Attention: If you can not download the files or zip file below, please click the website below to download the files you need.  

http://www.radiolink.com.cn/firmware/transmitter/T8S(BT)/

1. Firmware Upgrade Tool

Click to download the firmware upgrade Driver, only applicable to computers.

Note:

Please install the driver when using the computer parameter set APP for the first time.For the T8FB/T8S upgrade driver installation tutorial, please click the article below to view it.

If the computer is Windows 7, 8, or XP system: https://www.radiolink.com/newsinfo/457948.html?templateId=145718

If the computer is Windows 10 or 11 system: https://www.radiolink.com/newsinfo/475968.html?templateId=148964

WinZip(design by 360, free)

If you do not have the WinZip Tools to decompress upgrade files, please click to download and install the free WinZip Tool designed by 360.

2. Upgrade Firmwares

（1） The latest firmware

The firmware version can be checked on the parameter setup APP(SYSTEM menu) in mobile or computer(PARAMETER at the bottom right). If the wrong firmware is accidentally flashed and the system of T8S(BT) is crashed, please remove the cover and disconnect the battery and connect again. Then upgrade the firmware downloaded below.

① The current batches of T8S(BT): Long-press the power button for 1 second and release to turn it on.

If the wrong firmware is flashed and can't be powered on, or the LED indicators flash abnormally. Please download the V880 firmware to repair.

Click to download the latest firmware:

Attention:

① Add joystick dead zone; after upgrading, joysticks must be recalibrated; reboot after calibration is completed.

② Compatible with the parameters set up APP versions of Android mobile phone APP V10.0(or above), Apple mobile phone APP V4.2.2(or above), or computer APP V6.0.1(or above).

Introduction to V880

1. Reminder: This firmware includes many new functions. Please read the firmware instructions carefully before upgrading.

2. Upgrade: Trim Settings — added a trim switch that allows the trim function to be turned off via software.

3. Upgrade: Fixed-Wing Menu — merged “Attitude Selection,” “Elevator-Aileron Mixing,” and “V-Tail.”

4. Upgrade: Throttle Curve — added switch (SWA–SWC) and flight condition (COND) options, supporting up to four curves.

5. New: Pitch Curve — added switch (SWA–SWC) and flight condition (COND) options, supporting up to five curves.

6. Upgrade: Dual Rate Curve — added switch (SWA–SWC) and flight condition (COND) options, supporting up to five curves.

7. Upgrade: Dual Rate Curve — added three curves (UP, CENTER, DOWN) under the (SWA–SWC) switch mode.

8. New: Swashplate Ratio — must be selected if you wish to enable the Pitch Curve function.

9. New: Gyro Sensitivity — includes two modes: “Standard” and “Gyro.”

10. New: Flight Modes — in addition to Normal Mode, added “IDLE1,” “IDLE2,” “IDLE3,” and “HOLD.”

11. New: Throttle Settings — includes “Throttle Hold,” “Throttle Cut,” and “Throttle Idle.”

12. Change: Due to newly added functions, the data size has increased. When writing data through the app, seven “beep” sounds indicate that all data has been successfully written.

② The previous batches of T8S(BT): Slightly touch the power button to turn it on.

If the wrong firmware is flashed and can’t be powered on, or the LED indicators flash abnormally. Please download the V810 firmware to repair, and no other firmware can be flashed afterwards.

Click to download the firmware: T8SBL_LatestFirmware_V810(OldVersion1s).hex

(2) Firmware for turning off the Trim Function

Click to download the firmware for turning off the Trim Function:

Attention: After upgrading this firmware, the Aileron, Elevator, Throttle, and Rudder trim buttons' mechanical adjustment functions will be canceled. It is designed for remote controllers that control logistics, fire fighting, and short-distance unmanned delivery vehicles or drones.

(3) Factory Default Firmware

Click to download the factory default firmware:

Attention: please use the V603 parameter setup APP if the firmware version of your transmitter is V826

How to update the firmware of T8S?