diff --git a/README.md b/README.md
index 7fa1670..5c7d419 100644
--- a/README.md
+++ b/README.md
@@ -407,9 +407,6 @@ follows:
 # Troubleshooting
 
 ## `64 Bit Systems`
-Please note there is currently an issue when compiling with a 64 Bit OS. See
-https://github.com/RPi-Distro/pi-gen/issues/271
-
 A 64 bit image can be generated from the `arm64` branch in this repository. Just
 replace the command from [this section](#getting-started-with-building-your-images)
 by the one below, and follow the rest of the documentation:
diff --git a/stage2/02-net-tweaks/01-run.sh b/stage2/02-net-tweaks/01-run.sh
index 4aa8148..d719c79 100755
--- a/stage2/02-net-tweaks/01-run.sh
+++ b/stage2/02-net-tweaks/01-run.sh
@@ -1,22 +1,24 @@
 #!/bin/bash -e
 
-install -v -d					"${ROOTFS_DIR}/etc/wpa_supplicant"
-install -v -m 600 files/wpa_supplicant.conf	"${ROOTFS_DIR}/etc/wpa_supplicant/"
+# Newer versions of raspberrypi-sys-mods set rfkill.default_state=0 to prevent
+# radiating on 5GHz bands until the WLAN regulatory domain is set.
+# Unfortunately, this also blocks bluetooth, so we whitelist the known
+# on-board BT adapters here.
+
+mkdir -p "${ROOTFS_DIR}/var/lib/systemd/rfkill/"
+#           5                 miniuart 4      miniuart Zero   miniuart other  other
+for addr in 107d50c000.serial 3f215040.serial 20215040.serial fe215040.serial soc; do
+	echo 1 > "${ROOTFS_DIR}/var/lib/systemd/rfkill/platform-${addr}:bluetooth"
+done
 
 if [ -v WPA_COUNTRY ]; then
 	on_chroot <<- EOF
 		SUDO_USER="${FIRST_USER_NAME}" raspi-config nonint do_wifi_country "${WPA_COUNTRY}"
 	EOF
-fi
-
-# Disable wifi on 5GHz models if WPA_COUNTRY is not set
-mkdir -p "${ROOTFS_DIR}/var/lib/systemd/rfkill/"
-if [ -n "$WPA_COUNTRY" ]; then
-    echo 0 > "${ROOTFS_DIR}/var/lib/systemd/rfkill/platform-3f300000.mmcnr:wlan"
-    echo 0 > "${ROOTFS_DIR}/var/lib/systemd/rfkill/platform-fe300000.mmcnr:wlan"
-    echo 0 > "${ROOTFS_DIR}/var/lib/systemd/rfkill/platform-1001100000.mmc:wlan"
-else
-    echo 1 > "${ROOTFS_DIR}/var/lib/systemd/rfkill/platform-3f300000.mmcnr:wlan"
-    echo 1 > "${ROOTFS_DIR}/var/lib/systemd/rfkill/platform-fe300000.mmcnr:wlan"
-    echo 1 > "${ROOTFS_DIR}/var/lib/systemd/rfkill/platform-1001100000.mmc:wlan"
+elif [ -d "${ROOTFS_DIR}/var/lib/NetworkManager" ]; then
+	# NetworkManager unblocks all WLAN devices by default. Prevent that:
+	cat > "${ROOTFS_DIR}/var/lib/NetworkManager/NetworkManager.state" <<- EOF
+		[main]
+		WirelessEnabled=false
+	EOF
 fi
diff --git a/stage2/02-net-tweaks/files/wpa_supplicant.conf b/stage2/02-net-tweaks/files/wpa_supplicant.conf
deleted file mode 100644
index 0fc335e..0000000
--- a/stage2/02-net-tweaks/files/wpa_supplicant.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
-update_config=1