SD-670DE (SD-671DE/SD-674DE) Firmware Update Instructions You will need the SD-670DE Series Radio Programmer to complete the Firmware update.
SD-671DE Firmware
SD-671DE (VHF) FIRMWARE Version 1.0.1.9 (Updated 4/13/22) You will need the SD-670DE Series Radio Programmer to update the firmware. Instructions are included in Zip File
SD-674DE Firmware
SD-674DE (UHF) FIRMWARE Version 1.0.1.9 (Updated 4/13/22) You will need the SD-670DE Series Radio Programmer to update the firmware. Instructions are included in Zip File
SD-670D/DE Series User Manual
Last Updated 04/30/2021
SD-670D – ACC-670 (NW)
Narrow/Wideband Software (Version 2.0.1.1 – Released 4/6/2021) w/USB Drivers
SD-670D – ACC-670 (N)
Narrowband Only Software (Version 2.0.1.1 – Released 4/6/2021) w/USB Drivers
