How to hard reset Samsung C3590 Done

Before you buy a new cell phone or new tablet, please try the following procedure to repair your device. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place.

Samsung C3590 hard reset

Use this method to hard reset your Samsung GT-C3590 / C3595 / C3592 phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.
When disposing of your device, back up all data and then reset your phone.

or
Go to Menu - Settings - Reset
This will reset the device.