My iPhone 5s battery depletes really fast, and indicator can be inaccurate at times (showing 1% for hours even during usage). Is the battery faulty?

My iPhone 8 plus have no sound whenever I use Waze, Google Maps and even Apple own Maps.

The phone is not connected to any bluetooth devices/car. Only this 3 apps got no sound. Other apps got no problem with sound.

I only have this problem after updating to the latest iOS. Previously got no problem at all.

Anyone encounter this problem and have the solution?

Hi guys, recently my iphone 8 rear camera stopped working. It's not showing anything, just black as if there's something blocking the camera. My front camera on the other hand is working perfectly. I also realised that rear flash can't no longer be used. It's dead alongside the rear camera. I've never dropped the phone and it's not water damaged. I've tried to reboot the phone, I erase the settings to default and also updated the ios version but still no changes. Is it hardware problem now?