How can Jio work in a 3G phone?

Jio 4G SIM can be used in a 3G phone, but it will only provide 3G network speeds, not 4G. Here's how you can make it work:

Requirements:

• Android Version: The phone should run Android 4.4 KitKat or above.
• Chipset: The phone should have a MediaTek chipset for some methods.

Steps to Use Jio 4G SIM in a 3G Phone:

1. MTK Engineering Mode App Method:

   • Download and install the MTK Engineering Mode app.
   • Open the app or enter your phone's specific code for Engineering Mode.
   • Go to MTK Settings and select the "Preferred Network" option.
   • Choose the network mode as WCDMA (3G) since 4G won't work on a 3G phone.
   • Save the settings and restart your phone12.

2. Dialer Code Method:

   • Open the dialer and type *#*#4636#*#*.
   • Go to "Phone Information" and scroll down to "Set Preferred Network Type."
   • Select "LTE/GSM auto (PRL)" or any LTE option, though it won't provide 4G speeds.
   • Insert the Jio SIM in the primary slot and restart your phone2.

3. Manual Network Selection:

   • Go to Settings > Mobile Networks > Network Operators.
   • Manually select the network. If Jio is available, it will show up after a search2.

Important Notes:

• Speed Limitation: You will only get 3G speeds, not 4G.
• Compatibility: Ensure your phone meets the requirements for these methods to work.
• Risk: Proceed with caution as these methods involve modifying network settings.

These methods essentially trick the Jio SIM into working on a 3G phone by using the 3G network capabilities of the phone. However, true 4G speeds will not be achieved.