[Android Head-Units] Avidanborisov:
I have bought the following unknown Chinese head-unit

https://www.aliexpress.com/item/4000986624605.html?spm=a2g0s.12269583.0.0.13b9c053LoWOaL

It is branded as Android 10, but the API level is 27 (Android 8.1) [disappointing]. Would it be possible to upgrade and root the firmware to a Joying based firmware (as described here), or to a Junsun based firmware as described here?

Ideally, I'd like to extract the current firmware as well, for backup.

Technical Info:

Device Info 2.2.1
Date Created Wed Aug 26 20:03:09 GMT+03:00 2020

Device
--------------------------------------------------------
Device Name : sp9853i_1h10
Model : sp9853i_1h10_vmm
Manufacturer : SPRD
Device : sp9853i_1h10
Board : sp9853i_1h10_vmm
Hardware : sp9853i_1h10
Brand : SPRD
Build Fingerprint : SPRD/sp9853i_1h10_vmmTos/sp9853i_1h10:8.1.0/OPM2.171019.012/17415:user/release-keys
USB Host : Supported

System
--------------------------------------------------------
Android Version : 10.0
Version Name : Oreo
Released Date : August 21, 2017
Code Name : Oreo MR1
API Level : 27
Security Patch Level : 2018-05-05
Bootloader : unknown
Build Number : OPM2.171019.012 release-keys
Baseband : FM_BASE_18A_RLS2_ISHARKL2_W18.37.1_P1|sc9853_modem|05-09-2019 11:29:15
Java VM : 2.1.0
Kernel : 4.4.83
Language : English (en_US)
OpenGL ES : 3.2
Root Access : No
SELinux : Permissive
Treble : Supported
Seamless Updates : Not Supported

CPU
--------------------------------------------------------
Processor : Spreadtrum SC9853I-IA
CPU Architecture : 8 x 1.87 GHz
Supported ABIs : x86_64, x86, armeabi-v7a, armeabi
CPU Hardware : Spreadtrum SC9853
CPU Type : 64 Bit
CPU Governor :
Cores : 8
CPU Frequency : 624 MHz - 1872 MHz
GPU Renderer : Mali-T820
GPU Vendor : ARM
GPU Version : OpenGL ES-CM 1.1 v1.r21p0-01rel0.c03820c50896cd16d2f6863c7ee3efba

Battery
--------------------------------------------------------
Health : Good
Level : 100%
Status : Charging
Power Source : AC
Technology :
Temperature : 42 ℃
Voltage : 0 mV

Display
--------------------------------------------------------
Resolution : 1280 x 720 Pixels
Density : 160 dpi (MDPI)
Font Scale : 1.25
Physical Size : 5.46 inches
Refresh Rate : 60.0 Hz
HDR : false
HDR Capabilities : None
Brightness Level : 49%
Brightness Mode : Manual
Screen Timeout : 60 Seconds
Orientation : Landscape

Memory
--------------------------------------------------------
Random Access Memory
------------------
Total : 4096.0MB
Available : 1610.0MB
Used : 2506.0MB
Used Percentage : 60%

System Storage
------------------
Total : 1.94GB
Available : 0.08GB
Used : 1.86GB
Used Percentage : 96%

Internal Storage
------------------
Total : 64.00GB
Available : 47.73GB
Used : 16.27GB
Used Percentage : 25%

External Storage
------------------
Total : 1.00GB
Available : 1.00GB
Used : 0.00GB
Used Percentage : 0%

Camera
--------------------------------------------------------
Camera - 0
------------------
Position : Back
Mega Pixels : 3.7 MP
Resolution : 1280x2880
Focal Length : 3.75mm

Camera - 1
------------------
Position : Back
Mega Pixels : 2.1 MP
Resolution : 1920x1080
Focal Length : 3.75mm

Camera - 2
------------------
Position : Back
Mega Pixels : 3.7 MP
Resolution : 1280x2880
Focal Length : 3.75mm

Thermal
--------------------------------------------------------
bia-thmzone - 73 ℃
ddr-thmzone - 67.4 ℃
gpu-thmzone - 66.4 ℃
pmic-thmzone - 68 ℃

Sensors
--------------------------------------------------------
Accelerometer Sensor
------------------
Vendor : Sprd Group Ltd.
Type : ACCELEROMETER
Power : 0.17mA

Magnetic field Sensor
------------------
Vendor : Sprd Group Ltd.
Type : MAGNETIC FIELD
Power : 5.0mA

Orientation Sensor
------------------
Vendor : Sprd Group Ltd.
Type : ORIENTATION
Power : 11.27mA

Gyroscope Sensor
------------------
Vendor : Sprd Group Ltd.
Type : GYROSCOPE
Power : 6.1mA

