I have an iPhone 7 that’s maybe 4 or 5 months old. Recently, at completely random times for no explanation it will only get one bar of service and my 4g internet doesn’t work either even though it still says LTE next to the single service bar; top left of my screen. I’ve tried turning it off for a minute didn’t help, idk what to do at this point any sort of assistance or even speculation would be much appreciated. Thank you, btw my friends that use Verizon have not had any issues