"iPhone requires cooling before using flash." How to fix the problem?

Apple smartphones are unconditionally high-quality devices that have good technical support from developers. Of course, many problems do not require a long search for solutions, because many articles and guides are already available on the Apple website. But it happens that the instructions provided are scattered separately and finding the right solution is quite a task. Let's go over the main points
If you discover this problem, it is worth considering that in iPhones the camera and flashlight are quite closely connected and a malfunction of one element can lead to problems with the other. Therefore, here are some “first aid” tips for your phone:

• Try switching the cameras from front to back and vice versa several times.
  
• Lightly press with your finger in the place where the camera is located (the whole problem may be due to loose contacts).
  
• Close any applications that require the camera or flashlight, and then try using the camera again.
  
• Try activating energy saving mode. To do this, go to your smartphone’s settings, select the battery, and turn on the energy saving mode.
  

Deep preparation
The methods described above may not help everyone, of course, so let's look at more complex ways to solve the problem that has arisen:

• Try completely erase data from your iPhone.
  
• Restore the latest current firmware using DFU mode.
  
• If you are not afraid, you can try to remove the back cover of the phone and check whether the camera cables are well connected and whether the battery is in order.
  

When this issue occurs, it is important to check all methods to find out why the error is appearing. As a last resort, you can take the phone to a service center, where specialists will try to fix it for you for money.