Coimbatore : With BSNL planning to launch its 4G mobile services shortly, the customers have been asked to replace their SIM into 4G sim before February 10.

For using BSNL 4G services , mobile customers need to have mobile handsets capable of supporting 4G services and also have BSNL 4G SIM in their handsets.

All the 3G customers in the city area have to replace their existing 2G/3G SIMs with a new 4G SIM before the launching of 4G services.

All BSNL Mobile customers residing in Coimbatore City are requested to approach their nearest BSNL Customer Service Centres and get their SIM replaced by a 4G SIM free of cost before February 10.

They need to bring their ID card in original and also a photo copy of the same, an official release said.