VeriFone MX800 Series Installation Manual page 7

2. Using a narrow tool such as a paperclip press the
button in the hole to reset the device, it may take
a minute or so.
3. After some time with the device configuring you
should see a screen (pictured left) asking for a
password.
Default password: 166831
Note: If the above password does not work then you
can also try: 166832
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