How to delete the number of iphone SMS?

Iphone SMS number cannot be erased, as shown below:

1. Open Settings, Applications, Management Applications, All, Information.

2. Clear the data after opening, which can be done by most mobile phones.

3. This is just clearing short messages. The key problem has not been solved. Maybe I won't delete the information when it is full next time.

4. If there is an updated version, the update will be fine, and the new version may not fix this BUG.

The introduction of iPhone is as follows:

On June 9, 2007, Apple released its first mobile phone iPhone(iPhone2G) at Macworld Conference held at Masconi Convention and Exhibition Center in San Francisco, USA.

On June 10, Beijing time, Apple released the iPhone3G in San Francisco, USA.

In the early morning of June 9th, 2009, Beijing time, Apple released the iPhone3GS at the WWDC2009 (Apple Global Developers Conference) held at the MosconeWest Convention Center in San Francisco, USA.

On June 8th, 20 10 Beijing time, Apple released the iPhone4 in San Francisco, USA. On October 5th, 20 1 1 year/kloc-0, Beijing time, Apple released the iPhone4s at its headquarters in Cupertino, California, USA. On September 2, 2012 1 day, Apple released the iPhone5 at the Cao Fang Art Center in San Francisco, USA.

On September, 2065438 1 1, Apple released the iPhone5c and iPhone5s in Cupertino, California.