CHUWI Hi9 Plus unlock, root, TWRP, etc

Model CHUWI Hi9 Plus
CPU MTK6797X Helio X27 Deca Core 20nm
A53*4 2.0 GHz
A53*4 1.6 GHz
GPU ARM Mali-T880 875MHz
System Android 8.0
RAM 4GB DDR3
Capacity 64GB EMMC
Screen 10.8 Inch IPS Capacitive Screen
Resolution 1600x2560
Camera Front is 8.0MP Rear is 8.0MP
Microphone Built-in
Speaker Built-in
WIFI 802.11 a/b/g/n/ac(support 2.4GHz and 5.0 GHz)
Bluetooth 4.2
GPS Support
G-sensor Support
Brand(Network)
GSM: 2/3/5/8(PCS1900.DCS1800.GMS850.GMS900)
WCDMA...