用個軟件先試試

google一下, 苹果系統有很多這種軟件

window系統:
AnyMP4 iPhone Data Recovery 7.1.2.25037
一款专业的数据恢复软件，支持：iPhone 5S/5C/5/4S/4/3GS, iPad 4/mini/3/2/1, iPod touch 5/4/2
AnyMP4 iPhone Data Recovery 7.1.2.25037 Multilingual| 14.6 MB

AnyMP4 iPhone Data Recovery, owning the mighty and unparalleled deleted file recovery ability, is called “the world’s leading iPhone Data Recovery software” by users. With the worldwide leader, users can directly recover data including media content and text content from iPhone 5S/5C/5/4S/4/3GS, iPad mini, iPod touch 4, and more. And the ability of recovering previous data backed up by iTunes is very popular with Apple fancier. Before fully restoring, you are allowed to preview these lost files.
- Directly recover any lost data for iPhone 5S/5C/5/4S/4/3GS, iPad 4/mini/3/2/1, iPod touch 5/4/2, especially the newest iOS 7 devices
- Recover 5 types of Media content: Camera Roll, Photo Library, Photo Stream, Message Attachments, Voice Memos
- Recover 7 types of Text content: Contacts, Messages, Call History, Calendar, Notes, Reminder, Safari bookmark
- Reinstate in the accidentally deleted and lost data from broken, damaged, corrupted and traumatized iOS devices
- Restore all the data information including photos, contacts, messages, videos, and more saved in iTunes Backup for your iPhone, iPad and iPod
- Preview and get back your deleted files in the main interface before recovery

盜版:
Download 百度云
http://pan.baidu.com/s/1pJryght

不會的話,
花錢找公司,,,