Any suggestions? We just came back from Mexico. We were there for 10 days. I took my Galaxy s8+ that i just switched to from my iphone 6s+ and my wife took her iPhone 7. We are on the AT&T unlimited plan that includes unlimited everything in Mexico. Our phones always tried to default first to AT&T mexico towers which in the area we were in had a terrible 2g signal. As long as the 2g signal was an option it wouldn't search for the local Telcel signal that was 4g and a strong signal. I found an option on my GS8+ to turn off 2g so since AT&T didn't have anything but 2g and weak 2g at that my phone switched to Telcel 4g with a good signal. My wife's iPhone was unusable for the entire 10 days since iPhone doesn't have the option to turn off 2g. Any thoughts on how I could have made this any better? We tried to reset settings etc...but it always defaulted to 2g AT&T with one or 2 bars.