Tool to deactivate Locknut variants.
1. Install F-Locknut.sis into the infected phone's memory card with a clean phone
2. Put the memory card with F-Locknut into the infected phone
3. Start up the infected phone, the application menu should work now
4. Go to Application manager and uninstall the SIS file in which you installed the locknut variant
5. Download and install F-Secure Mobile Anti-Virus to remove any possibly Cabirs dropped by the locknut variant
6. Remove the F-Skulls with Application manager