Huawei P7 Phone cannot manually set date-time resolution

1 in the P7 mobile phone desktop Click "Settings" to enter after we then click "All set" to enter after the "date and time" We click on it again.

2 and then in the open "date and time" you will see that there is one, can not modify the date, time, so return to "set all", and open "flight mode." (as shown in the following figure)

3) Now we click on "Date and time" and then "automatically confirm the date and time" uncheck.

4 after we enter the setting of "Set Time" Now you will find that the time date is normal to change oh.