NOTICE 



ATTENTION !  This firmware is applicable ONLY for the following Version 1 hardware.

Models (Types)	Applicable Serial Numbers
NX-740H  (K)	S/NO.B55xxxxx or before.
NX-740HV (K)	

NX-840H  (K,K2)	S/NO.B55xxxxx or before.
NX-840HU (K)	


This Firmware Updater runs on Windows XP, Windows Vista, Windows 7, Windows 8 or or Windows 8.1 operating system.

NOTE -
Windows XP USERS - .NET Framework 3.5 (or later) must be installed to run this firmware updater.
.NET Framework can be downloaded from Microsoft download center.

To check if the .NET Framework 3.5 (or later) is installed in your Windows XP :
- Open the Control Panel and select Add/ Remove Programs, 
- Scroll through the list of applications and look for "Microsoft .NET Framework 3.5" (or later)
- If "Microsoft .NET Framework 3.5" (or later) appears in the applications there is no need to install it. 
 


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There is no need to put the NX-740 / NX-840 into firmware programming mode to overwrite firmware using the 
Firmware Updater. Simply turn on the NX-740 / NX-840 and execute the programmer. 
It may take 1 minute to update firmware.  While writing firmware DO NOT OPERATE THE TARGET RADIO 
- DO NOT PRESS PTT
- DO NOT TURN THE KNOBS OR PRESS ANY KEYS

Operating the radio may cause fatal corruption to the firmware programming area and also the MPU boot area. 
If fatal corruption occurs, please send the radio to your closest Kenwood Authorized Repair Facility. 

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