diff --git a/device/testing/device-oppo-a51f/APKBUILD b/device/testing/device-oppo-a51f/APKBUILD
new file mode 100644
index 000000000..61277681c
--- /dev/null
+++ b/device/testing/device-oppo-a51f/APKBUILD
@@ -0,0 +1,30 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-oppo-a51f
+pkgdesc="OPPO Mirror 5s"
+pkgver=1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="aarch64"
+options="!check !archcheck"
+depends="postmarketos-base mkbootimg linux-postmarketos-qcom-msm8916 soc-qcom-msm8916"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+nonfree_firmware() {
+	pkgdesc="GPU/WiFi/BT/Video firmware"
+	depends="linux-firmware-qcom firmware-oppo-a51f-venus
+		 firmware-qcom-msm8916-wcnss firmware-oppo-a51f-wcnss-nv"
+
+	mkdir "$subpkgdir"
+}
+sha512sums="1db537a1d7f04dabd55912593070eac900a5fd07fb20d840f9fe5b4871e4e878a0423c7c17096f8c64375835fc55a7526304f6d8f986f74820494d252857a922  deviceinfo"
diff --git a/device/testing/device-oppo-a51f/deviceinfo b/device/testing/device-oppo-a51f/deviceinfo
new file mode 100644
index 000000000..080bfbc00
--- /dev/null
+++ b/device/testing/device-oppo-a51f/deviceinfo
@@ -0,0 +1,35 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="OPPO Mirror 5s"
+deviceinfo_manufacturer="OPPO"
+deviceinfo_codename="oppo-a51f"
+deviceinfo_year="2015"
+deviceinfo_dtb="qcom/msm8916-oppo-a51f"
+deviceinfo_append_dtb="true"
+deviceinfo_modules_initfs=""
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_chassis="handset"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="720"
+deviceinfo_screen_height="1280"
+deviceinfo_getty="ttyMSM0;115200"
+
+# MSM DRM cannot take over the framebuffer from the bootloader at the moment
+deviceinfo_no_framebuffer="true"
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="earlycon console=ttyMSM0,115200 PMOS_NO_OUTPUT_REDIRECT"
+deviceinfo_generate_bootimg="true"
+deviceinfo_flash_offset_base="0x80000000"
+deviceinfo_flash_offset_kernel="0x00080000"
+deviceinfo_flash_offset_ramdisk="0x02000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x01e00000"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_flash_sparse="true"
diff --git a/device/testing/firmware-oppo-a51f/APKBUILD b/device/testing/firmware-oppo-a51f/APKBUILD
new file mode 100644
index 000000000..5f55174aa
--- /dev/null
+++ b/device/testing/firmware-oppo-a51f/APKBUILD
@@ -0,0 +1,48 @@
+pkgname=firmware-oppo-a51f
+pkgver=1
+pkgrel=0
+_commit="2064c468592fcd5ac080a7de20039b8c0e6aec83"
+pkgdesc="Firmware files for Oppo A51f"
+url="https://postmarketos.org"
+subpackages="$pkgname-modem $pkgname-venus $pkgname-wcnss $pkgname-wcnss-nv:wcnss_nv"
+arch="aarch64"
+license="proprietary"
+source="https://gitlab.com/natsu1978/firmware-oppo-a51f/-/archive/$_commit/firmware-oppo-a51f-$_commit.tar.gz"
+options="!check !strip !archcheck !tracedeps pmb:cross-native"
+builddir="$srcdir/firmware-oppo-a51f-$_commit"
+
+_fwdir="/lib/firmware/postmarketos"
+
+package() {
+	# parent package is empty
+	mkdir -p "$pkgdir"
+}
+
+modem() {
+	pkgdesc="Oppo A51f modem firmware"
+	install -Dm644 "$builddir"/modem.* -t "$subpkgdir/$_fwdir"
+	install -Dm644 "$builddir"/mba.* -t "$subpkgdir/$_fwdir"
+
+}
+
+venus() {
+	pkgdesc="Oppo A51f video firmware"
+	install -Dm644 "$builddir"/venus.mdt "$builddir"/venus.b* \
+		-t "$subpkgdir/$_fwdir"/qcom/venus-1.8
+
+}
+
+wcnss() {
+	pkgdesc="Oppo A51f WiFi/BT firmware"
+	provides="firmware-qcom-msm8916-wcnss"
+
+	install -Dm644 "$builddir"/wcnss.* -t "$subpkgdir/$_fwdir"
+
+}
+
+wcnss_nv() {
+	pkgdesc="Oppo A51f WiFi/BT firmware configuration"
+	install -Dm644 "$builddir"/WCNSS_qcom_wlan_nv.bin -t "$subpkgdir/$_fwdir"/wlan/prima
+
+}
+sha512sums="e0da84c04df9aa2bfaff24498cf6831f0bc6c15087627056395cd14fc258463df4c076f65393915aa4a73d65b34aa19f9b3283002206436d2153a71fba7fe052  firmware-oppo-a51f-2064c468592fcd5ac080a7de20039b8c0e6aec83.tar.gz"