In order to hard reset a Fujitsu Arrows M305/KA4, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Fujitsu Arrows M305/KA4 device will be brought back to the default configuration of a brand new device.
1. Press-hold Power to turn off the phone.
2. Next, press-hold Volume Up + Power buttons for 10 seconds.
3. Wait for the Android logo to appear and press Power.
4. Select the wipe data/factory reset option: navigate to it with Volume and select with Power buttons.
5. Complete the process by selecting Yes - delete all user data and reboot system now.
6. You have completed the hard reset process.