My Tatasky remote was not working properly so, I tried to open it and find it really difficult in compare to other TV DVD remotes, so I searched for the articles and help for this online. I gone through some online tips and tricks and finally Opened tat monster remote.
here is the step by step instruction with Images how to Open Sky Remote.
1. remove battery cover and remove first screw.
2. Dont start Opening the Remote now, there is one more hidden screw behind the laser lens compartment.
Use the hairdryer to get the plastic case as warm as possible. This makes it more flexible. Now twist it in your hands and see where the split line is. You should be able to insert a small penknife blade and gently lift the plastic shell away from the clips. Work carefully around the perimeter with the blade. The battery compartment is often the weakest point if the moulding is very narrow at the corners. Take extra care here or you will break it!
3. Once the two shells are apart you can see the printed circuit board which contains the components. There are copper tracks insulated with green epoxy resin and, either conductive black resin contacts, or gold-plated contacts. Against the contact side of the board is the silicone rubber keypad moulding. The tips of the buttons contain conductive powder which is designed to connect the board contact pairs together electrically when pressed into contact.
here is some other article links