On your iPhone, go to Settings > Cellular > Cellular Data Options and tap Enable LTE or Settings > Mobile Data and tap Enable LTE. If your carrier supports Voice over LTE (VoLTE), you'll see these options: Off: Turns off LTE. Voice & Data: Allows voice calls and cellular-data use over LTE. Data Only: Allows cellular-data use, but not voice iPhone 7 or later. iPad 5th generation or later. Apple TV 4K or later. Apple Watch series 3 or later. Mac computers (late 2013 or later, with 802.11ac or later) Newer devices support authentication with WPA3 Enterprise 192-bit security, including support for 256-bit AES encryption when connecting to compatible wireless access points (APs). Turn off automatic HDR. By default, iPhone automatically uses HDR when it’s most effective. On some iPhone models, you can manually control HDR instead. On iPhone X S, iPhone X R, iPhone 11 models, iPhone SE (2nd generation), and iPhone 12, go to Settings > Camera, then turn off Smart HDR. Then from the camera screen, tap HDR to turn it off Downgrade iOS 16 with iMyFone Fixppo. 1 Launch Fixppo on your computer and select Repair. 2 Select the standard mode to downgrade your iPhone, iPad, or iPod touch. 3 Select iPhone model, and specify iOS 15 as the firmware you want to download. 4 Once the firmware is downloaded, click Fix Now. Most hardware that supported iOS 15 will also support iOS 16. Here is the full list of iOS 16 supported devices: How to view Live Activities on your iPhone Lock Screen with iOS 16.1 G29IWf.