diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..f7c6a62
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,21 @@
+#
+# Copyright (C) 2020 The LineageOS Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+ifneq ($(filter gta4xl, $(TARGET_DEVICE)),)
+include $(call all-subdir-makefiles,$(LOCAL_PATH))
+endif
diff --git a/AndroidProducts.mk b/AndroidProducts.mk
new file mode 100644
index 0000000..f529f8e
--- /dev/null
+++ b/AndroidProducts.mk
@@ -0,0 +1,23 @@
+#
+# Copyright (C) 2020 The LineageOS Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+PRODUCT_MAKEFILES := \
+    $(LOCAL_DIR)/lineage_gta4xl.mk
+
+COMMON_LUNCH_CHOICES := \
+    lineage_gta4xl-eng \
+    lineage_gta4xl-user \
+    lineage_gta4xl-userdebug
diff --git a/BoardConfig.mk b/BoardConfig.mk
new file mode 100644
index 0000000..50de862
--- /dev/null
+++ b/BoardConfig.mk
@@ -0,0 +1,37 @@
+#
+# Copyright (C) 2020 The LineageOS Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include device/samsung/gta4xl-common/BoardConfigPlatform.mk
+include vendor/samsung/gta4xl/BoardConfigVendor.mk
+
+DEVICE_PATH := device/samsung/gta4xl
+
+PRODUCT_PLATFORM := exynos9611
+
+TARGET_OTA_ASSERT_DEVICE := gta4xl,gta4xlxx
+
+TARGET_SPECIFIC_HEADER_PATH += $(DEVICE_PATH)/hardware/include
+
+### KERNEL
+TARGET_KERNEL_CONFIG := exynos9611-gta4xl_defconfig
+
+### SYSTEM PROPS
+TARGET_SYSTEM_PROP += $(DEVICE_PATH)/system.prop
+
+### VENDOR SECURITY PATCH DATE
+VENDOR_SECURITY_PATCH := 2020-06-01
+
+### VENDOR PROPS
+TARGET_VENDOR_PROP += $(DEVICE_PATH)/vendor.prop
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..261eeb9
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
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+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
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+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
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+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/device.mk b/device.mk
new file mode 100644
index 0000000..36d03b3
--- /dev/null
+++ b/device.mk
@@ -0,0 +1,13 @@
+### PLATFORM
+$(call inherit-product, device/samsung/gta4xl-common/platform.mk)
+### PROPRIETARY VENDOR FILES
+$(call inherit-product, vendor/samsung/gta4xl/gta4xl-vendor.mk)
+
+### DALVIK
+$(call inherit-product, frameworks/native/build/phone-xhdpi-4096-dalvik-heap.mk)
+
+DEVICE_PATH := device/samsung/gta4xl
+
+DEVICE_PACKAGE_OVERLAYS += \
+    $(DEVICE_PATH)/overlay \
+    $(DEVICE_PATH)/overlay-lineage
diff --git a/extract-files.sh b/extract-files.sh
new file mode 100755
index 0000000..07de4b7
--- /dev/null
+++ b/extract-files.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+#
+# Copyright (C) 2020 The LineageOS Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+set -e
+
+DEVICE=gta4xl
+VENDOR=samsung
+
+# Load extract_utils and do some sanity checks
+MY_DIR="${BASH_SOURCE%/*}"
+if [[ ! -d "$MY_DIR" ]]; then MY_DIR="$PWD"; fi
+
+LINEAGE_ROOT="$MY_DIR"/../../..
+
+HELPER="$LINEAGE_ROOT"/vendor/lineage/build/tools/extract_utils.sh
+if [ ! -f "$HELPER" ]; then
+    echo "Unable to find helper script at $HELPER"
+    exit 1
+fi
+. "$HELPER"
+
+# Default to sanitizing the vendor folder before extraction
+CLEAN_VENDOR=true
+
+while [ "$1" != "" ]; do
+    case $1 in
+        -n | --no-cleanup )     CLEAN_VENDOR=false
+                                ;;
+        -s | --section )        shift
+                                SECTION=$1
+                                CLEAN_VENDOR=false
+                                ;;
+        * )                     SRC=$1
+                                ;;
+    esac
+    shift
+done
+
+if [ -z "$SRC" ]; then
+    SRC=adb
+fi
+
+# Initialize the helper
+setup_vendor "$DEVICE" "$VENDOR" "$LINEAGE_ROOT" false "$CLEAN_VENDOR"
+
+extract "$MY_DIR"/proprietary-files.txt "$SRC" "$SECTION"
+extract "$MY_DIR"/proprietary-files-vendor.txt "$SRC" "$SECTION"
+
+"$MY_DIR"/setup-makefiles.sh
diff --git a/lineage_gta4xl.mk b/lineage_gta4xl.mk
new file mode 100644
index 0000000..858bca9
--- /dev/null
+++ b/lineage_gta4xl.mk
@@ -0,0 +1,44 @@
+$(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/aosp_base.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/languages_full.mk)
