Why won't my iPhone 4 connect to my wi-fi?

My phone was connecting and working perfectly. I moved rooms, and it stopped working. I deleted the information it had saved to log in automatically. I've now moved into all different rooms and the iPhone just won't connect. It's not the router. My mom's iPhone 4 is connecting, as is my laptop. I seriously have no idea what's going.
I've also restored my phone, turned it off and on, switched the wi-fi off and on, put the proxy on auto… Nothing is working

You need a new iphone. If you restored it and nothing has change that means that the problems is coming from inside the phone. Repairs will be costly so i recommend just getting a new iphone.

Here

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