Contributor
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1 Message
Two AT&T SIMs Simultaneously
I have a Samsung SM-A7100 dual SIM unlocked phone and I have two SIMs both with AT&T and active, but for some reason I can not get both SIMs to work together. If SIM1 is selected I can only make and receive calls using that number and the same happens when I select SIM2. Is there anyway to get both SIMs to be usable without having to manually switch back and forth between the two?
sandblaster
ACE - Expert
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64.6K Messages
6 years ago
I'm not familiar with that phone but most dual sim phones only support 2G service on the second sim. If that is the case with your phone, ATT has shut down 2G service.
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