@Sunshine I'm facing the same issue with MR6400 V4 Router. Please provide the firmware or an alternative for the same. Thanks Sunshine wrote @Abhishek98 Hi, please double-check the hardware version...

Hi Community and Technical Support, Could you please provide a solution for Jio 5G sim not working on MR6400 - V4? I tried upgrading the firmware and also upgrading using the beta versions available...