How to completely delete iphone 6 mobile phone information without being searched?

If you are a user who is currently logging in to Apple ID in iCloud, you can use "Find My iphone" on any iOS device to log in to Apple ID and choose to clear the data.

Demonstrate how to search out deleted messages:

1. First, open the "Info" application of iPhone, and find the SMS content to be deleted. Then click the "Edit" button in the upper right corner.

2. Next, please check the email to be deleted, and then click the red "Delete" button below.

3. Then click the "Delete Information" button to confirm the deletion.

4. Now, let's go back to the home screen and slide our finger to the right on the home screen until the "Spotlight one-click search" interface appears.

Next, we will enter the search keyword in the "search box". I enter the keyword "Test" here to delete the previous SMS content, and then click the "Search" button in the lower right corner. The result will actually show the text messages we have deleted before.