HT204380 Help please. My FaceTime do not work after update system ios7. And generally disappeared from the menu

Question

I do not know what to do.   
If you come into contact, then the function FaceTime is frozen
Please help

Answer 1

Yes. And since you aren't backed up, you may have to use Prosoft Data Rescue to try to recovery any information that is critical. First though, do you have another Mac you can hook this one up to using Target Disk Mode?
If you do, that's another way to rescue information. Target Disk Mode is explained here:
http://docs.info.apple.com/article.html?artnum=58583
Similarly, if you have a bootable external hard drive, you can try to boot off that with the Startup manager:
http://docs.info.apple.com/article.html?artnum=106178
To rescue your information. This at least will allow you to do further analysis to see what data corruption might have happened. If the drive is invisible when booted off another, that may indicate a directory issue. But first let's see if we can attach or boot off another and see the internal drive of the machine.