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Image Builder

Image builder for Mi8937

进入原厂的fastboot安装lk2nd到boot
https://github.com/msm8916-mainline/lk2nd/releases/download/22.0/lk2nd-msm8952.img
fastboot flash boot lk2nd-msm8952.img

安装后重启到lk2nd 的fastboot里(开机时按住 音量下键)
若原厂 bootloader 也用相同按键:
❌ 不要开机瞬间按(会触发原厂 fastboot)
✅ 等屏幕亮 / 设备振动后再按(让原厂 BL 忽略按键,交给 lk2nd 处理)

再刷ubuntu 的 boot system
fastboot flash boot boot.bin
fastboot flash system rootfs.bin

ssh的 用户名:user 密码:1

亮度控制,关背光
echo 0 > /sys/class/backlight/backlight/brightness
查看电量
cat /sys/class/power_supply/qcom-battery/capacity
#otg状态,插入otg线后,会自动变成host模式
cat /sys/class/extcon/extcon0/state

=================================================

boot.bin 里面默认是红米3s的dtb,如果是其它mi8937设备,需要自行修改boot.bin里面的extlinux.conf 的dtb名称,修改方法如下:
simg2img boot.bin bootext.bin
mkdir -p /mnt/boot
mount bootext.bin /mnt/boot
挂载后修改/mnt/boot/extlinux/extlinux.conf,修改完成后umount /mnt/boot
img2simg bootext.bin bootnew.bin
使用fastboot刷入bootnew.bin即可

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