All articles tagged with #qualcomm modem
Apple confirmed that a subset of iPhone 18 Pro Max devices on the AT&T network are losing cellular service, requiring hardware replacement. While iOS 27.0.1 and a carrier settings update prevent new failures, they do not restore service for already-affected units. The issue is isolated to the U.S. model using a Qualcomm modem, whereas the iPhone 18 Pro with Apple's C2 modem remains unaffected.
AT&T has sent text messages to iPhone 18 Pro Max customers in the United States, urging them to immediately update to iOS 27.0.1 to resolve cellular connectivity issues. Affected devices are failing to connect to the network for calls, texts, and data, often entering SOS mode. While the update was released to fix a Face ID issue, many users report it does not resolve the cellular problems. The issue appears isolated to the U.S. version of the device, which uniquely uses a Qualcomm modem, though the root cause remains unconfirmed.
The upcoming iPhone 15 Pro and iPhone 15 Pro Max will feature major improvements in 5G speeds, thanks to the new Qualcomm X70 modem. Speed test data reveals that these devices offer up to 24% faster 5G speeds compared to the iPhone 14 Pro lineup, with Verizon users experiencing the biggest gains. The improvements primarily focus on boosted download speeds, with minor improvements in upload speed and ping times. Apple is also developing its own in-house 5G modems, but those are not expected for several years.