In this tutorial, i will teach you how to block bluetooth of Java Nokia s40 phones. First of all, switch your bluetooth on. Now return to standby mode and dial *#9990# and that's all. The phone's bluetooth can never be switch off again. If you try switching the bluetooth off, it will fail. But there is a way out. Just dial *#9990# again and turn you phone off. Turn it on again. Now, go to your bluetooth settings and switch off the bluetooth and it will be switched off!
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