How can i disable flight mode on my nokia lumia 635, it doesnt let me do it manually

[WPCentral Question]

.... the problem is that it is stuck on flight mode- airplane mode and doesn't recognize any type of cellphone reception whatsoever. I have already tried the soft reset, the hard reset and the situation is the same.... when I go to settings to turn off airplane mode it doesn't change, when tapping the slide bar it doesn't admit the change it instantly activates itself.