Note that there is a small "Programmer Switch" located behind a rubber cap or on the rear panel (depending on the specific sub-model) that must be toggled to the "ON" position before the software can write to the CPU. Where to Find the Software
Improved algorithms that more effectively suppress background noise without distorting the desired audio. Ft 2000 Upgrade Software
The most critical update for performance, improving noise reduction, filtering, and AGC (Automatic Gain Control) characteristics. Note that there is a small "Programmer Switch"
Always ensure your power supply is stable during the flash process. A power failure while writing the Main CPU or DSP firmware can "brick" the radio, requiring a factory repair. Always ensure your power supply is stable during
The most reliable source is the Yaesu Amateur Radio Products page. Navigate to the FT-2000 "Files" tab.
Significant tweaks to the EDSP to reduce "ringing" in narrow CW filters and improve the signal-to-noise ratio.