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5G UC not working: Quick Fix 

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  • 5 min read

5G Ultra Capacity (UC) is T-Mobile’s brand name for mid-band and high-band 5G networks.

Many users have reported that they are facing problems with the 5G UC network. If you are one of those users, then do read the article till the end to find the fixes to the 5G UC not working issue. But before that, let us understand the reasons why the 5G UC is not working optimally on your device.

5G UC not working: Possible reasons

Here are some of the possible reasons why 5G UC is not working on your device:

Device incompatibility

Not all devices support 5G UC as it is a relatively new technology. Read the user manual of your mobile to know whether it supports 5G UC or not.

Limited coverage

One of the primary reasons for 5G UC connectivity issues is limited network coverage. While 5G networks are expanding rapidly, they may not be available in all areas.

Network congestion

During peak hours or in densely populated areas, 5G networks tend to slow down. This is a temporary issue and the problem is resolved once the peak hours are over.

Firmware or software issues

Outdated firmware or software can cause compatibility issues with the 5G UC network.

Misconfigured network configuration

Misconfigured network settings such as incorrect Access Point Name (APN) or network mode selections on your device can hinder 5G UC connectivity leading to 5G UC not working issue.

Also read: How to find T-Mobile order status? “Being processed” explained

5G UC not working: 6 possible fixes

Now that we have understood the possible causes of why 5G UC may not work, let us dive straight into fixing the issue so that you can go back to surfing the web seamlessly.

Check network coverage

Visit this T-mobile link to check the 5G coverage. If you are outside the coverage range, chances are that you won’t be able to use 5G on your mobile device. Move into the coverage zone or use 4G for the time being.

Reinsert the SIM

Sometimes the sim card is not inserted properly or an incorrect setting of the SIM card is causing the 5G UC network to not work properly.

Take out the SIM from the tray and restart your phone. After that, reinsert the SIM again.

Restart your mobile

A simple restart can work wonders. In most of the fixes that we have covered so far, and we have covered a lot, restarting your device is one of the top most fixes that we recommend and it has worked wonderfully. Although not a technical fix, when you restart your device, it resolves temporary glitches affecting the functionalities which in this case is 5G UC not working.

Update your mobile’s OS

An outdated OS is often the cause of many issues on your device. Ensure that you have installed the latest version of the OS and all the relevant apps are also up-to-date.

To update iOS, follow the instructions given below:

  • Open Settings and then tap on General.
  • Now, tap on Software Update and then Download and Install.

Android users can follow the instructions given below to update the OS:

  • Go to Settings > System.
  • After that, tap on Check for updates. Also, turn on the toggle in front of Smart Updates. This will allow the device to install updates when it is connected to WiFi automatically.

Reset network settings

Resetting your device’s network settings can resolve configuration conflicts that might be hindering the 5G UC connection.

If you are using an Android mobile, go to Settings > System > Advanced > Reset options > Reset WiFi, Bluetooth and mobile.

For iOS, go to Settings > General > Reset > Reset Network Settings.

Contact T-Mobile customer support

If you have tried all of the above and 5G UC is still not working, you can contact T-Mobile customer support as the last option. They may be able to help you troubleshoot the issue.

Also read: What is Tmobile Edge?

Frequently answered questions (FAQs)

Here are some FAQs related to the topic:

How come my 5G isn’t working?

There can be many reasons why the 5G on your device isn’t working. Some of the reasons are misconfigured network settings, peak hour rush, you are out of coverage zone, your phone is incompatible with 5G, and outdated mobile OS, among others.

Does 5G UC work?

Yes, 5G UC works on the T-Mobile network in the US and UK.

Also read: Fix: Can’t send message with T-Mobile: error 0

Kumar Hemant

Kumar Hemant

Deputy Editor at Candid.Technology. Hemant writes at the intersection of tech and culture and has a keen interest in science, social issues and international relations. You can contact him here: