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9.3. Software downgrading procedure
If you have any problems caused by upgrading, you can downgrade the software.
A) Turn OFF the power supply of JUE-250.
B) Quit [JUE-250 Upgrader], if it is still activating.
C) Turn ON the power supply of JUE-250 with pressing the right side button of the Handset.
D) Leave your finger from PTT button when Ready LED of main unit starts to blink.
E)
Confirm the Handset screen transition, it displays [Initialize] and [Safe Mode].
Initialize
F)
Repeat from the 2nd procedure of [3 . Update JUE-250 software]. Use [JUE-250_1xxx.exe] in
CD-ROM of JUE-250 to execute, instead of the downloaded file [JUE-250_1xxx.exe].
Appendix C JUE-250 software updating procedure
Right side button
Safe Mode
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Right side button
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