What kind of screw driver do I need to open my dt* hr22 I am trying to upgrade the hard drive to a 1.5 tb inplace of the 500gb one that came in it??! Any help would be awesome

Box's I am testing
Nfussion HD
Nfussion SD
Captain 8000HD (I guess the HD is for True FTA)
Coolsat 7100
Coolsat 5000
Coolsat 4000

And many more to come!!


Note: I do not test, my info is for purpose of education and theory only. Any improper use of this info is the sole responsibility of the end user. Also I am not responsable for any mis use of your box nor will I take any responsibility for any damage that occurs to your box or anything!!