@S1687 For MR6400 V4(the same as MR600 v1 or other models in beta firmware), the beta firmware provided the option to manually select the 3G/4G bands which the modem supported theoretically(all the...

@Gohr HI, did you mean the SIM card status now is “PIN required”? If yes, could you please have a look at this link to unlock the PIN? [Troubleshooting]No internet service on LTE Gateway Router

@atty Hi, It seemed like you already have the latest firmware. So there would be no new firmware detected. And for the second notice, is the red notice on the web UI “a new version is present” in...

@Abdol Hi, the beta firmware is on the following link: Manual Band Selection for 4G WiFi Routers

@dsirivat Hi, your current firmware is much updated than what we have on the official website. Did you get this firmware since you had the modem? And how long have you had the modem? As for the no-ip...

Update： If you happen to see the following notification when trying to bind the router to your TP-Link ID, Please refer to the following suggestions: 1. A factory reset would always be the first way...