5G connectivity issues with iPhones in the USA can stem from several factors, including carrier-related problems, software bugs, or settings configurations[1][2][3]. Here's a breakdown of potential causes and troubleshooting steps:
Potential Causes:
* Carrier Issues: Some carriers may not fully support 5G in all areas, or there may be network congestion issues[3][1].
* Software Bugs: iOS updates can sometimes introduce connectivity issues[5][6]. For example, some iPhone 15 Pro Max users reported 5G/5GUC connection problems after updating to iOS 17.0.3[6].
* Settings Configuration: Incorrect network settings or disabled 5G settings can prevent iPhones from connecting to 5G networks[2].
* Low Power Mode: Enabling Low Power Mode can sometimes interfere with 5G connectivity[1][4].
* SIM Card Issues: Problems with the SIM card can also cause connectivity issues[2].
Troubleshooting Steps:
1. Check 5G Settings:**
* Ensure that 5G is enabled in your iPhone's settings by going to Settings \> Cellular \> Cellular Data Options \> Voice & Data and selecting 5G**[2].
2. Toggle Airplane Mode:**
* Turn Airplane Mode on, wait a few seconds, and then turn it off[4][5].
3. Restart iPhone:**
* Restart your iPhone to refresh network connections[2].
4. Turn off Low Power Mode:**
* Disable Low Power Mode to see if it resolves the issue[1][4].
5. Reset Network Settings:**
* Reset your network settings by going to Settings \> General \> Transfer or Reset iPhone \> Reset \> Reset Network Settings**[2][4]. Note that this will delete saved Wi-Fi passwords.
6. Update iOS:**
* Make sure your iPhone is running the latest iOS version by going to Settings \> General \> Software Update**[2][5].
7. Check for Carrier Settings Updates:**
* Check for carrier settings updates under Settings \> General \> About**[2].
8. Contact Carrier:**
* Contact your carrier to confirm that your plan supports 5G and to inquire about any network issues in your area[2][3][7].
9. SIM Card:**
* Remove and reinsert the SIM card[5].
10. VPN:**
* In some cases, VPNs have been reported to help with 5G connectivity issues[1].
Citations:
[1] https://www.reddit.com/r/tmobile/comments/pyl54z/iphone_13_pro_issues_with_5g/
[2] https://community.verizon.com/t5/5G/iPhone-not-getting-5G-or-5Guw-all-of-a-sudden/m-p/1729719
[3] https://www.youtube.com/watch?v=fxh4zwXtuo8
[4] https://www.igeeksblog.com/5g-not-working-on-iphone/
[5] https://www.tenorshare.com/fix-iphone/5g-not-working-on-iphone.html
[6] https://discussions.apple.com/thread/255180498
[7] https://support.apple.com/en-us/108383
[8] https://economictimes.com/magazines/panache/iphone-14-pro-users-flag-5g-connectivity-issues-heres-what-happened/articleshow/94473348.cms