On Monday, Apple released a carrier update specifically for Verizon iPhone 5s to address an issue that caused the smartphone to still consume cellular data even while on WiFi, an issue that can be serious with Verizon’s tiered data plans.
This carrier settings update resolves an issue in which, under certain circumstances, iPhone 5 may use Verizon cellular data while the phone is connected to a Wi-Fi network. Follow these instructions to install the update.
1. Tap Settings > General > About.
2. Wait for the following alert to appear: (top right)
3. Tap OK to install the update.
4. Hold the Sleep/Wake button down until you see “slide to power off”.
5. Slide to power off.
6. After the device powers off, hold the Sleep/Wake button to turn your phone back on.
Note: To finish the installation of the update, your iPhone 5 must be turned off and then on again. After your iPhone restarts, tap Settings > General > About, then scroll down to Carrier and verify that “Verizon 13.1″ is displayed.
The update is different from other iOS updates, particularly because it applies to only one of the many carriers the iPhone 5 is carried on. It is delivered in the iPhone’s settings as an Over-the-Air (OTA) update and is marked as important by Apple, likely because the issue is sporadic and may or may not affect a user. It is unclear if this cellular data issue has appeared on other networks such as Sprint or AT&T but there is no word on that at the moment, and appears to be only Verizon at this point.