Swapping out Gateway Procedure

There were no instruction in the box but seems you just swap the SIM to the new unit.

Unfortunately  my replacement gateway showed broken. Booted up says Celular HW failure does not get any bars. I called tech they we did everything now they think it is a tower issue really how would that be. They don't want to ship me another unit they are asking me to wait for an engineer to check the tower. I think it's obvious I have another bad gateway and need a replacement.

I have factory reset it several time keeps saying Modem RF Hardware failure when it boots. I think the problem is obvious this is a bad unit.

Still waiting for a call back from the engineer who is checking the tower but how can that even be an issue with this message. The units can work on 5G or LTE old unit did get bars no issue so it's clear to me this unit is bad. I don't understand why they cannot ship me another one asap.

But I think it is becoming clear as both my wife and I work from home and need reliable internet T Mobile internet may not be the answer for us. I was going to cancel Comcast end of the month but looking more like I will be finding a package deal and sending back the T Mobile gateway.

I have been a long time customer I had hoped for the best but this is not reliable internet service.

I think they need to set the stores up with units to swap as waiting for units to ship is not practical for people that need internet to work from home.