diff --git a/device/community/device-shift-axolotl/80-libssc-shift-axolotl.rules b/device/community/device-shift-axolotl/80-libssc-shift-axolotl.rules
new file mode 100644
index 0000000000000000000000000000000000000000..2ef77efb56a973d63c9150c9d3e6ce0d69a76c61
--- /dev/null
+++ b/device/community/device-shift-axolotl/80-libssc-shift-axolotl.rules
@@ -0,0 +1,4 @@
+# iio-sensor-proxy with libssc: accelerometer mount matrix
+
+SUBSYSTEM=="misc", KERNEL=="fastrpc-sdsp", ENV{ACCEL_MOUNT_MATRIX}+="-1, 0, 0; 0, -1, 0; 0, 0, -1"
+
diff --git a/device/community/device-shift-axolotl/APKBUILD b/device/community/device-shift-axolotl/APKBUILD
index 54ad0a212fa583e3e1f5bbe90534d65ce1f05254..91d5414151ec2dbb821b8b6aec1d0a1bc6f94bdd 100644
--- a/device/community/device-shift-axolotl/APKBUILD
+++ b/device/community/device-shift-axolotl/APKBUILD
@@ -4,8 +4,8 @@
 
 pkgname=device-shift-axolotl
 pkgdesc="SHIFT6mq"
-pkgver=8
-pkgrel=1
+pkgver=9
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"
@@ -26,6 +26,7 @@ source="
 	deviceinfo
 	phoc.ini
 	q6voiced.conf
+	80-libssc-shift-axolotl.rules
 "
 subpackages="
 	$pkgname-nonfree-firmware:nonfree_firmware
@@ -42,11 +43,12 @@ package() {
 
 nonfree_firmware() {
 	pkgdesc="Modem, GPU and WiFi Firmware, also needed for osk-sdl"
-	depends="firmware-shift-sdm845 firmware-shift-sdm845-initramfs
+	depends="firmware-shift-sdm845>=0.4 firmware-shift-sdm845-initramfs
 		 soc-qcom-sdm845-nonfree-firmware soc-qcom-sdm845-modem"
 	mkdir "$subpkgdir"
 
 	install -Dm644 q6voiced.conf "$subpkgdir"/etc/conf.d/q6voiced
+	install -Dm644 "$srcdir"/80-libssc-shift-axolotl.rules -t "$pkgdir"/usr/lib/udev/rules.d/
 }
 
 phosh() {
@@ -59,4 +61,5 @@ sha512sums="
 a3e9ae292631233480b0fa60d90a7c0940162ea3876ae4bb8f2ad09ca4da94e9bcd6a0c690e8957ba4cd5d11ac50d3b32e7c89df5c44fd523aef6ea5e9c05c3d  deviceinfo
 65f74d29ab318b23f7ac8923a3661f2c4130049273a8c6be234ed2c8e00810b6a1254b54cf0932e42850a6d48f821dcd038900fbb836feeddfab2759afffae38  phoc.ini
 2a3cbdad5aa91181d24a4e56e63986af6accf887c64fa4d1b6ddad1926e29050243c4b1e2fd892d38ca7c16e24dff8545a16552e5749ae31b6d01bf428468e51  q6voiced.conf
+373a0a4e653dd2b446f7e44851719d44370c5bd23f9e80e51fd85a4db505f147170b8dc438405c8d3aa2381db398396164445621d2e5c192b45bcd538cfddb15  80-libssc-shift-axolotl.rules
 "