Tinyhawk III Plus
Steady green light: Charging complete Note: Use a 5V-1A adapter and
Type-C cable for charging. When the voltage is low (3.7V), an alert will
sound, indicating the need for timely charging.
1. 4E8 Transmitter (ELRS) Serial Upgrade Tool
Instructions
1. Firmware Update and Upgrade (Version 4.1)
To initiate the firmware update, follow these steps:
1. Press and hold the R4+ button, then press and hold the power button. A
beep will sound, the mode indicator light will flash green, and the central
indicator light will stay solid green. This indicates that the transmitter has
entered serial flashing mode.
2. Connect the transmitter to your computer using a Type-C data cable.
3. Open the EMAX Serial Upgrade Tool on your computer.
4. Perform the following steps within the upgrade tool: (a) Identify and
select the appropriate serial port. (b) Click on "Open Port." (c) Click on
"Select File" to choose the firmware file you want to update. (d) Click on
"Update File."
5. Wait for a few seconds. When the transmission progress reaches 100%,
the transmitter will shut down automatically, indicating that the firmware
upgrade has been successful.
Note: If the serial port is not detected, you can try the following:
Change the data cable.
Repeat steps (a) and (b).
Click on the "Refresh Port" option.
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