diff --git a/dell/xps/13-9310/default.nix b/dell/xps/13-9310/default.nix
index 0f97550..874dd62 100644
--- a/dell/xps/13-9310/default.nix
+++ b/dell/xps/13-9310/default.nix
@@ -5,9 +5,18 @@
     ../../../common/pc/laptop
   ];
 
-  # Necessary for audio.
-  # https://bbs.archlinux.org/viewtopic.php?pid=1933548#p1933548
-  hardware.firmware = [ pkgs.sof-firmware ];
+  # TODO: upstream to NixOS/nixpkgs
+  nixpkgs.overlays = [(final: previous: {
+    qca6390-firmware = final.callPackage ./qca6390-firmware.nix {};
+  })];
+
+  hardware.firmware = lib.mkBefore [
+    # Necessary for audio.
+    # https://bbs.archlinux.org/viewtopic.php?pid=1933548#p1933548
+    pkgs.sof-firmware
+    # Firmware for the AX500 (wi-fi & bluetooth chip).
+    pkgs.qca6390-firmware
+  ];
 
   # Confirmed necessary to get audio working as of 2020-11-13:
   # https://bbs.archlinux.org/viewtopic.php?pid=1933643#p1933643
diff --git a/dell/xps/13-9310/qca6390-firmware.nix b/dell/xps/13-9310/qca6390-firmware.nix
new file mode 100644
index 0000000..521bf32
--- /dev/null
+++ b/dell/xps/13-9310/qca6390-firmware.nix
@@ -0,0 +1,32 @@
+# Based on instructions from kvalo at: http://lists.infradead.org/pipermail/ath11k/2020-November/000537.html
+# The xps/13-9360/qca6174-firmware.nix was a useful reference for how to setup this module.
+{ stdenv }:
+
+stdenv.mkDerivation rec {
+  name = "${target}-firmware-${version}";
+  version = "${branch}-00042";
+  branch = "master";
+  target = "QCA6390";
+  src = builtins.fetchGit {
+    url = "https://github.com/kvalo/ath11k-firmware.git";
+    ref = "master";
+    rev = "45a6c45a19799d3b06fc2287d5ba44e19ee0aa00";
+  };
+  buildCommand = ''
+    mkdir -p $out/lib/firmware/ath11k/${target}/hw2.0/
+    cp $src/QCA6390/hw2.0/1.0.1/WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1/*.bin $out/lib/firmware/ath11k/QCA6390/hw2.0/
+    cp $src/QCA6390/hw2.0/board-2.bin $out/lib/firmware/ath11k/QCA6390/hw2.0/
+  '';
+  meta = with stdenv.lib; {
+    description = ''
+      Firmware for the QCA6390 wireless chip.
+
+      This derivation is based on the instructions provided by kvalo in:
+      http://lists.infradead.org/pipermail/ath11k/2020-November/000537.html
+    '';
+    homepage = "https://github.com/kvalo/ath11k-firmware/tree/master/QCA6390/hw2.0";
+    license = licenses.unfreeRedistributable;
+    maintainers = with maintainers; [ mitchmindtree ];
+    platforms = platforms.linux;
+  };
+}