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|Android based Phones / Tablets For all of your questions relating to the android mobile phones.|
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Join Date: Jan 2013
Location: VIET NAM
Thanks Meter: 41
Factory Reset KM-S120 with USB port
Step 1: You need to download the Tech Upgrade Manager. Download here
KT Tech - 404
Step 2: Install the Driver of the S200 to your computer.
Step 3: Install Tech Upgrade Manager on the computer.
Step 4: Remove the battery. Insert the battery. Then hold down the Volume UP + Power key about 5s.
Step 5: Connect the USB cable to the phone to the computer. Open Device Manager on the computer to make sure your phone is connected!
Step 6: Run the the Tech Upgrade Manager program to your computer automatically detects your phone line and then install the original firmware of the manufacturer. After the installation process is complete. Turn it off.
Step 7: Open the Command Dos screen (Windows key + R to win7)
Step 8: Declare the path to the installation directory Tech Upgrade Manager. For example: C: \ Program Files \ KT Tech \ Tech Upgrade Manager.
Step 9: Type the command fastboot erase userdata. Then wait about 1 minute, will be notified finished. total time: ... s.
That is completed. You just unplug the cable, remove the battery, insert the battery it back and reboot your machine was able to return to normal operation status as new from the manufacturer.
I wish you success!
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