In order to hard reset a Eken H88, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Eken H88 device will be brought back to the default configuration of a brand new device.
1. Turn off the phone by pressing and holding Power.
2. Open Settings and Backup & Reset.
3. Continue to Factory Data Reset, Reset device and Erase everything.
4. Hurray, the hard reset is now complete.