How to use 4G SIM in 3G mobile phones?

After JIO 4G SIM, the question arises for many that how to use 4G SIM in 3G smartphone and this question is reasonable too. 

The reason is because everyone have Aadhar card and possible to get 4G SIM by showing 4G device whereas sometime they might have 3G gadget too for which they have to use JIO SIM in it while travel and on.

Now, they may be asking how to use 4G SIM in 3G smartphones? If you have the same question then find the below steps to enable 4G SIM in 3G handset. This steps might be little different for different 3G devices, however, you have to judge best accordingly.

Steps on how to use 4G SIM in 3G smartphones?

Go to dial pad and key in as *#*#4636#*#*

You will see a different testing page screen and select choose Phone information 1

Go down till you find the Set Preferred Network type and click on it

Find and select LTE/GSM auto (PRL) or any LTE option

This is how you have to use Jio sim in 3g mobile

In case if you are still unable to get the signal after this tricks then you have to select the network manually. Because after enabling LTE sometimes you may get message like "your device won’t select the network" (you may try the below steps for this). You have to do manual for it. 

So, after enabling LTE no restart required from the phone, you can just place the 4G SIM or JIO SIM in the primary slot. As said above, If you face the 'no network signal or emergency calls only' option then follow these steps.

How to enable 4G Network in 3G mobile to use 4G SIM or JIO 4G SIM 3G Phone? If you still didn't get it then follow the manual steps given herein below;

Go to "Settings" option

Go to Mobile networks

Go to "Network selection" and choose the network manually

You will see related 4G network signal in your area by doing it manually, just select the right one.

You may sometime get an error like “can’t connect to this network”, in this case, be patient and wait for some time.

After sometime, it will register automatically.

Now, you can enjoy 4G or JIO SIM in 3G smartphone.

If you don't get the right 4G network then select any 4G network resulted and proceed with it.

You may further add the comment to assist you in case if you are unable to do so. However, some of the 3G handset won't work in these steps due to various reasons like unbranded one or net connectivity access issue or technical issue and on.

Tips: It is better to buy 4G smartphone. Who know's in future 5G feature too may come.