If it's brand new, I'd recommend telling your vendor / retailer that it is faulty and ask for a replacement. Or at least have an authorized service center repair it.
If by "red position led" you mean the bright navigation LED's above the feet, taking apart the leg / motor / antenna configuration looks pretty exacting, and probably voids the warranty. I'm definitely no expert, so it may be easier than it looks in the videos. Out of the box it should work perfectly and you should ask for a replacement.
If you REALLY want to try it yourself, you can search YouTube for "DJI Inspire Repair Videos", and find something which may show you what you need. I'd recommend replacement or professional repair, though.