@Gaffer The support engineers was made aware of your issue. They will likely reach out to you via email to continue to troubleshoot your issue.

@Dakshith I'm afraid not, this is limited by hardware. You can only choose the supported bands: https://www.tp-link.com/home-networking/3g-4g-router/archer-mr400/#specifications 4G: FDD-LTE...

@nshetty Hi, can you please check the troubleshooting suggestions we provided here, then get back with the results? We will suggest further: https://community.tp-link.com/en/home/forum/topic/261882

@Manash Hi, have you tried to select the band manually on the MR600 web GUI? Please give it a go, reboot the device, then check the status again.

@Arion It doesn't include the band selection feature, you may keep the beat firmware if you need this.

@Vaibhav9975 Please ensure the hardware version of your MR600 is V1, download and unzip the provided beta firmware, then check again if you can upload it successfully. If still no luck, please show...