mtk 天玑920之前的soc都能 解锁，刷机

git clone https://github.com/bkerler/mtkclient
cd mtkclient

apt install python3-fuse
python3 -m venv /home/my/pymtk
source /home/my/pymtk/bin/activate

python3 -m pip install -r requirements.txt 
python3 -m pip install  .
cp mtk  ~/pymtk/bin/
cp mtk_gui ~/pymtk/bin/
cp stage2  ~/pymtk/bin/

sudo cp mtkclient/Setup/Linux/*.rules /etc/udev/rules.d

sudo usermod -a -G plugdev $USER
sudo usermod -a -G dialout $USER

50-android.rules 必须要用 mtkclient 带的， 用debian发行版配置的，可能 找不到设备

usb_class - [LIB]: Couldn't get device configuration

显示gpt分区信息 (use –preloader for brom)

python mtk printgpt

备份所有的分区（除了userdata) 到 out 目录

python mtk rl   --skip userdata    out  

备份所有的分区 到 flash.bin 单个文件 (use –preloader for brom)

python mtk rf flash.bin

从 flash.bin 恢复到手机 (currently only works in da mode)

python mtk wf flash.bin

从 out 目录恢复所有分区文件到手机

python mtk wl out

解锁bootloader

mtk da seccfg unlock