Methods To Convert Upgrade Airtel 3G SIM To 4G {Online and Offline}

Convert Airtel 3G Sim To 4G

The switch from an Airtel 3G SIM to 4G is a basic necessity for Airtel customers who want to avail advanced communication features. You get to experience a fast internet connection, improvised voice and video quality, advanced network coverage, and much more through 4G Network. Henceforth, if you’re someone who wants to access smooth connectivity without any network issues then you should upgrade from Airtel 3G SIM To 4G or Airtel 5G depending on the service availability and interest. Currently, we have briefed below how an Airtel user can easily convert Airtel 3G SIM to 4G through online and offline methods.

Methods To Convert Upgrade Airtel 3G SIM To 4G {Online and Offline}

3 Simple Methods To Convert Airtel 3G SIM To 4G

All the below methods have varied procedures so make sure you follow the right steps to upgrade from Airtel 3G to 4G. For a smoother experience, you can clarify your doubts (if any) with Airtel Customer Support before upgrading your SIM card.

Online Through Airtel Official Portal

If you fill out the form online to convert Airtel 3G SIM to 4G then you will receive your Airtel 4G SIM on the same day at your doorstep. However, sometimes it might take 48-72 hours or 7 days too. So, it’s advisable to keep a backup SIM always for emergency purposes. Once your SIM card is delivered, the Airtel representative will complete the KYC and in a few minutes, you can activate your new Airtel 4G SIM. See below how you can upgrade from Airtel 3G to 4G online:

  • Step 1: Firstly, visit the Airtel official website from your device web browser
  • Step 2: Select the recharge plan out of Rs 299 (28 Days Validity) or Rs 479 (56 Days Validity)
  • Step 3: Enter your official full name, Airtel Mobile number correctly
  • Step 4: Choose the “No, I want a new connection” option to get a new Airtel 4G SIM on the same connection
  • Step 5: Fill in your area pin code, current residential address, and other details
  • Step 6: Tap on the “Submit” button to make the final confirmation. You’ll receive a new Airtel 4G SIM soon

Contact Airtel Customer Care

You can call 198/121 and ask Airtel customer care how you can upgrade from Airtel 3G SIM to 4G. They’ll guide you with the necessary instructions for this procedure. However, for a few additional verification processes, you’ll be asked to visit the nearest Airtel Store. Upon confirming your identity, the store executive will update the details and your SIM card will be modified from 3G to 4G. You’ll receive a confirmation message on your registered Airtel number and email address once it’s facilitated by the Airtel. After everything is sorted out, activate your SIM at the store itself or ask the executive for help.

Also Read: Upgrade Jio SIM From 4G To 5G For Advanced Connectivity

Visit Nearby Airtel Store

You can also directly reach any Airtel store closest to your current location and request them to convert Airtel 3G SIM to 4G. Here’s how the procedure will take place so have a look and make sure you’re on the right path.

  • Step 1: You need to find the address of the closest Airtel store online and reach there
  • Step 2: Get in touch with an Airtel representative and tell them that you want to switch from Airtel 3G to 4G service
  • Step 3: Fill out the SIM upgrade form with important details and submit ID proof for identity verification
  • Step 4 (Optional): Provide your old 3G SIM to the staff if you’ve requested a new SIM on the same number
  • Step 5: Open the new Airtel 4G SIM packet provided to you and insert the SIM into your smartphone. Make sure that your SIM card is clean before inserting the SIM card to avoid SIM card damage or corruption.
  • Step 6: Simply activate your Airtel 4G SIM and start using voice, data, and SMS services
Secondary Way: You can also ask the Airtel store executive to swap your Airtel SIM with a new one. In this case, you’ll get a new SIM but your number will remain the same.

Quick Method To Activate Airtel 4G SIM

Just upgrading from Airtel 3G to 4G isn’t enough as you’ve to activate your new Airtel 4G SIM as well. Go through the steps mentioned below and quickly enable your 4G Airtel SIM.

  • Step 1: Search for 20 digit SIM number at the back surface of your new 4G SIM
  • Step 2: Send SIM “20 digits New SIM serial number” to 121 from your Airtel number
  • Step 3: Follow the IVR prompts and respond to the confirmation message by pressing 1
  • Step 4: Press 1 again after receiving the confirmation call and your SIM will be successfully activated. In the next few minutes, your old Airtel 3G SIM will get deactivated and you can now use the Airtel 4G SIM which you activated recently.

Basic Steps To Enable 4G Network {Android and iOS}

Additionally, you need to activate 4G service on your device too after upgrading to Airtel 4G SIM. The steps are pretty simple and easy to implement. Kindly go through them below.

  • Android Users: Go to Settings > Mobile Network > Choose Preferred SIM > Preferred Network Type (4G/3G/2G Auto)
  • iOS Users: Tap on Settings > Mobile Data > Mobile Data Options > Voice and Data > Tap on 4G, VoLTE On or 4G

Eligibility Criteria To Switch From Airtel 3G To 4G

Airtel can offer you the liability to switch from 3G to 4G only if you fulfil the requirements asserted by them. A list of important ones is mentioned below for your reference.

  • You should be using an Airtel SIM for at least 90 days or more on 2G/3G handset
  • You should have a valid address proof, birth certificate, and NIN (National Identification Number)
  • You should have no existing dues on your Airtel Postpaid number (if you use a Postpaid SIM as well)
  • Ensure that there’s sufficient balance on the Airtel Prepaid SIM

Check If You’re Eligible For Airtel 4G SIM

Though Airtel offers this seamless facility of switching from 4G to 5G SIM but you need to ensure that you’re liable to access this service or not. Here are a few ways to confirm if this service is available on your number or not.

  • Notification On Airtel App Banner: Airtel will showcase a striking banner on your Airtel Thanks App if this offer is currently running on your number. You’ll be directed to another page by tapping this banner. This page will contain all the necessary prerequisites to avail the Airtel 4G SIM and its services. You’ll be notified by SMS if your number is eligible. This service is valid only for 30 days from the day you switch to 4G handset so make sure to remember the duration. Once you request to avail the offer, it’ll be processed within 24 hours.
Note: This service is currently unavailable in Kerala State Circle. Kerala customers can access 4G services over the radio only.
  • Dial 51111: An amount of Rs 20p/min will be charged if you call on this number. You can only make a call from a registered Airtel number. If your number falls under the eligibility criteria to use this service then you’ll get notified about it along with free data. You’ll also be informed by Airtel if you’re not eligible.

Also Read: Upgrade Vodafone SIM From 4G To 5G & Enjoy Smooth 5G Connectivity


As an Airtel user, when you switch your network from 3G to 4G all your services are put on hold for 24-48 hours. You’ll face message failure on Airtel and won’t be able to make calls or use mobile data. Under such situations, be patient and wait for the stipulated period to get over. Once your Airtel 4G SIM is fully activated you can resume using all the services again.

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