Several Pixel, Motorola and Nothing models are reportedly unable to use the service.
Some smartphone users are unable to access Airtel's Fast Lane service, which uses 5G network slicing to offer faster speeds, even though their phones support 5G standalone networks.
Reports point to issues on several Google Pixel, Motorola and Nothing models, with Airtel's app saying the phone lacks the required software.
Google said carrier configuration updates usually arrive through monthly security patches or quarterly feature drops, but gave no timeline. Motorola and Nothing said they were discussing the issue with Airtel.
Airtel launched the service in May at no extra charge for eligible postpaid users. Experts say slicing requires specific modem and software support beyond basic 5G standalone compatibility.
