Iphones 4s not receiving Wi-Fi signal?

HI, i have a iphone 4s which is unable to receive a Wi-Fi network signal. I have tried all the resets, and they did not work. The phone is out of warranty so i was able to replace the Wi-Fi flex cable, and the Wi-Fi receiver module, but still no signal. Has anyone resolved this problem before?

Added (1). Edit: It is not able to find any network. My home network works fine on everything else, including my other iphone 4s. The Wi-Fi toggle in the settings menu is *greyed out*, and unable to be toggled to on or off.

Is it your home Wi-Fi, or anyone's Wi-Fi? It could be your Wi-Fi doesn't let the iPhone connect, instead of the other way around.

If your Wi-Fi is greyed out the only thing left to do is to do a back up in itunes and restore as new device. If it is still greyed out it is a hardware issue and will need to be replaced. Make sure you do a back up first to save your stuff.

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