iNNEXT N64 Classic Controller Buttons Unresponsive

Prior to use, clean the area around the button. Most common ways of cleaning buttons include pressurized air dusters, dampening a cloth/cotton round with rubbing alcohol and wipe affected area until stickiness has been removed, using a small brush, for example a toothbrush, to swipe away debris, and for small visible particles causing button immobility, use a small pin or toothpick to gently remove particle. Using a Q-Tip soaked in alcohol is effective for more precise cleaning.

You will need to take off the casing of the controller with a screwdriver, clean out the controller, the best way to do this is with wipes. When this is done all, you need to do is put the controller back together. If needed the button can be replaced using the guides found bellow.

Here is a guide for removing the buttons

Here is another guide for removing the D-Pad

Here is another guide for removing the shoulder buttons