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Despite the widespread popularity of enabling 4G on iPhone nowadays, there is still a considerable number of users encountering difficulties with this feature. Specifically, many readers have faced the issue of 4G not turning on on iPhone. So, what is the cause of this problem?
Guide to troubleshooting 4G not turning on issue on iPhone
In this article, we will delve into each cause and solution so that you understand why the 4G issue on iPhone is occurring on your device.
1. Your SIM card is not a 4G SIM
Firstly, the new 4G SIM technology has been dominant since late 2017 up to now. Hence, many people still mistakenly believe that the mobile phone SIM cards we used 2-3 years ago still support this 4G technology. In reality, to utilize 4G on your phone, you need to visit the transaction centers of network providers such as Viettel, Vinaphone, Mobifone to switch from 3G to 4G SIM cards.
2. Your SIM card is faulty
In case you've previously replaced your SIM card with a 4G one at the transaction centers of major network providers like Viettel, Vinaphone, Mobifone but still encounter the issue of 4G not turning on on iPhone, it's highly likely that the problem originates from your SIM card.
* Solution :
Try checking with another 4G SIM card inserted into your iPhone device. If your iPhone still receives 4G, it indicates that your SIM card may be defective or damaged.
If your iPhone still doesn't receive 4G signal, try implementing additional troubleshooting methods to fix the 4G not turning on issue on iPhone below.
3. iPhone does not support 4G
* Your iPhone device does not support 4G
Currently, we have the following types of iPhone devices that support 4G signal:
+ iPhone 5, 5s.
+ iPhone 6, 6s.
+ iPhone 6 Plus, 6s Plus.
+ iPhone 7, 7 Plus.
+ iPhone 8, 8 Plus.
+ iPhone X.
+ iPhone SE.
If you are using iPhone devices older than iPhone 5, such as iPhone 4s, 4..., then these iPhone devices of yours are not supported for 4G.
* Using Locked iPhones
Differing from the above, the use of Locked iPhones in Vietnam is increasingly common nowadays. And one thing you should know is that these Locked iPhone devices themselves, when using a SIM adapter, cannot enable 4G signal on Locked iPhone devices.
To check if your iPhone device is Locked or not, you can refer to the article differentiate Locked iPhones.
4. Your device has not activated 4G on iPhone
This is also a common reason nowadays, especially for those who are new to using these premium iOS devices. And to activate 4G on iPhone, we have the following steps:
* Implementation Method
Step 1 : From the usage interface, you access the Settings app and tap on the Cellular section.
Step 2 : Next, you activate the Cellular Data option as shown below. Then, we select the Cellular Data Options section
Step 3 : Finally, to fix the issue of not turning on 4G on iPhone due to not being activated, we will choose the Voice & Data and select LTE to activate 4G on iPhone.
- Note : For iOS 11 and above devices, this method can be skipped.
5. Mobile network data error
If you have attempted to activate 4G on iPhone without success, it's highly likely that the reason for the 4G not turning on issue on iPhone is that your device has encountered a mobile network data error, and we will perform the following troubleshooting:
* Solution :
Step 1 : You continue to access the Settings app, and select the General section as shown below. Then, we will search for and tap on the Reset option.
Step 2 : Here, to fix the issue of not turning on 4G on iPhone, you will select the Reset Network Settings option, and confirm Reset Network Settings to perform this action.
So, we have just together explored the main causes of the 4G not turning on issue on iPhone as well as how to fix this problem on your device. Hopefully, with the above methods, you will be able to use 4G on iPhone more easily.
https://Mytour.vn/cach-sua-loi-khong-bat-duoc-4g-tren-iphone-23019n.aspx
In addition, we cannot rule out the possibility that your device may have hardware damage causing the 4G not turning on issue on iPhone. You will need to visit an iPhone warranty center to receive assistance and address this issue.
