ExpressLRS Radio link firmware firmware
current- Latest firmware
- 4.1.0
- Released
- Jul 17, 2026
- Category
- Makers & open firmware
- Last checked
- Sep 14, 2026
How to update the ExpressLRS Radio link firmware
- Read the release notes first — firmware changes can require re-doing your config or calibration.
- Use the project's own installer where it has one: a web flasher over USB, or an over-the-air update in its web UI.
- Otherwise build or download the binary for your exact board from the releases page — the wrong board file will not boot.
- Keep the previous firmware image and your config backed up so you can roll back.
Always download firmware from the manufacturer or project itself. Firmwarely links out; it never hosts firmware.
What changed
## Compatibility Compatible with all hardware running any ExpressLRS 4.x version ## Highlights ### Dynamic Power Goes Down #3577 The statistical dynamic power algorithm introduced in 4.0 had a tendency to keep the power level high once it raised it, this change allows it to be a little less cautio…
Version history
| 4.1.0 | Jul 17, 2026 |
FAQ
How do I update the ExpressLRS Radio link firmware?
See the step-by-step above. Follow the project's release page for the flashing or OTA procedure. Many maker devices update from a web installer or the project's desktop app.
How does Firmwarely know when there's a new version?
Every night we read the manufacturer's official release page for the ExpressLRS Radio link firmware and record the version, date and changelog. If anything changed, subscribers watching this device get an email.
Is this an official ExpressLRS page?
No. Firmwarely is independent. Device and brand names belong to their manufacturers; always download firmware from the official source.
Get alerts for ExpressLRS Radio link firmware
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