Don’t place your subject in the middle of the frame. By placing it a third of the way in, you achieve a better result.
Avoid blurry photos by holding the camera steady. Try to steady your hand by leaning it against a solid object. You can also use the self-timer to make sure that the phone is steady when the photo is taken.
By getting as close as possible to your subject, you can avoid relying on the zoom. Try to fill the viewfinder with your subject.
Photos taken beyond the maximum flash range will be too dark. The maximum flash range is about four steps from the subject.
Think about different angles, and move towards the object. Take some vertical photos. Try different positions.
A plain background helps highlight your subject.
Mobile phones are used in all kinds of weather and places, and carried in pockets and bags. This results in the camera lens becoming dirty and covered with fingerprints. Use a soft cloth to clean the lens.