Hello! I received a replacement of my iPhone 7 a week ago. I noticed that my battery drained quickly while watching YouTube and browsing Instagram. Almost 1% per minute. Sometimes if battery is 25% than after a minute it shows 26%. Another problem is that while watching videos on YouTube my headphones output is very low as compared to other iPhone 7, even with using different headphones. At half volume the sound is hard to hear. Lastly, when I setup my phone to recover data from iCloud the device get noticebly hot. I'm really worried.