4G SIM in iPhone 13

Restart your iPhone This fix might seem to be suspiciously simple, but sometimes, simple is all you need to resolve your iPhone 13 Pro mobile data problems. You can do this by going to settings > General > Shut Down. After turning your phone back on, check if your cellular data is working again.

Apple’s new iPhone 13 series has Qualcomm’s X60 modem, the same unit that’s in the Samsung Galaxy S21 Ultra and other leading smartphones this year. Like the iPhone 12, it supports all of the US’ 4G and 5G networks and then some: It will also support the new “C-band” airwaves coming online in 2022.

Manual network selection

To turn Cellular Data on or off, go to Settings > Cellular . To set options when Cellular Data is on, go to Settings > Cellular > Cellular Data Options, then do any of the following: Reduce cellular usage: Turn on Low Data Mode, or tap Data Mode, then choose Low Data Mode.