Flash 5Ghost firmware on the PINGEQUA BW16 (RTL8720DN)
Install the 5Ghost dual-band (2.4 / 5 GHz) WiFi research firmware on your PINGEQUA BW16 (RTL8720DN) board directly from this page. You need Chrome or Edge on a desktop computer and a USB-C data cable.
Firmware is hosted and the browser flasher is live. (Most 5Ghost BW16 boards also ship preloaded and plug straight into the Flipper GPIO header — no flashing needed.)
How do I flash the BW16?
Connect the board over USB, click Connect, then Flash. The flasher first tries to enter download mode automatically (DTR/RTS). If that fails, hold the BOOT button, tap RESET, release BOOT, and click Connect again.
Which browsers can flash the BW16?
| Browser | Supported |
|---|---|
| Chrome / Edge (desktop) | ✅ Yes |
| Chrome (Android) | ✅ Yes |
| Safari (macOS / iOS) | ❌ No |
| Firefox | ❌ No |
Browser flashing relies on the Web Serial API, available only in Chromium-based browsers.
Troubleshooting
| Symptom | Fix |
|---|---|
| Stuck at "entering bootloader" | Hold BOOT, tap RESET, release BOOT, then click Connect again. |
| No port in the picker | Use a USB-C data cable; install the CH340 serial driver if your OS needs it. |
| Flashing is slow | The BW16 flashes at 115200 baud, so a full image takes a few minutes. |
About 5Ghost
5Ghost is PINGEQUA's dual-band WiFi research firmware for the BW16 / RTL8720DN, intended for educational and authorized network-research use. The browser flashing protocol is PINGEQUA's own implementation of the public Realtek AmebaD ROM bootloader protocol.
Frequently asked questions
What is the 5Ghost BW16 devboard?
A dual-band (2.4 GHz / 5 GHz) WiFi research devboard built on the Realtek RTL8720DN (BW16) that connects to the Flipper Zero GPIO header. It runs the 5Ghost firmware.
How does it enter download mode?
The flasher attempts to put the BW16 into download mode automatically. If it does not enter, replug the USB cable and retry; on a bare module, hold BOOT while connecting.
Which browsers can flash the BW16?
Chrome or Edge on desktop (and Chrome on Android). Flashing uses the Web Serial API, which Safari and Firefox do not support.
WARNING
For educational and lawful network-research purposes only. Comply with all applicable laws in your jurisdiction.