Wii door will not open to allow a disc to be insereted.

Nintendo Wii Teardown

Use this guide to get to the problem spot, but you should buy a triwing screwdriver and a bucket first. You’ll see why you need a bucket as you’re taking the wii apart. If you don’t like this answer, you don’t need to ask this question. It’s all a matter of tampering with your disc drive so that it does what you need it to.