Chosen Solution

What needs to be replaced on my GoPro Hero 3+ silver edition?

@edubba123 there is no standard part that needs to be replaced. It will depend on your boards to see what has failed. Use these guides to work on your GoPro and take plenty of images. Post those with your question so we can see what you see. Use this guide for that. One of the parts you definitely will have to change is the battery.