Xiaomi India — mi a1 restarts on receiving calls

Address:

682030

I bought a new xiaomi mi a1 from oxygen store @ palarivattom jn, eranakulam, kerala. It works fine when you have a very good signal but the moment you try to receive a call at a low signal area it just restarts. So basically we cannot receive any calls at home if the signal is bit low. I went back to oxygen showroom expecting it to be replaced, but to my surprise they said they will send it to mi service center and fix if it can be. I had bit of argument them with but without much choice i left my mobile there. I called them in the evening to get the status, the response was bit of a non-sense, it looks like mi service center has given a feedback to use a new sim. I informed them that i already got a new 4 g sim and asked them to explain what do they mean by a new sim. They didn't say much, just said give 2-3 days and will let me know the status. I am not able to understand when i am under replacement guarantee period why should i take a serviced phone