LG CU515 hard resetSecurity code (4 digits)
The security code protects the unauthorized use of your phone. The default security code is
set to ‘0000’ and the security code is required to delete all phone entries and to activate the
Restore Factory Settings menu. The security code default setting can be modified from the
Security Settings menu.
Settings > Reset Settings Menu
This function allows you to restore factory settings. To do this, you need the security code
Deletes downloaded/user created contents (e.g.: images, videos) from Handset content
and the External Memory card.
Handset Contents: Deletes all
downloaded/user created Images, Videos & Sounds from the Handset Memory.
Handset Personal Info.: Restores Personal Information stored in the handset memory (e.g.: address book, messages, tasks, alarm, Calendar schedules) to default values.
Memory Card: Deletes all contents from the External Memory Card.
You can use LG Mobile Support tool to repair some LG cell phone model, after download select menu Customer Support > Recovery Phone
If you know LG CU515 hard reset with buttons / keys pls leave comment.