Android logcat Method for viewing non-wifi/usb devices, androidlogcat

Android logcat Method for viewing non-wifi/usb devices, androidlogcat
Android: how to view logcat without wifi/usb devices

A custom Android device with wifi removed. I need to debug a USB device so that I cannot use usb to output logcat.

Because this USB device requires kernel driver support, it cannot be debugged on other devices.

Therefore, some methods include outputting logcat via Bluetooth, which is supported by Android wear.
Adding capture error and Exception Code to the Code to write the code to the SD card is a huge workload and troublesome

2. Simple Solution 1. Install Android Terminal software.

One available link is
Http://jackpal.github.io/Android-Terminal-Emulator/downloads/Term.apk
Enter commands on the display

2. Enter the command in Terminal.

Logcat-f/sdcard/m. log

Then the application is executed.

3. Disable log Capture.

You can enter ctrl-c in the terminal window, usually the volume minus + c key.

4. Download the capture results

You can switch the device to the USB flash drive mode, or use adb pull/sdcard/m. log to analyze and view the device from the PC,