As suggested by Will, you can try to take the volume button out to see if it will fix. However, if this does not work, you may have to replace the button. Luckily for you, Apple has created a software where you can tell your phone to do things, without touching any physical buttons. This is called Assistive Touch, which you can easily enable in your settings app. Here are some way to get to assistive touch. Go to Settings > General > Accessibility > AssistiveTouch, then turn on AssistiveTouch. Tell Siri “Turn on AssistiveTouch.” Go to Settings > General > Accessibility > Accessibility Shortcut and turn on AssistiveTouch. Once you have turned on assistive touch, you should see a small black square with a white circle in the middle. You can move this to any side of your screen and one tap on this button will open up many different options that you can ask your iPhone to do. The volume up button that you are looking for is in the "device" icon. The volume up and down buttons are located in here, which you can...
The most likely cause in this incidence is that the phone is dead. This happens when apps may be too power consuming or the phone does not have a powerful enough cpu to run the app. This makes the phone overheat and as a result fry the motherboard, leaving it unusable. No matter what you do (changing the battery, using different chargers) the phone will not turn on. Unfortunately for your case you will have to buy a new phone. Hope this made it a bit clearer, Nathan
Fixing your wifi connection should be easy. As long as you have not damaged your wifi network adapter, you should be able to many different websites which give you tutorials on how to fix your wifi. Here are some good tutorials that I found which could be useful for you: https://support.microsoft.com/en-au/help/825826/how-to-troubleshoot-missing-network-connections-icons-in-windows-serve https://www.pcworld.com/article/260524/n...-to-fix-your-wi-fi-network-7-tips.html Let me know if this helps, Nathan
I would suggest selling the parts on eBay or keeping the parts in case one of your phones break. Right now that iPhone 6s Plus cannot be classified as a phone; and I would imagine that it would be a pain in the butt to use. This is my own opinion, there may be others who think that this iPhone can still be revived, but if I were you, I would definitely take out the parts. Nathan