01.Props-Out
WREKD always installs propellers Props-Out. The raised leading edge of each blade points outward, away from the center. This is how your quad is tuned — running Props-In will fly poorly.
PROPS-OUT
02.Bind Your ExpressLRS Radio
Your quad ships with a RadioMaster RP1 receiver running ExpressLRS 3.5.x. Modern ELRS uses a power-cycle bind — no buttons to press.
Plug the battery in just far enough to make the drone beep / power up, then unplug. Do this three quick times. On the 3rd insertion, leave it plugged all the way in.
The ELRS RX in the back of the drone should now blink in a double-pulse pattern (two blinks, pause, two blinks…). That means it's in bind mode.
Usually: press the SYS button → select ExpressLRS.
You should hear your radio announce "Telemetry recovered." Your quad is now bound.
LED Indicator Reference
- Model Match is on with the wrong Model ID — check your radio model settings.
- Your radio / module ELRS version doesn't match the receiver. This quad ships with ELRS 3.5.x — stick close to that version.
03.Flash ELRS Over Wi-Fi
Only do this if your radio/module is on a different ELRS version. Wi-Fi flash is the cleanest path — no USB needed.
1. Get a firmware.bin
Use either:
- ExpressLRS Configurator — build a custom
firmware.binfor the RadioMaster RP1 2.4GHz target. - Direct download — grab a pre-built
firmware.binfor that version from a trusted source.
2. Wi-Fi Flash Procedure
The Hobbywing FC needs battery power to keep the RX alive — USB alone is not enough. After ~1 minute with no radio link, the RX drops into Wi-Fi mode: the red LED begins flashing extremely fast and continuously.
On your phone or laptop, join the SSID that starts with ExpressLRS. Default password is usually expresslrs.
Most devices pop it up automatically. If not, browse to http://10.0.0.1/.
Wait for upload + reboot. Repeat the bind procedure from Step 02.
04.Bind DJI O4 Pro Air Unit
Your quad uses the DJI O4 Pro Air Unit. You'll need to bind it to your DJI Goggles (Goggles 3, Goggles 2, Integra, etc.) before you can see video.
Hold the goggles' Power button for about 5 seconds until you hear continuous beeping. The goggles are now searching for an air unit.
Give the air unit a few seconds to boot.
It's a tiny recessed button on the air unit board — use a pin or straightened paperclip to gently press it. Do not force it.
Once you hear it, video should appear and binding is complete.
Your quad uses a Walksnail Avatar HD Pro VTX. Bind to your Walksnail goggles before flying.
Enter bind mode from the goggles menu.
Plug in a battery and watch the air unit boot.
Small button on the side. Hold ~3 seconds until LED changes pattern.
Video should appear with low latency.
Your quad uses an HDZero digital VTX. No binding needed — just match channels.
Default to channel R1.
VTX channel/band shown in OSD. Match goggles to the same channel.
Sharp HD image on the matched channel.
Your quad uses an Analog VTX (Caddx Ratel or similar). Pair by channel.
Most goggles auto-scan with one button press.
Goggles should find the VTX channel automatically.
You'll see static-y SD video — that's normal.
05.Pre-Flight Checklist
Run through this every time before powering on for flight.