New Petrel doesn't work with Mac?

[OMANDIVER]

From the main screen on the Petrel-

• Press left button 5 times to get to System set- up
• Press right button once to select
• Press left button 5 times to get to the screen you need- the "unlock" is 1/2 way down
• Press right button once to edit
• Press left button to get to unlock line
• Press right button to get a row of 0's to appear- Looks like 0000000000000000000000 or so
• Use the left button to scroll through digits 0-9 & keep going to get through the alphabet (A- G I think)
• Once you reach the digit or letter you want, press the right button to move to the next digit/ letter & at the end to save the code.

many thanks