Use TeraTerm and “blue USB Serial adaptor”

Set TerraTerm to 115200 8n1 and the appropriate COM port

Plug to Main unit COM port

1. Hold SPACE and power-on G90
2. Choose “1. Update F/W”
3. After “Erase” select F/W file to send in TerraTerm via “File → Transfer → XMODEM → Send
   1. check the “1k” box
   2. Power off Radio after transfer completes
4. Move to Front Panel COM port
5. Hold SPACE and power-on G90 again
6. repeat process to upgrade front panel
7. Once complete depower radio.
8. Wait 5 seconds (remove COM connection)
9. Repower.

Page created Wed May 25 00:00:02 2022 by John Pumford-Green

Page last updated: 06/03/25 06:49 GMT