I received a SIM card from Airtel to upgrade my 3G SIM to 4G. How can I upgrade the SIM by myself?
a. Send a SMS to below format from your old SIM card.
UPGRD<Space>(SIM Number) and send the message to 780
e.g. UPGRD 899405XXXXXXXXXXXXXF send the message to 780
b. Once your get the confirmation message, insert the new SIM card to your mobile.
c. Ensure that you take necessary backups of your existing contact details saved on your SIM card prior to change.





