Charging port

[Samjack]

Briefly submerged my phone in water to take a video of some fish which your official site states the phone is capable of doing with an ip rating of 68.  When I came back to my accommodation a good few hours later and tried charging it my cable end started heating up and there was a burning smell. Now when I connect my phone it doesn't charge but instead sizzle. Suggestions? 

[Qatrium]

@Samjack

Looks like you didn't read well. The water and dust protection page has a lot of details about the capabilities and limits of your phone:

First of all, Your device indeed has an IP rating. This means that under a strictly controlled laboratory environment, the hardware works as designed even after being exposed to specific conditions. These conditions don't include using buttons or recording videos.

Moreover, there is a clear statement there: Remember not to use the device underwater. If you accidentally get the device wet with non-fresh water, wash the device with tap water.

After exposing your phone to water, it’s important that the USB port is completely dry before a USB cable is inserted into it. To remove moisture from the USB port, shake your device several times with the USB port facing downwards and then use a micro-fibre cloth to wipe your device dry. Repeat the procedure until no moisture is visible in the USB port.

I think the last part is what caused the damage, leave your phone in a well-ventilated area for a few hours before you try to charge it again. If it still fails to charge then you'll have to contact your Local support and get your phone examined.