+# Product API level
+#$(call inherit-product, $(SRC_TARGET_DIR)/product/product_launched_with_q.mk)
+
+# Inherit device configuration
+$(call inherit-product, device/samsung/gta4xl/device.mk)
+
+### BOOTANIMATION
+# vendor/lineage/config/common_full_phone.mk
+TARGET_SCREEN_HEIGHT := 2000
+TARGET_SCREEN_WIDTH := 1200
+# vendor/lineage/config/common.mk
+TARGET_BOOTANIMATION_HALF_RES := true
+
+### LINEAGE
+$(call inherit-product, vendor/lineage/config/common_full_phone.mk)
+
+## Device identifier. This must come after all inclusions
+PRODUCT_NAME := lineage_gta4xl
+PRODUCT_DEVICE := gta4xl
+PRODUCT_BRAND := samsung
+PRODUCT_MODEL := SM-P615
+PRODUCT_MANUFACTURER := samsung
+PRODUCT_PDA_MODEL := P615
+PRODUCT_PDA_MODEL_VERSION := XXU2ATHF
+PRODUCT_PDA_VERSION := $(PRODUCT_PDA_MODEL)$(PRODUCT_PDA_MODEL_VERSION)
+PRODUCT_SHIPPING_API_LEVEL := 29
+PRODUCT_GMS_CLIENTID_BASE := android-samsung
+
+PRODUCT_BUILD_PROP_OVERRIDES += \
+    PRODUCT_NAME=gta4xlxx \
+    PRODUCT_DEVICE=gta4xl \
+    PRIVATE_BUILD_DESC="gta4xlxx-user 10 QP1A.190711.020 $(PRODUCT_PDA_VERSION) release-keys"
+
+BUILD_FINGERPRINT := samsung/gta4xlxx/gta4xl:10/QP1A.190711.020/$(PRODUCT_PDA_VERSION):user/release-keys
+
+PRODUCT_PRODUCT_PROPERTIES += \
+    ro.build.PDA=$(PRODUCT_PDA_VERSION)
+
+ifneq ($(LINEAGE_DEV_CERTIFICATE),)
+    PRODUCT_DEFAULT_DEV_CERTIFICATE := $(LINEAGE_DEV_CERTIFICATE)
+endif
diff --git a/proprietary-files-vendor.txt b/proprietary-files-vendor.txt
new file mode 100644
index 0000000..f9751bc
--- /dev/null
+++ b/proprietary-files-vendor.txt
@@ -0,0 +1,40 @@
+### AUDIO
+vendor/etc/floating_feature.xml
+vendor/etc/mixer_gains.xml
+vendor/lib/hw/audio.primary.exynos9611.so
+vendor/lib/libaudio-ril.so
+vendor/lib/soundfx/libsamsungSoundbooster_plus.so
+vendor/lib/soundfx/libswdap.so
+vendor/lib64/soundfx/libsamsungSoundbooster_plus.so
+vendor/lib64/soundfx/libswdap.so
+
+### AUDIO_FIRMWARE
+vendor/firmware/AP_AUDIO_SLSI.bin
+vendor/firmware/calliope_dram.bin
+vendor/firmware/calliope_sram.bin
+
+# CAMERA_DEPENDENCIES
+vendor/lib/libexynoscamera3.so
+vendor/lib64/libexynoscamera3.so
+
+### GPS/GNSS
+vendor/bin/hw/gpsd
+vendor/etc/gnss/gps.cfg
+vendor/etc/init/init.gps.rc
+vendor/lib64/hw/android.hardware.gnss@2.0-impl.so
+vendor/lib64/hw/vendor.samsung.hardware.gnss@2.0-impl.so
+vendor/lib64/libwrappergps.so
+
+### RIL
+vendor/etc/init/init.baseband.rc
+vendor/etc/init/init.vendor.rilcommon.rc
+
+# TEEGRIS_FIRMWARE
+vendor/tee/00000000-0000-0000-0000-000000534b4d
+vendor/tee/00000000-0000-0000-0000-42494f535542
+vendor/tee/00000000-0000-0000-0000-4b45594d5354_vendor
+vendor/tee/00000000-0000-0000-0000-505256544545
+vendor/tee/00000000-0000-0000-0000-5345435f4652
+
+### WIDEVINE
+vendor/lib/libwvhidl.so
diff --git a/proprietary-files.txt b/proprietary-files.txt
new file mode 100644
index 0000000..b6a7046
--- /dev/null
+++ b/proprietary-files.txt
@@ -0,0 +1,6 @@
+### GPS
+system/etc/init/init.gpscommon.rc
+
+### RIL
+system/lib/libfactoryutil.so
+system/lib64/libfactoryutil.so
diff --git a/setup-makefiles.sh b/setup-makefiles.sh
new file mode 100755
index 0000000..ca79735
--- /dev/null
+++ b/setup-makefiles.sh
@@ -0,0 +1,48 @@
+#!/bin/bash
+#
+# Copyright (C) 2020 The LineageOS Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+set -e
+
+DEVICE=gta4xl
+VENDOR=samsung
+
+INITIAL_COPYRIGHT_YEAR=2020
+
+# Load extract_utils and do some sanity checks
+MY_DIR="${BASH_SOURCE%/*}"
+if [[ ! -d "$MY_DIR" ]]; then MY_DIR="$PWD"; fi
+
+LINEAGE_ROOT="$MY_DIR"/../../..
+
+HELPER="$LINEAGE_ROOT"/vendor/lineage/build/tools/extract_utils.sh
+if [ ! -f "$HELPER" ]; then
+    echo "Unable to find helper script at $HELPER"
+    exit 1
+fi
+. "$HELPER"
+
+# Initialize the helper
+setup_vendor "$DEVICE" "$VENDOR" "$LINEAGE_ROOT"
+
+# Copyright headers and guards
+write_headers
+
+write_makefiles "$MY_DIR"/proprietary-files.txt true
+write_makefiles "$MY_DIR"/proprietary-files-vendor.txt true
+
+# Finish
+write_footers
diff --git a/system.prop b/system.prop
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/system.prop
diff --git a/vendor.prop b/vendor.prop
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/vendor.prop