diff --git a/device/testing/device-essential-mata/deviceinfo b/device/testing/device-essential-mata/deviceinfo
new file mode 100644
index 0000000000000000000000000000000000000000..bb65ddc447bce222c74e624255728886370d2d5d
--- /dev/null
+++ b/device/testing/device-essential-mata/deviceinfo
@@ -0,0 +1,31 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Essential PH1"
+deviceinfo_manufacturer="Essential"
+deviceinfo_codename="essential-mata"
+deviceinfo_year="2017"
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="false"
+deviceinfo_screen_width="800"
+deviceinfo_screen_height="600"
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="quiet androidboot.hardware=mata user_debug=31 msm_rtb.filter=0x37 ehci-hcd.park=3 lpm_levels.sleep_disabled=1 sched_enable_hmp=1 sched_enable_power_aware=1 service_locator.enable=1 swiotlb=2048 androidboot.configfs=true androidboot.usbcontroller=a800000.dwc3 loop.max_part=7 buildvariant=user veritykeyid=id:84678c054b9c09576bf1ecb156ea6e5e65f52593"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="false"
+deviceinfo_bootimg_dtb_second="false"
+deviceinfo_flash_offset_base="0x00000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="4096"
+