IAI America IA-T-XA (ANSI standard CE mark agreement) - Manual (Page 41)

Press the ESC key.
Return to the Edit screen.
Press the ESC key.
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.
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