I have bought a number of MAX BR1 Minis and used them successfully with Verizon SIM cards that I’ve taken out of hotspots and installed with adapters to get the right size.
I’m trying the same thing with Sprint SIMs, and they do not work. My Sprint rep is telling me that the IMEI number is telling her that “this device can’t be activated with Sprint service.”
Everything I’m seeing on-line suggests that it should be compatible. My device is a MAX-BR1-MINI-LTE-US-T.
Are there different models of BR1 Minis, and I have the wrong one? Is this firmware related? (I can’t confirm what firmware the BR1 is running at this time.)