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Use 2G automatically for calls?
There's this one trouble spot on T-Mobile [US] that my mother will occasionally complain about. The funny thing is that I've been able to replicate it, in the same exact spot, every time (I tried about 5 times).
I successfully forced my iPhone 5s to use 2G only, and the call happened to go through just fine. My mother's phone is the T-Mobile GS4 running stock (Samsung) 4.2.2.
So, I'm wondering if there's a tweak that will automatically switch the phone to 2G for incoming and outgoing calls, rather than relying on the 3G/"4G" network.
I guess at the vary least, I could find a widget to easily disable LTE and 3G when she knows she's going to go through the problem spot.