In order to realize the special functions of two-way transmission and subsidiary ID on RC4GS and RC6GS, corresponding firmware needs to be flashed.
RC4GS Firmware for R7FG https://www.radiolink.com/rc4gs_firmware
With the firmware V6.0.1, RC4GS is capable of model battery voltage telemetry and subsidiary ID besides the dual mix control function. Note: Receiver R7FG or R8F is needed for these functions of telemetry and subsidiary ID.
RC6GS Latest firmware V6.1.2
https://www.radiolink.com/rc6gs_firmware
RC4GS/RC6GS Firmware Upgrade Guidance
1. Identify the suitable firmware
a. If your computer works with the system of WIN 7 or XP, please choose the firmware file with .bin at the end.
b. If your computer works with the system of WIN8 or WIN10, please choose the firmware file with .mac at the end to upgrade.
2.Download the corresponding firmware to your model from the below links
3.Connect your radio with the computer with a USB cable and your radio will appear as an extra disc on your computer
4.Click YES as the window pops out when connected to format your radio
5.Once done formatting, your radio(the extra disc) should be empty
6.Copy the latest firmware and past it in your radio(the extra disc)
7.Once finish Step 6, disconnect your radio from the computer and power it on
RadioLink Products Instruction Manual Download
