I went to the Apple Store in Burlington, MA yesterday (2/16/2018) None of the 'geniuses' there knew about this bug or how to fix it. They reminded me of microso

I went to the Apple Store in Burlington, MA yesterday (2/16/2018) None of the 'geniuses' there knew about this bug or how to fix it. They reminded me of microsoft drones following a troubleshooting script. 1) Reboot the phone 2) reset the phone 3) do a dfu restore.. After they did this my phone would not recognize its sim card. You see my phone originally had AT&T service. Then I switched to sprint some months back. I guess the dfu restore ended up relocking my phone to AT&T. At least that's what the Apple geniuses said. Then they said I had to go to a sprint store. This is the first time I was disappointed with Apple's human help. I remember past experiences going in there with a frayed power supply cord - they gave me a new one. On other occasions they replaced my phone when they couldn't fix it. They never spent more than 30 mins trying to fix a problem and always fixed it. Their knowledge was deep. This time their opinions were confabulatory - for example one guy said 'your phone does not have the antennae to work with sprint' EVEN THOUGH I reminded him I walked into the store with a working iPhone using sprint. Another one said that sprint jailbroke my phone and that's how they got it to work. WRONG. Another one said that the phone was 'soft unlocked' and relocked itself after the DFU restore. I felt sad for Apple because I know that's not what they were about. Then I suggested they replace my phone, the manager lady's eyes bugged out, her voice became stern and said ' There is no scenario where you walk out of here with a different phone'. This is the first time they wasted 5 hours of my time and actually caused me to have more trouble than what I walked in with. Galaxy here I come. or maybe pixel2