My iPhone 7's back camera and flash light are not working

Hello senuja273,

In reference to the issue you're facing with the rear facing camera and flash, you'll want to complete the steps listed below as they're specific to resolving those issues. You can also find these steps outlined in the following article.

1. "Remove any case, accessory, or film that might block the camera or flash or that places a magnet near the camera.
2. Test the camera by trying to take a photo.
3. Test the LED flash:
   1. Try the flashlight in Control Center on your iPhone or Control Center on your iPad. On an iPhone X or later or an iPad, swipe down from the upper-right corner of the screen. On an iPhone 8 or earlier, swipe up from the bottom edge of any screen.
   2. Tap the Flashlight button ."

If you prefer, here are some more steps you can try on your own if the camera isn't working. You might still need to contact Apple Support after following these steps. 

1. "If the photo is blurry, clean the front and back camera lenses with a microfiber cloth. If you see dirt or debris inside the lens or if the camera lens appears to be misaligned or blocked, contact Apple Support to discuss service options.
2. Restart your iPhone, iPad, or iPod touch. 
3. Test the camera again by taking a photo. If your device has a front and rear camera, check if one or both isn’t working. To switch cameras, tap the rotate button ."

If the camera or flash on your iPhone, iPad, or iPod touch isn't working - Apple Support

As for the issues you're facing with Bluetooth and Wi-Fi, the following articles provide great troubleshooting steps that can help with reaching a resolution.

If you can't connect a Bluetooth accessory to your iPhone or iPad - Apple Support

If your iPhone or iPad won't connect to a Wi-Fi network - Apple Support

If you continue to have issues after completing those steps, please let us know if you continue to have issues with the camera, and provide a detailed description of the issues you're having with Bluetooth and Wi-Fi. The more information we have about the issues you're facing, the more accurate our troubleshooting will be. We wouldn't be able to speculate if the issues you're facing are related to the battery.

Have a great day!

Hi senuja273,

Sounds good.

Let us know if you need additional assistance after those steps.

Take care!