1. Dust/moisture/cracked lens/dirt
The problem could occur because the device has either dust/dirt/moisture/a crack on their lens. You can solve the problem by cleaning its lens using a clean cloth.
2. Front/rear camera/cracked lens needs replacement
If the issue is still occurring after cleaning the lens, it is necessary to replace either the front/rear camera or the cracked lens. You can solve the problem by replacing the parts in one of our stores.
To protect lenses from future damage, try our camera lens protectors, available online or instore.