Mate, your doing it the hard way. Get the calculator from windows (programs, Accessories) set it to scientific, on the left, tick the Bin circle, then tap in box key 1 (your first reading)
e.g.... 11010001 11110001 11101111 01011001 and then tick the hex circle..... which will give you this....D1F1EF59...
Then clear the screen, set it back to Bin, tap in box key 2, convert to hex and this is the second part of your BK, then, hey presto there you have it.
With both readings (1&2) you read them both left to right, NOT BACKWARDS
Depending on which led simm you have, with the switch set to the middle, this will give you your ird, if you have this type of simm, you could read the ird from the simm, then compare it with eng menu or scart, just so that you know that you are doing it corect...
Hope this helps
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I mentioned above above about reading the left to right, i have since found out that this is the new type simm and should be read right to left as mentioned earlier in this thread.
I do apologize peeps