How to make a new dark look on your samsung device ?1. Open settings . 2. Select accessibility option and open it. 3. Then select visibility enchanements . 4. Then select high contrast theme , and it got 2 options for just select it and it will take ...

For this problem . 1. Open settings. 2. Open general management. 3. Go to reset option . 4. Select reset network settings , select your sim . 5. And your are finished . For Samsung A series , and M series