After the launch of simple SMS process by Bharat Sanchar Nigam Limited for SIM Swap, the 4G SIM card upgradation of BSNL made very easy, Follow the simple steps for swapping with new SMS codes and replace your existing 2G or 3G SIM with new 4G SIM.

First, Approach nearest BSNL Retailer or Customer Service Center

Ask for BSNL 4G SIM and Get the SIM on payment or as Free as per the existing condition

Send formatted SMS code from your working mobile as RE4G SIMNo CircleCOde to 53734

Confirm the same by sending RE4G YES

Activate 4G SIM on your BSNL mobile number with 15minutes to 24 hours of time

For latest updates on BSNL 4G visit [ Ссылка ]

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