diff --git a/device/testing/device-samsung-j3ltetw/APKBUILD b/device/testing/device-samsung-j3ltetw/APKBUILD
new file mode 100644
index 000000000..7ce2e3f50
--- /dev/null
+++ b/device/testing/device-samsung-j3ltetw/APKBUILD
@@ -0,0 +1,38 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-samsung-j3ltetw
+pkgdesc="Samsung Galaxy J3 (2016)"
+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
+	soc-qcom-msm8916-rproc
+"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+_pmb_select="soc-qcom-msm8916-rproc"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+nonfree_firmware() {
+	pkgdesc="GPU/WiFi/BT/Video(/Modem) firmware"
+	depends="firmware-qcom-adreno-a300 msm-firmware-loader firmware-samsung-j3ltetw-wcnss-nv"
+	mkdir "$subpkgdir"
+}
+
+sha512sums="
+43366bdbbb8ce1437c3f204c384c68f197f4f67e125e005e313301ec13455c40955674fbd6731cc5a060de8bf319c7d5c3cc03a0dc6a3935c55f59d99ff5eab4  deviceinfo
+"
diff --git a/device/testing/device-samsung-j3ltetw/deviceinfo b/device/testing/device-samsung-j3ltetw/deviceinfo
new file mode 100644
index 000000000..5cd4be8d6
--- /dev/null
+++ b/device/testing/device-samsung-j3ltetw/deviceinfo
@@ -0,0 +1,33 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Samsung Galaxy J3 2016"
+deviceinfo_manufacturer="Samsung"
+deviceinfo_codename="samsung-j3ltetw"
+deviceinfo_year="2016"
+deviceinfo_dtb="qcom/msm8916-samsung-j3ltetw"
+deviceinfo_append_dtb="true"
+deviceinfo_modules_initfs="panel-simple msm"
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_gpu_accelerated="true"
+deviceinfo_chassis="handset"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="720"
+deviceinfo_screen_height="1280"
+deviceinfo_getty="ttyMSM0;115200"
+
+# 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-samsung-j3ltetw/APKBUILD b/device/testing/firmware-samsung-j3ltetw/APKBUILD
new file mode 100644
index 000000000..616e07811
--- /dev/null
+++ b/device/testing/firmware-samsung-j3ltetw/APKBUILD
@@ -0,0 +1,32 @@
+pkgname=firmware-samsung-j3ltetw
+pkgver=1
+pkgrel=0
+_name="Samsung Galaxy J3 (2016)"
+pkgdesc="Firmware for $_name"
+url="https://postmarketos.org"
+subpackages="$pkgname-wcnss-nv:wcnss_nv"
+arch="aarch64"
+license="proprietary"
+options="!check !strip !archcheck !tracedeps pmb:cross-native"
+source="$pkgname-WCNSS_qcom_wlan_nv.bin.base64::https://pastebin.com/raw/fRk3jmJE"
+
+_fwdir="/lib/firmware/postmarketos"
+
+unpack() {
+	default_unpack
+	base64 -d $pkgname-WCNSS_qcom_wlan_nv.bin.base64 > WCNSS_qcom_wlan_nv.bin
+}
+
+package() {
+	# parent package is empty
+	mkdir -p "$pkgdir"
+}
+
+wcnss_nv() {
+	pkgdesc="$_name WiFi/BT firmware configuration"
+	install -Dm644 "$srcdir"/WCNSS_qcom_wlan_nv.bin -t "$subpkgdir/$_fwdir"/wlan/prima
+}
+
+sha512sums="
+5ef881795fbcd5defc0c3a040638a2d3dc1a4cc850b19f49744ea67dfd2b6bf5000cfc1987840d9a646767cfc4276cd229681c06d60ca00aeb193c2c519e7419  firmware-samsung-j3ltetw-WCNSS_qcom_wlan_nv.bin.base64
+"