This could be virus problem, i advice you scan your phone for virus to ensure the phone is virus free, because when virus attack phone, there are different ways the effect can show up, scan your phone to ensure it is virus free.
If the problem still persist, then you will need to reset the phone, if there is any reset button on the phone, you can use it to reset the phone, but if none, follow this procedure to reset it, power on the phone, during the process of the phone loading, pull out the battery from the phone, this will help reset the phone without losing any data.
Answers & Comments
Hello,
This could be virus problem, i advice you scan your phone for virus to ensure the phone is virus free, because when virus attack phone, there are different ways the effect can show up, scan your phone to ensure it is virus free.
If the problem still persist, then you will need to reset the phone, if there is any reset button on the phone, you can use it to reset the phone, but if none, follow this procedure to reset it, power on the phone, during the process of the phone loading, pull out the battery from the phone, this will help reset the phone without losing any data.
Take care