Koobee S509

Hard reset Koobee S509 Option 1

1. Go to Settings

2. Click on the menu About Phone

3. Next item Storage

4. Then click on Factory data reset

5. Mark opposite Factory Reset and Format disk

6. Click on Start cleaning

7. Reset will complete after Koobee S509 restart.

Hard reset Koobee S509 Option 2

1. Need to turn off the smartphone Koobee S509

2. Press Volume Up + Turn on for a few seconds

3. Stop pressing the buttons when we see the brand logo on the display

4. Click Clear Data

5. Click on Start

6. The reset process will end after Koobee S509 restart.


To fully perform a complete reset of Koobee S509, a battery charge of about 80% is required.

When the reset is completed, all personal applications and data installed in the memory Koobee S509 will be erased.