Mac Adb Devices Empty Emulator

Android Debug Bridge (adb) is a command line tool which lets you run commands on the connected Android device or an emulator. It is widely used for development purposes and is already available in Android Studio in android sdk/platform-tools. The commands which are run on the device through ADB are called “adb commands”. Here we are going to have a look at complete list of adb and fastboot commands and what actions they perform.

Table of Contents

I have problems with my brand new Oculus Go. When I want to list my connected devices via 'adb devices' no devices are listed.

• 2 List of ADB Commands and their Functions
• 4 List of Fastboot Commands and their Operations

How Android Debug Bridge (adb) works?

According to Wikipedia, the adbd daemon runs on the device and the adb client starts a background server to multiplex commands sent to the connected device.

Below are the list of adb and fastboot commands along with the description on what operations it performs.

List of ADB Commands and their Functions

adb devices

This command prints a list of all attached devices with USB Debugging enabled. In response, it returns the serial number and state of the device.

Syntax:

Response:

a123a456 device

adb forward

This command forwards the socket connections. It required USB Debugging enabled on the device.

Syntax:

Example:

Set up forwarding of host port 6100 to emulator/device port 7100

adb kill-server

It terminates the adb server process. Sometimes you might want to terminate the adb server and restart it to resolve the problems.

Syntax:

adb connect

This command allows using adb over Wi-Fi. This requires the host and the device connected to the same Wi-Fi network.

Syntax:

To use ADB over Wi-Fi, firstly connect the device to PC and set tcp ip port to 5555 using “adb tcpip 5555” command. Now find the IP address of the device from Settings -> About -> Status -> IP address. Now you can use adb connect command to use ADB over Wi-Fi.

Example:

adb usb

Restarts ADB in USB mode.

Syntax:

adb install

Pushes an Android application (.apk) from host to an emulator or the device.

Syntax:

Example:

adb uninstall

Uninstalls or removes the package from the emulator or Android device.

Syntax:

Example:

Netsupport school patch. Then you can turn it back on 2- Don't forget to copy the client numbers from Kegan to installation wizard, otherwise reg data will be shown as invalid. 1- Unpack and install.

adb shell pm list packages

Prints all packages installed on the device/emulator.

Syntax:

Example:

adb shell pm path

Prints the path to the APK of the given package.

Syntax:

Example:

adb shell pm clear

This command deletes all the data associated with the package (clears app data and cache).

Syntax:

Example:

adb pull

Downloads or pulls a specified file from an emulator/device to your computer (host).

Syntax:

Example:

To download test.mp4 to drive D below command is used.

adb push

This command is used to upload or push or copy a file from the host (computer) to an emulator or the device.

Syntax:

Example:

adb shell ls

Lists directory contents.

Syntax:

Example:

adb shell cd

Change the directory or folder.

Syntax:

Example:

adb shell rm

Removes files or directories.

Syntax:

Example:

adb shell mkdir

Make a directory or create a folder.

Syntax:

Example:

adb shell touch

Create an empty file or change file timestamps.

Syntax:

Example:

adb shell pwd

Prints current working directory location.

Syntax:

Example:

adb shell cp

Copy files and directories.

Syntax:

Example:

adb shell mv

Move or rename files.

Syntax:

Example:

adb shell netstat

Shows network statistics.

Syntax:

Example:

adb shell ping

Test the connection and the latency between two network connections.

Syntax:

Example:

adb shell net cfg

Manage and configure network connections via profiles.

Syntax:

Example:

adb shell ip

Show, manipulate routing, devices, policy routing, and tunnels.

Syntax:

object := { link addr addrlabel route rule neigh ntable tunnel tuntap maddr mroute mrule monitor xfrm netns l2tp }

optoins := { -V[ersion] -s[tatistics] -d[etails] -r[esolve] -f[amily] { inet inet6 ipx dnet link } -l[oops] { maximum-addr-flush-attempts } -o[neline] -t[imestamp] -b[atch] [filename] -rc[vbuf] [size]}

Example:

adb logcat

Prints log data on the screen.

Syntax:

adb shell dumpsys

Dumps system data.

Syntax:

Example:

adb shell dumpstate

Dumps state.

Syntax:

adb shell screencap

Takes a screenshot of the device’s display.

Syntax:

Example:

adb shell screenrecord

Records the device’s screen. It requires the device to be running on Android 4.4 (API level 19) or higher.

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Syntax:

Example:

adb root

Restarts the adbd daemon with root permissions.

Syntax:

adb sideload

Sideloads OTA update.zip package and other files on the device. Know more.

Syntax:

Example:

adb shell ps

Prints process status.

Syntax:

Example:

adb shell top

Displays top CPU processes.

Syntax:

Example:

adb shell getprop

Get property via the android property service.

Syntax:

Example:

adb shell setprop

This command is used to set property service.

Syntax:

Example:

What is Fastboot?

Fastboot is a diagnostic protocol primarily used to modify the flash filesystem via USB connection from the host computer. It requires the device be booted into boot loader mode or fastboot mode or secondary program loader mode. Once the fastboot protocol is enabled it accepts the commands sent to it via USB using command line interface.

List of Fastboot Commands and their Operations

Below is the list of fastboot commands which can be used to perform certain operations when the device is connected to the computer (host) in Fastboot mode / Bootloader mode.

fastboot devices

This command is similar to adb devices it prints a list of all attached devices in fastboot mode. In response, it returns the serial number of the device.

Syntax:

fastboot reboot

Reboots the device to normal or standard mode. Used to exit the fastboot mode or boot loader mode.

Syntax:

fastboot reboot recovery

This commands boots the device into Recovery Mode.

Syntax:

fastboot oem unlock

Unlocks bootloader on the device.

Syntax:

fastboot oem lock

Used to relock the bootloader on the device.

Syntax:

fastboot oem device-info

Prints bootloader lock/unlock status.

Syntax:

fastboot flash recovery

Flashes recovery image to the device.

Syntax:

Example:

fastboot boot

Used to boot the image file without installing or flashing on the device. Can be used to boot recovery image without flashing on the device.

Syntax:

Example:

fastboot flash

Flashes flashable zip file from fastboot or bootloader mode.

Syntax:

Example:

fastboot getvar cid

Displays CID (Carrier ID) of the device.

Syntax:

This was the complete list of ADB and Fastboot commands. However, to use the above fastboot and adb commands make sure you have installed ADB and Fastboot drivers – Windows, and Mac.

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ADB No Devices Found (20)

I am attempting to install an Android app on my brand new Nexus 10. I have a .apk file. I have downloaded the Android SDK, installed 'Android SDK Tools', 'Android SDK Platform-tools', and Google USB Driver. I have checked the setting on my Nexus 10 for 'Unknown Sources'.

When I run 'adb devices' from the command terminal, it doesn't list any devices. I attempted to follow this recommendation, because it was identical to a suggestion I had previously found here on Stack Overflow. After following those steps, 'adb devices' still returns an empty list and to make it worse, when I connect my Nexus 10 to my PC, Windows doesn't show any folders within the device.

I have undone the steps in that link, along with everything else I have done so far, as well as uninstalling my Nexus 10 from Device Manager and reinstalling it, but I am still not seeing any folders in the device.

Is there anything I am missing to get my device to show up in ADB devices?

What can I do to get Windows to see the folders within the device?

1. Go to device manager and check hardware id's.
2. Check if the usb.inf file has the device listed in it
3. If not, add the device hardware id and install it from the device manager.