X551
WARNING! Audit mode is used only when the main PCA is replaced.
1. Press and hold the power button while plugging in the product. The HP logo appears on the
control panel, and then disappears. Continue to hold the power button for five seconds after the
logo disappears.
2. Release the power button.
3. Touch the Home
button.
4. Touch the Back
button
5. Touch the Home
button twice.
6. Touch the
button.
7. Press the power button.
NOTE: The product touchscreen is not active in this menu access mode. Use the and
buttons on the control panel frame.
16 Chapter 1 Removal and replacement ENWW
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