Light Sensor
------------------
Vendor : Sprd Group Ltd.
Type : LIGHT
Power : 0.15mA

Gravity
------------------
Vendor : Sprd Group Ltd.
Type : GRAVITY
Power : 11.27mA

Linear Acceleration
------------------
Vendor : Sprd Group Ltd.
Type : LINEAR ACCELERATION
Power : 11.27mA

Rotation Vector
------------------
Vendor : Sprd Group Ltd.
Type : ROTATION VECTOR
Power : 11.27mA

Magnetic Uncalibrated
------------------
Vendor : Sprd Group Ltd.
Type : MAGNETIC FIELD UNCALIBRATED
Power : 5.0mA

Game Rotation Vector
------------------
Vendor : Sprd Group Ltd.
Type : GAME ROTATION VECTOR
Power : 11.27mA

Gyroscope Uncalibrated
------------------
Vendor : Sprd Group Ltd.
Type : GYROSCOPE UNCALIBRATED
Power : 6.1mA

Step Detector
------------------
Vendor : Sprd Group Ltd.
Type : STEP DETECTOR
Power : 0.17mA

Step Counter
------------------
Vendor : Sprd Group Ltd.
Type : STEP COUNTER
Power : 0.17mA

Geomagnetic Rotation Vector
------------------
Vendor : Sprd Group Ltd.
Type : GEOMAGNETIC ROTATION VECTOR
Power : 11.27mA

Tilt detector
------------------
Vendor : Sprd Group Ltd.
Type : TILT DETECTOR
Power : 0.17mA

Device Orientation
------------------
Vendor : Sprd Group Ltd.
Type : DEVICE ORIENTATION
Power : 0.17mA

Stationary Detect
------------------
Vendor : Sprd Group Ltd.
Type : STATIONARY DETECT
Power : 0.17mA

Motion Detect
------------------
Vendor : Sprd Group Ltd.
Type : MOTION DETECT
Power : 0.17mA

Accelerometer Sensor (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : ACCELEROMETER
Power : 0.17mA

Magnetic field Sensor (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : MAGNETIC FIELD
Power : 5.0mA

Orientation Sensor (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : ORIENTATION
Power : 11.27mA

Gyroscope Sensor (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : GYROSCOPE
Power : 6.1mA

Light Sensor (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : LIGHT
Power : 0.15mA

Proximity Sensor
------------------
Vendor : Sprd Group Ltd.
Type : PROXIMITY
Power : 0.15mA

Gravity (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : GRAVITY
Power : 11.27mA

Linear Acceleration (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : LINEAR ACCELERATION
Power : 11.27mA

Rotation Vector (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : ROTATION VECTOR
Power : 11.27mA

Magnetic Uncalibrated (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : MAGNETIC FIELD UNCALIBRATED
Power : 5.0mA

Game Rotation Vector (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : GAME ROTATION VECTOR
Power : 11.27mA

Gyroscope Uncalibrated (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : GYROSCOPE UNCALIBRATED
Power : 6.1mA

Significant Motion
------------------
Vendor : Sprd Group Ltd.
Type : SIGNIFICANT MOTION
Power : 0.17mA

Step Detector (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : STEP DETECTOR
Power : 0.17mA

Step Counter (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : STEP COUNTER
Power : 0.17mA

Geomagnetic Rotation Vector (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : GEOMAGNETIC ROTATION VECTOR
Power : 11.27mA

Tilt detector (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : TILT DETECTOR
Power : 0.17mA

Wake Gesture
------------------
Vendor : Sprd Group Ltd.
Type : WAKE GESTURE
Power : 0.17mA

Glance Gesture
------------------
Vendor : Sprd Group Ltd.
Type : GLANCE GESTURE
Power : 0.17mA

Pick Gesture
------------------
Vendor : Sprd Group Ltd.
Type : PICK UP GESTURE
Power : 0.17mA

Device Orientation (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : DEVICE ORIENTATION
Power : 0.17mA

Stationary Detect (WAKE UP)
------------------
Vendor : Sprd Group Ltd.
Type : STATIONARY DETECT
Power : 0.17mA

Motion Detect (WAKE UP)
------------------
Vendor : Sprd Group Ltd.
Type : MOTION DETECT
Power : 0.17mA

Shake
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Tap
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Flip
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Twist
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Pocket mode
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Hand up
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Hand down
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Face up & down
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Context awareness
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Front Camera
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Rear Camera
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Shake (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Tap (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Filp (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Twist (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Pocket mode (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Hand up (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Hand down (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Face up & down(WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Context awareness (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Front Camera (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Rear Camera (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA

Media Flip (WAKE_UP)
------------------
Vendor : Sprd Group Ltd.
Type : PRIVATE SENSOR
Power : 0.17mA