@stefan_italy Hi, thanks for the feedback. May I know who your SIM card carrier is? and if you login the web interface of the MR6400 via tplinkmodem.net or 192.168.1.1, are you able to send SMS...

@Shinjisan Hi, thanks for the reply. Regarding the speed difference, please check if your phone is working on 4G+ or even 5G, the MR6500v supports up to LTE CAT4, which doesn't support 4G+，most...

@TayyabManzoor Hi, may I know who the SIM card carrier is? and what is the model no. of your phone? On your MR6400, please go to Advanced->Network->Internet page, try to change Band from Auto to...

@Edilson01 Hi，really sorry to hear that, it seems the device is bricked due to the power outage during a firmware update. Please try to reset it to factory defaults by pressing and holding the reset...

@Shinjisan Hi, your current firmware and ISP version is the latest version. If there is any issue with the product or internet access, please provide more details, we will try our best to assist.

@chipshorter Hi, we do have MR600 V3 now, but the availability in different countries might be different and it takes some time for shipping to different areas as well. Therefore, it is recommended...