I just swiped to answer the call while the phone was still sitting on my desk, but the loudspeaker was activated. On numerous occasions, my phone was on my desk when I received a call. I first thought my face activated the loudspeaker every time. Then for no apparent reason, the audio transferred to the loudspeaker. The phone call audio by default is to the speaker (not loudspeaker).Regardless if I called someone or someone calls me, randomly I cannot hear the other person, the other person cannot hear me, or we cannot hear each other at the same time.I would have to turn the data off then turn it back on to re-establish internet connection. Then the phone loses internet connection. I am outside in public and connected via 5G.When the wifi is off, that means I'm back on 5G, but there's still no internet. I have to turn off the wifi then turn it back on to re-establish the internet connection (via wifi). Then for no apparent reason, the phone just loses internet connection.

The phone is always connected to the home wifi.I've tried power cycling my phone several times and reset the network settings several times. These are the problems I have been experiencing. P – it means your iPhone is a personalized device, which means that the device has a personalized engraving. Replacement iPhones are usually refurbished devices as well. N – it means your iPhone is a replacement device, which means that it was replaced by Apple or Apple Authorized Service Center due to a problem. M – it means your iPhone is a new device, which was purchased from Apple Store Online or Apple Retail Store.į – it means your iPhone is a refurbished device. How do I know if the unit I received is new or refurb? I found a website and said the first letter of the model number indicate the type of iPhone as follows. I was told the replacement unit will arrive in a few days. The person at the Genius Bar said it is new, but I got a refurb unit.

The previous time I exchanged an iPhone was my 6+ years ago. I called Apple and they agreed to replace it, and they insist it is a new unit. I am having a lot of problem with my iPhone 12 ever since receiving it in Oct 2020.

Apple serial number refurbished