
Apple Confirms iPhone 18 Pro Max Cellular Defect on AT&T Network
Apple has confirmed that a small number of iPhone 18 Pro Max devices on the AT&T network are experiencing a cellular connectivity failure that cannot be fixed via software updates. Affected units, which display an 'SOS' icon instead of signal bars, must be replaced for free through Apple or AT&T. While the issue appears isolated to the Pro Max model using a Qualcomm modem, Apple and AT&T have released iOS 27.0.1 and a carrier settings update to prevent the problem from affecting other users. The root cause remains unconfirmed, though the defect is distinct from other launch issues like Face ID glitches or speaker anomalies.













