I google searched this unit, searching for a procedure on how to hard reset it. I found a procedure but it fails. Below are the correct procedures on how to hard reset your CKK S10.
Before starting, let's take a look at its specifications.
Model S10
Color Purple
Display Size (in) 3.5
RAM (GB) 256
Capacity (GB) 512
Megapixels 2.0
Operating System Android 4.0 Ice Cream
source: lazada.com.ph
How To Hard Reset CKK S10
1. Press both Power Button and Volume Down Button for at least 10 seconds.
2. Un-press the buttons when you see the CKK logo.
3. Use Volume down button, select "wipe data / factory reset", then press Power button shortly to do the process.
4. Again use Volume down button, select "Yes -- delete all user data", then press power button shortly to do the process.
5. Finally, reboot the system.
6. Smile