My friend was using ESET mobile security on Samsung galaxy 3. While tried to run a security scan, it asked for a password but she forgot that. Having no other way found, when she tried to uninstall ESET mobile security, it asked for a unlock code, but she never put any other pw than the security pw in it. However, the phone is not working..just a black screen with white window is asking the unlock code. She also didn't set a friend's sms number for reset. What to do now? For an antivirus , a costly phone can't be dead forever...Please help. There must be some way.