browser tools / installation

Install SourceTX over USB.

Use this PC tool to install SourceTX on a new transmitter or recover one over USB. Existing transmitters can update from their built-in update screen.

REQUIREDPC with Chrome or Edge

Open this page over HTTPS.

TARGETSupported SourceTX transmitter

The tool checks the board before writing.

CABLEUSB data cable

Charge-only cables will not work.

NEW BOARDBOOT → RESET → release

For a blank board, hold BOOT, tap RESET, then release BOOT.

USB installer

Install firmware

Keep the transmitter connected during the write and reboot. Android users should use Android Companion.

SourceTX / USB

Connect your transmitter.

Checking browser support…

The installer checks the connected board before it writes anything.

NEW OR RECOVERINGINSTALL

Install SourceTX

Use this for a new transmitter or USB recovery.

Erase all flash firstDeletes models, calibration, settings, and update state.

ALREADY RUNNINGUPDATE

Update an existing transmitter

Open Settings → System → Firmware Update on the transmitter and follow its instructions.

Use a companion app

Ready. Use Chrome or Edge over HTTPS, then connect a USB data cable.

[READY] Browser tool is idle.

CLI equivalent / detailed recovery

The browser tool uses the same release contract as the companion apps. Download the signed factory artifact from SourceTX Releases, verify its checksum and signature, and confirm the connected board is the official 4 MB ESP32-S3 target before writing it.

# Factory image — first installation or USB recovery
python -m esptool --chip esp32s3 --port PORT --baud 460800 write-flash --flash-mode dio --flash-freq 80m --flash-size 4MB 0x0000 SourceTX-vX.Y-factory.bin

Do not flash an application-only image at a fixed OTA offset. Normal updates belong in SourceTX’s built-in Firmware Update screen so it can select and verify the inactive slot transactionally.