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NX5800 3.5mm custom keyload cable

TurboTony

Newbie
Joined
Feb 16, 2025
Messages
4
I am currently in the process of making a 3.5mm to RJ45 key loading cable. The photo below is a patch cable I cut the end off and followed the KFD tool GitHub for this pinout:

  • 8P8C Pin 1 - Hirose Pin 4
  • 8P8C Pin 2 - Hirose Pin 2
  • 8P8C Pin 5 - (Cathode) Schottky Diode (Anode) - Hirose Pin 2
  • 8P8C Pin 6 - Hirose Pin 4
pin 1 (orange and white) is soldered to pin 6 (green). Pin 5 (blue and white to cathode) has a Vishay SD103A-TAP diode which is then soldered to pin 2 (orange with anode).

The problem is the radio does not enter keyload mode in the cable’s current state. Any ideas? I’m pretty sure it should just enter keyload mode with this plugged in on power up. I do believe the diode is oriented correctly also. Pin 4 (no diode) is eventually going to be ground and pin 2 (with diode) is data.

IMG_4273.jpeg
 

tweiss3

Is it time for Coffee?
Premium Subscriber
Joined
Apr 24, 2020
Messages
1,307
Location
Ohio
Do you have the KWD-AE31K module, and is SCM board enabled in the current programming? You can keyooad via external device without both of those things. If you are loading DES (via DES 4 key option) or EE encryption, this are software loaded with KPD-D1, and the radio will not go into keyloading mode.
 

TurboTony

Newbie
Joined
Feb 16, 2025
Messages
4
Yes I have the AE31K installed but SCM is not enabled. Does that need to be enabled first, then it goes into keyload mode with the cable attached?
 
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