There is a few ways to determine what box you have ..
the cardboard box it came in will tell you if you exactly what version you have if you still have it if not then ..
IF You look on the Front Flap on the front of your box bottom left side where the card reader and CAM Slot is you will see written on that flap Technomate TM5402 M1/M2/M3 HD ??
Thats really the quickest and easiest way to find out
but if your on-screen menu looks like this then you have TM5402 M1 Or M2 =>
The TM5402 M3 HD Has a totally different on-screen display .
And ..Yes you will need to patch your box for certain im afraid to see encrypted channels of any description .
so IF you have TM5402 m1 or m2 HD ?
IF So then i strongly advise you to follow
this link Here =>
http://www.sat-universe.com/showpost.php?p=1151991&postcount=23
Unless your box is infact a TM5402 M3 HD the newest 5402 HD model ?
in which case you'll need a different patch which is Here =>
http://www.sat-universe.com/showpost.php?p=1153606&postcount=24
post back in this thread with any further questions i have both TM5402 M2 and TM5402 M3 myself there is not a massive difference apart from M3 has different on screen display and has IPTV streaming function and 100 Biss key lines .
good luck : )
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Barney2222