Android User Guide

ADB

Enable Developer options and USB debugging, then connect the Type-C port:

adb devices
adb shell

Common operations:

adb push local_file /data/local/tmp/
adb pull /sdcard/file .
adb install app.apk
adb reboot

Select a device when multiple targets are connected:

adb -s <serial> shell

UART0 is the default debug console. A typical configuration is 115200 8N1 with all flow control disabled:

sudo picocom -b 115200 /dev/ttyUSB0

The connector is logic-level UART and must not be connected directly to an RS232 port.

AW869A provides Wi-Fi and Bluetooth. Enable them in Settings or inspect them with:

adb shell dumpsys wifi
adb shell dumpsys bluetooth_manager
adb shell rfkill list

adb shell lsblk
adb shell df -h
adb shell mount

Android normally mounts removable media through vold. M.2 detection also depends on protocol, kernel support and power.

adb shell ip link show
adb shell ip addr show eth0
adb shell ip route
adb shell ping -c 4 8.8.8.8

adb shell dumpsys display
adb shell dumpsys SurfaceFlinger --display-id
adb shell wm size
adb shell wm density

The active combination of HDMI OUT, MIPI DSI and eDP is controlled by device tree, display drivers and the Android display HAL.

adb shell dumpsys media.camera
adb shell dmesg | grep -iE "lt6911|mipi|csi|isp|vipp|camera|sensor"

Because HDMI IN is converted by LT6911C into MIPI CSI, source-format changes, bridge timing and CSI receiver settings must agree.

adb shell input keyevent 26
adb reboot
adb reboot recovery

For suspend/wake failures, save serial logs, logcat, dmesg and wake-source information together.