You can install an APP named tpMiFi in your phone or ipad, then you can access to SMS.

What model is your router? There should be a reset button in your router, please find it and long press it. (the router should be power on)

Hi, The two FWs are basically the same. I don't think there is version upgrade limitation between the two FWs. You can try to reset and re-upgrade to 160919 then try again.

Hi, Battery of V3 's is 2550mAh, while V3.20's is 2000mAh.

Has you changed your SIM card when you go to other countries? MR200 can work only when the SIM card's frequency is supported by it.

Hi, The newer version is more stable, and it may solve some bug appeared in the older version. It is recommended to choose the latest version, because the older version are end of life, and it is...