IAI America IA-T-XA (ANSI standard CE mark agreement) - Manual (Page 49)

Press the ESC key several times to move to the Flsh
screen.
When writing the data in flash ROM, press the F1
(OK) key.
When not writing the data in flash ROM, press the
F2 (Canc) key.
The message “Please wait…” flashes during flash
ROM writing.
* Never turn off the power to the controller during
this time.
Flash ROM writing is completed.
Return to the Edit screen with the ESC key.
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