Hi, i just restarted my phone couse it freeze… and my phone thinks i lost it, and when i type PIN that avast send me, mobile doesnt work… i need phone for my work, and this sucks… what i should do? i cant even use commands from pc, because my phone thinks he is stolen, and dont want to do anything 
please help me
https://my.avast.com
Start with marking your phone as found.
If you want to do it with sms commands, check the manual:
http://files.avast.com/files/documentation/mobile-security-user-guide-en-v2-4-updated.pdf