I bought an S5 Active from an online retailer in the US to use with Koodo. The first phone they sent me had a crack in the screen which was interfering with getting at the settings menu, so I sent it back and they mailed me a replacement. I put the old SIM car into the new phone.
I used to get a weak connection on the old phone, but I get nothing on the new one. Comparing it to my mother's iPhone, I'm getting a 20 dB weaker signal. She's with Telus, so it should be the same network.
Is there any way I can conclusively test the antenna to prove there is something wrong with it? The retailer is hesitant to replace it again, and I can't say I blame them, so I want something ironclad to send their way.