4s wifi question

[hawwy]

I have a 4s with rubbish wifi only work when right next to router what part do i need to replace

 

[Cx38]

Wifi antenna cable.

 

[cynics]

Have you ever had your iPhone open before? Its easy to assemble it poorly can get bad reception.

 

[Cx38]

True. I messed up the first iPhone I took apart, although always been more careful and had no problems since. I was too confident the first time.

 

[Agent-P]

Does it do this for all wifi networks or just the one where you live? It could potentially be a problem with your router. Do any of your other devices have issues connecting to your home network?

 

[hawwy]

Looks like it has been open before but not by me.
And it does same with all routers sometimes it doesnt even detect

 

[Cx38]

Looks like it has been open before but not by me.
And it does same with all routers sometimes it doesnt even detect

If its been opened before it sounds like someone didn't take enough care and damaged the wifi antenna. They're relatively cheap to get hold of so try that if that doesn't help then they've damaged the connection