If you activated internet data pack on your sim. After all, you are not able to access 3G/4G internet data. You need to enable this 3G internet service on your number by calling on customer care. The second option is you can activate this service by sending a keyword SMS from your mobile number to enable the service.
How to Activate all SIM 3G/4G Internet Data Service
1. Activate Idea 2G/3G/4G SIM 3G/4G Internet Data Service
| USSD Detail | Keyword Short Code |
| Activate Idea 3G services | SMS “ACT3G” to 12345 |
2. Activate BSNL 2G/3G/4G SIM 3G/4G Internet Data Service
| USSD Detail | Keyword Short Code |
| Activate BSNL 3G services | SMS ”START 3G” To 121 |
3.Activate Airtel 2G/3G/4G SIM 3G/4G Internet Data Service
| USSD Detail | Keyword Short Code |
| Activate Airtel 3G services | SMS “3G” to 121 |
4. Aircel 2G/3G/4G SIM 3G/4G Internet Data Service
| USSD Detail | Keyword Short Code |
| Activate Aircel 3G services | SMS “START 3G” to 121 |
5. Docomo 2G/3G/4G SIM 3G/4G Internet Data Service
| USSD Detail | Keyword Short Code |
| Activate Docomo 3G services | SMS “3G” to 53333 |
6. Vodafone 2G/3G/4G SIM 3G/4G Internet Data Service
| USSD Detail | Keyword Short Code |
| Activate Vodafone 3G services | SMS “ACT3G” to 144 |
7. Uninor/Telenor 2G/3G/4G SIM 3G/4G Internet Data Service
| USSD Detail | Keyword Short Code |
| Activate Telenor 3G services | SMS “ALL” to 58355 |
8 Reliance GSM/CDMA 2G/3G/4G SIM 3G/4G Internet Data Service
| USSD Detail | Keyword Short Code |
| Activate Reliance 3G services | SMS “Start” to 1925 or Dial 1800 100 3333 |
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