In order to hard reset a doro 610, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
doro 610 device will be brought back to the default configuration of a brand new device.
1. Power up the phone by pressing the Power button.
2. Go to Menu and Settings.
3. Continue by selecting Reset > Master Reset > Yes.
4. Lastly, type in the 1234 safety code.
5. The hard reset process is now complete.