Sounds like there is some telco compatibility issue. Which carrier are you using and in which country? Is it in the list of compatible carriers as per our articles BraX3 Connectivity: Global Compatibility Overview
The actual tech support is on this forum. You were sent here so it can be determined if an issue is related to software or hardware, before you get a replacement device and find out it didn’t change a bit.
There is usually a reason on why things don’t work well. Your issue with the BraX3 sounds like telco compatibility issue. We can try to help if you provide more info. Not sure why your other degoogeld phone didn’t work for you. Some things won’t work as well on degoogled phones as they do on google or apple phone, because of a decision to improve privacy at the expense of some functionality or convenience.
Email [email protected] if that’s the case.