Have you ever wonder how to find hidden functions in KARBONN A307? By using this tutorial you can unlock KARBONN Developer Settings. Check out how to enable developer options and use secret options of Android 4.4 KitKat.
Firstly open Menu.
Now select Settings icon.
In Settings we need go to About phone.
Hold option Build Number.
You are now a developer, back to Settings.
Enter Developer options.
Choose function OEM unlocking.
Well.
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