@Megamau Good day. Mi-Fi products, like M7350, they are not recommended to use when it is still in charging, which would shorten the lifetime of the battery and the device sometimes would get much...

@NeilH Good day. In this way, have you ever checked whether there is any obvious broken part inside the sim card slot? By the way, did you use the sim card holder and label to fix the sim card? After...

@DeepVns Good day. Have you ever checked with Jio, Do they allow send or receive SMS? Thank you!

@Suriya Good day. When the router failed to work on band 40, have you tried to modify the DNS server on the router to have a look: Please go to advanced>network>LAN settings>change DNS address to be...

@Satheskumar Update: There has already been a beta firmware that could manually choose the network band....

@Abhi093 Thank you for your correction. I have already modified it. You must be very experienced!