Understanding the Limitations of Jio SIM in 3G Handsets
In today's world of evolving technology, the distinction between 3G and 4G handsets can often be confusing. If you're curious about using your Jio SIM in a 3G handset, this article will help you understand the potential issues and offer some solutions.Technical Description
Jio SIMs are designed exclusively for 4G/LTE networks, which operate at different frequencies than 3G networks. The digital transmission of voice calls through a Jio SIM requires a 4G infrastructure. With a 3G handset, your device is not capable of sending or receiving voice calls through a Jio SIM due to the mismatch in technology standards. You might see a message indicating 'EMERGENCY CALLS ONLY' or simply no signal for voice calls.Why 3G Handsets Can't Use Jio SIM
Reliance Jio primarily operates on 4G networks, specifically using LTE technology. 4G phones are equipped with hardware and software capable of handling the higher data rates and more advanced features of 4G networks. On the other hand, 3G handsets are designed to support older network standards and do not have the necessary hardware to interface with 4G networks effectively. This fundamental difference in hardware restricts the use of a Jio SIM in a 3G handset.What to Expect
- No Voice Calls: Attempts to make or receive voice calls will not be successful. Your 3G handset will either display an error message or show no signal. - No Data Access: You won't be able to access the internet or use data services with a Jio SIM in a 3G handset.Alternatives: Jio Fi and WiFi Connection
While a 3G handset cannot support Jio SIM for the purpose of voice calls, it can still be a useful device for browsing the internet and using data services through other means. - Jio Fi: Jio Fi allows you to share your 4G network with multiple devices through a portable hotspot. You can connect your 3G handset to Jio Fi and thus use the internet and other data services. - Other WiFi Connections: You can also use your 3G handset for data services by connecting to a WiFi network. Jio offers mobile data services through their hotspots or if you have an internet connection available in your area.Workarounds and Solutions
Although using a Jio SIM in a 3G handset is limited, there are some creative solutions that might help. One such workaround involves entering the Engineering Mode on your 3G mobile device to manually set the preferred network mode.
How to Enter Engineering Mode
Step 1: Download and Install CPU-Z from the Playstore: Click here. Step 2: Install and open the app. It will retrieve your device information. Step 3: If your device uses a Mediatek chipset, you will see its logo on the screen. If not, follow the next step. Step 4: Download and install MTK Engineering Mode app. You can find it here. Step 5: Open the app and use the specified code to access the Engineering Mode. Step 6: In the Engineering Mode, set your preferred network mode to 4G LTE, WCDMA, or GSM. Step 7: Save your settings and turn off and on your device. Step 8: Insert your Jio 4G SIM in the 1st slot and keep the 2nd slot empty. Step 9: Once the device restarts, your Jio SIM should be recognized.Please note that manipulating your device's settings in this way is risky and should be done with caution. Always backup important data before attempting these steps.