Appendix D Software updating procedure
D-9
D.4.1 Start in Safe Mode
In this subsection, the way of starting JUE-501/JUE-251 in safe mode is described. Software
updating and factory resetting is available in safe mode.
1. Turn OFF the power supply of JUE-501/JUE-251.
2. Turn ON the power supply of JUE-501/JUE-251 with pressing the FN (function) button (right side
button of the Handset).
3. Leave your finger from FN button when Ready LED lamp of BDE lit in red.
* Nothing is displayed on Handset when the system has been booted in safe mode.
FN button
(Right side button)
READY LED
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