My iphone 4s is not connecting to wifi and bluetooth is trying to connect since 2 days ago

not sure why my iphone 4s is not connecting to my wifi and it is dimmed out so I can't use it. Bluetooth has been trying to connect to something and won't allow me to go back. Any advice?

This most likely is a hardware failure that requires replacement, but try the suggestions in the following support article first:
iOS: Wi-Fi or Bluetooth settings grayed out or dim
Beware of "fixes" involving freezers and hairdryers (cold and heat), which are at best temporary and likely to cause additional damage to the phone

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