Panasonic UF-890 Service Manual page 212

5.1.9.3 Recovering From a Firmware Update Failure
If the Firmware Update is interrupted before completion, the machine will not be able to progress into the
Standby Mode and the LCD display will remain Blank. If this happens, please follow the steps described
below to recover from a failed firmware update.
(1)
(2)
(3)
(4)
(5)
(6)
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(1) Turn the Power Switch "OFF".
(2) Open the Control Panel Unit.
(3) 1 Screw (B1).
(4) Remove the Memory Card Cover (115).
(5) Insert the Flash Memory Card with the Firmware
Code programmed into the card.
(6) Activate the Read Point Sensor with your finger
and turn the Power Switch "ON".
(7) Wait approximately 10 seconds, release the
Read Point Sensor and close the Control Panel
Unit (ADF).
(8) Allow the unit to complete the Firmware Update
(approx. 1-minute). When completed, the unit
will reboot and progress to the Standby Mode.