Flash Bitaxe & Nerdaxe firmware – right in your browser
Pick your device, pick the firmware, plug in the USB-C cable – done. The flasher installs the latest AxeOS firmware on Bitaxe, Nerdaxe, NerdQaxe, NerdQX and NerdOctaxe, optionally also the optimized OSM-OS builds. No Python, no command line, no hunting for the right file.
- Always the current GitHub releases
- Configuration survives on request
- Runs entirely in the browser
- Open-source firmware, auditable
1Choose device and firmware
2Flash
Different board? Manual firmware selection (all variants, both channels)
The manual list always writes the full factory image. Use it only if you know your board for sure – a wrong image leaves the miner unusable until it is re-flashed.
How to flash your miner – step by step
- Connect the USB cable. Connect the miner via USB-C directly to your computer (no USB hub). A charge-only cable is not enough – it has to carry data. The miner can keep running normally.
- Pick your device and click “Install firmware”. The browser asks for the serial port – depending on the board it is called
USB JTAG/serial,CP210xorCH340. Select it, confirm, the rest runs automatically. - Wait 30 seconds. After writing, the miner reboots. With “keep configuration” it simply continues hashing; after a factory install you open its own WiFi (for example
Bitaxe_XXXX) and enter WiFi, pool and Bitcoin address again – as described in the Bitaxe setup guide.
Supported devices
| Device | Firmware identifier | Update without losing configuration |
|---|---|---|
| Bitaxe Gamma 601 / Copperzilla | factory-601 | yes |
| Bitaxe GT 801 | factory-801 | yes |
| Bitaxe Supra Hex 702 | factory-702 | yes |
| Nerdaxe Gamma 601 | NerdAxeGamma | yes |
| Nerdaxe Gaia | Gaia | firmware coming |
| NerdQaxe++ / Copper Pro / Hydro | NerdQAxe++ | yes |
| NerdQX | NerdQX | yes |
| NerdOctaxe / Hydro | NerdOCTAXE-Gamma | yes |
Frequently asked questions
Do I lose my settings when updating?
Not if “keep configuration” is ticked (the default). Then only firmware and web interface are written; WiFi, pool and Bitcoin address live in a separate storage area that stays untouched. Only the factory install resets everything.
What is the difference between “AxeOS original” and “OSM-OS”?
“AxeOS original” are the official releases of the open-source firmware projects – exactly what the devices ship with, and our recommendation. “OSM-OS” are community builds on the same codebase with tuned defaults. Both use the same partition layout, so you can switch between them any time.
Can I brick my miner?
Practically not permanently: the ESP32-S3 can always be re-flashed. The flasher additionally verifies before writing that the downloaded file is valid firmware and fits its partition. Just pick the right device – with the wrong firmware the miner will not start until the matching image is flashed.
Which browsers work?
Chrome, Edge and Opera on desktop (Web Serial API). Firefox and Safari cannot flash over serial – there you download the update files and upload them through the AxeOS web interface (System → Update). The AxeOS update guide walks through it.
My miner is not detected – what now?
Check the cable first (data cable, directly on the computer, no hub). If no port shows up, the USB driver of the serial bridge is usually missing (CP210x or CH340, depending on the board). On Windows install both, restart the browser. Still stuck: power-cycle the miner and reconnect.
Is this safe? Where does the firmware come from?
The firmware comes straight from the official GitHub releases of the projects – our server only passes it through and changes nothing. The flashing library (esptool-js) is self-hosted in a verified version instead of loaded from a CDN. All code involved is open source.
Do I have to flash before first use?
No. Every miner from Bitaxe.de ships with firmware installed. The flasher is for updates – or for getting back to a clean state after experiments.
How often should I update the firmware?
There is no obligation. An update makes sense when the release notes fix a bug that affects you or add a feature you need. If your miner runs stably, “never touch it” is a legitimate strategy – just check once or twice a year what has changed.
No miner yet?
Bitaxe, Nerdaxe, NerdQaxe and NerdOctaxe – tested, in stock, shipped from the EU.