In order to hard reset a Motorola A835, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Motorola A835 device will be brought back to the default configuration of a brand new device.
1. Switch on the phone.
2. Enter Menu and go to Setup and Master Reset.
3. Lastly, confirm the hard reset process. Voila, done.