 系列手机海南免税价格出炉：相比官网正价便宜约 200-1430 元 - IT之家 [www.ithome.com]
Video: iPhone Duo und iPhone 18 Pro Max im Größenvergleich › Macerkopf [www.macerkopf.de]
iPhone18 Proの在庫情報【10/4】〜家電量販店SIMフリーの在庫あり増加 [iphone-mania.jp]
أزمة آيفون 18 برو ماكس. . أبل تقرر استبدال الهواتف المتضررة من عطل الشبكات [www.elbalad.news]
美版 iPhone 18 Pro Max 爆斷訊災情：更新救不回，蘋果被迫換機 [www.blocktempo.com]
Huawei Just Cooked Apple in Camera HDR: The Tech That Made It Possible [nokiapoweruser.com]
iPhone 18 Pro Max vs Samsung Galaxy S26 Ultra Specs Compared [www.world-today-news.com]
iPhone Duo στην έκδοση «Liquid Metal» από υγρό μέταλλο και τιμή αγοράς 21. 000 δολάρια [www.newsit.gr]
iPhone 18 Pro Max vs Samsung Galaxy S26 Ultra: here's how two of the best phones of 2026 compare [www.techradar.com]
Apple will replace iPhone 18 Pro Max devices with AT&T connection issues [sea.mashable.com]
Apple manda clientes trocarem iPhone 18 Pro Max após falha grave no aparelho [atarde.com.br]
AT&T-Netz: Betroffene iPhone 18 Pro Max müssen kostenlos ersetzt werden [borncity.com]
iPhone Duo vs iPhone 18 Pro Max: quanto cambia nelle dimensioni? C'è il video [tech.everyeye.it]
iPhone 18 Pro Max: AT&T-Ausfälle lassen sich nur per Gerätetausch beheben [www.ad-hoc-news.de]
Apple bestätigt AT&T-Fehler beim iPhone 18 Pro Max [www.blogspan.net]
Apple Says iPhone 18 Pro Max Users With AT&T Cellular Issue Need to Have Device Replaced [www.macrumors.com]
Apple Confirms AT&T iPhone 18 Pro Max Problems. You Might Need a New Phone [au.pcmag.com]
Gaming : l’iPhone 18 Pro Max met une énorme claque à son prédécesseur, voici pourquoi [www.phonandroid.com]
Apple iPhone Duo To Go On Sale In October, Check Price, Specs, And More [www.timesnownews.com]
iPhone Duo vs. Galaxy Z Fold8 and Fold8 Ultra: Which Foldable Should You Buy? [www.iclarified.com]
iPhone 18 Pro Max｜美版用AT&T即斷線變磚 更新iOS救唔返 蘋果願換機 [www.stheadline.com]
In Gold We Trust-Report: iPhone: Billiger als je zuvor - aber nur für Goldbugs [www.finanznachrichten.de]
Apple confirms iPhone cellular issue, admits affected units can't be fixed [www.macworld.com]
Apple Confirms AT&T iPhone 18 Pro Max Problems. You Might Need a New Phone [uk.pcmag.com]
Four Major Issues Are Plaguing the iPhone 18 Pro and 18 Pro Max [au.lifehacker.com]
Halide Camera App Takes Apple's New Variable Aperture Even Further [petapixel.com]
AT&T Issues Urgent iPhone 18 Pro Max Warning Over Cellular And 911 Glitches [hothardware.com]
iPhone 18 Pro Max users on AT&T: Take these steps to save your service [mashable.com]
Apple confirms iPhone 18 Pro Max AT&T cellular issues, affected devices require hardware replacement [9to5mac.com]
iPhone 18 Pro Max Can't Make a Call on AT&T? Apple Says It Will Replace It for Free [www.cnet.com]