WiFi Interface missing

X Series X4
1

I have tried Ubuntu, Debian, and Windows 11. I have the wifi 6 variant and it used to work before.

I have the v004 Bios but I also tried downgrading it to no avail.

I also have searched for a fix but it looks like I am the only one facing this problem.

2

What information the device manager or lspci shows? If the device is not recognized at all, it may be a hardware problem.
In addition, is the Bluetooth function normal?

3

After many hours of running that command, dmesg, installing non-free source and drivers… no luck.

I’m afraid it might be a hardware issue. Which makes no sense; I was able to use it before. This little guy has been on Ethernet and when I tried utilizing wifi it didn’t work.

Tried Ubuntu live, nothing.

Windows, installing drivers, worked before in the past. Nothing now.

Device manager lists an unknown acpi device. I think it’s wifi module not powering up

4

I have a very similar problem on 5b+: Wifi/BT suddenly stopped working

For me it also looks like an hardware issue?

5

That’s unfortunate; I will look into my logs, I wonder if I have similar messages

6

Did you find such messages?

7

Hi all,

I want to document my findings in case this helps other users or Radxa engineering.

I am troubleshooting a Radxa X4 with the onboard AW-XM548NF Wi-Fi 6 / Bluetooth module. After extensive testing across multiple operating systems, the Wi-Fi module never enumerates at the hardware level.

Summary of symptoms:

  • Wi-Fi does not appear in BIOS

  • No WLAN or Bluetooth device appears in Windows, Debian, or Ubuntu Live

  • Windows shows an unknown ACPI device: ACPI\INTC1057

  • Driver Health / Device Manager shows a duplicate network entry where the first reports “not found” and the second (Intel I226-V Ethernet) is healthy

Ubuntu Live results (clean environment):

I booted Ubuntu Live to rule out OS and driver issues.

lspci -nn:

  • Only network device present is Intel Ethernet Controller I226-V (8086:125c)

  • No Network controller [0280]

  • No Realtek / RTL8852 device

  • PCIe root ports exist, but no device enumerates behind them

lsusb:

  • No Realtek Bluetooth device

  • Only root hubs, Logitech receiver, and USB flash drive

ip link:

  • Only lo and enp2s0 (wired Ethernet)

  • No wlan interfaces

dmesg:

  • No rtw, rtl, wlan, or PCIe link-training messages for a wireless device

  • ACPI loads power resources, but no downstream WLAN device ever appears

Interpretation:

  • AW-XM548NF is a PCIe (Wi-Fi) + USB (Bluetooth) combo module

  • Neither side enumerates on any OS

  • ACPI exposes what appears to be a WLAN power/reset resource (INTC1057), but asserting it never results in a PCIe or USB device appearing

  • This strongly suggests a board-level power or hardware failure (WLAN rail, enable signal, or the module itself)

What this is not:

  • Not a Linux driver issue

  • Not caused by installing Wi-Fi 5 vs Wi-Fi 6 drivers

  • Not OS-specific

  • Not recoverable via kernel, firmware blobs, or rfkill

Current status:
The board is likely out of warranty, so I am documenting this mainly for awareness. I plan to work around it using external Wi-Fi, but wanted to post full findings in case others encounter the same behavior or Radxa wants to investigate a potential manufacturing defect.

If Radxa engineers want logs or additional confirmation, I am happy to provide them.

Thanks.

8

The bluetooth function is not normal