How to Use Jio 4G SIM on Xiaomi Redmi 4

The Xiaomi Redmi 4 is a popular mid-range smartphone that supports dual SIM cards. One of the key questions that users often have is which SIM slot to use for Jio 4G. In this article, we will provide you with a comprehensive guide to using Jio 4G SIM in your Redmi 4.

Understanding the SIM Slots on Redmi 4

The Redmi 4 has two SIM slots, labeled as SIM 1 (microSIM) and SIM 2 (nanoSIM). Typically, SIM 1 supports 4G networks, while SIM 2 may only support 3G or 2G networks. This means that if you want to use Jio 4G, you should place the Jio SIM in SIM 1 slot to ensure you are getting the best possible network performance.

Using Jio SIM in the Primary Slot

As your friend mentioned, it is recommended to place the Jio SIM in the primary slot. This is because most modern smartphones, including the Redmi 4, support VoLTE (Voice over LTE) from the primary SIM slot. VoLTE enhances voice calls and ensures better quality and faster transmission of data.

Why SIM 1 for Jio 4G and VoLTE?

Both SIM slots in the Redmi 4 support 4G data, but the primary slot (SIM 1) is often preferred for better speeds and connectivity. Additionally, since Jio relies extensively on VoLTE for its services, using the Jio SIM in the primary slot is advisable. This setup ensures that you can fully benefit from Jio’s high-speed data and VoLTE capabilities.

Using Both SIM Slots for 4G

It's important to note that you can use both SIM slots for 4G data, but only one SIM can be activated at a time for a 4G network. If you place your Jio SIM in SIM 2 and change the preferred network type to LTE, then SIM 2 will support Jio 4G, while SIM 1 will revert to 3G and 2G service. Conversely, if you place the Jio SIM in SIM 1, you will maintain 4G service there, while SIM 2 will switch to 3G or 2G.

Setting Up Jio 4G on Both SIM Slots

If you choose to use both SIM slots for Jio 4G, follow these steps:

Go to Settings Sim Cards and Mobile Network. Select the Preferred network type and set it to LTE or 4G. Choose Jio 4G as your preferred mobile network operator.

This configuration ensures that both SIM slots can use Jio 4G simultaneously, although only one SIM will be in the active 4G state at any given time.

Summary

In summary, the Xiaomi Redmi 4 supports Jio 4G in either SIM slot, but the primary SIM slot (SIM 1) is recommended for optimal performance and VoLTE support. You can use both SIM slots for Jio 4G, but only one slot can be in the 4G active state at any given time. By following the steps and understanding the functionalities of the SIM slots, you can ensure you get the best experience from your Jio SIM in your Redmi 4.