Recently I changed the network provider from Rodgers to Chatr. iPhone XR stopped connecting with LTE. I used the same SIM for an Android and it worked. Chatr support said that I had to change from ISO 17.4.1 (21E236) to ISO 17.4.1 (21E237), which I did. But it did not solve the problem. Anyone who had a similar problem?
E, 2G, 3G, 4G, LTE, VoLTE, 5G all are Carrier Specific features. Contact your Carrier (Cellular Service Provider), the agency that issued the SIM / eSIM to you. About the LTE options on your iPhone - Apple Support (IN)
See the Pic below and explanations thereof
The pic below is self-explanatory
However iPhone model specific feature is listed here --> Identify your iPhone model - Apple Support . and tap on "See the Technical Specs for Model XXXXXX" under each model and Scroll down to "Cellular and Wireless" section.
Know it here --> All about G, E, 3G, H, H+, 4G, VoLTE, 5GE and 5G symbols ...
XR does not work with CHATR sim card
