adb Verified current stable Not installed? System Operations

Adb / Stop Adb Server

Stop Adb Server

Terminate the Android Debug Bridge server with 'adb kill-server' to manage device connections and resolve state issues.

$
Terminal
adb kill-server

When To Use

Utilize 'adb kill-server' when debugging connectivity issues between a host machine and Android devices. This is crucial when device states are inconsistent across sessions, indicating potential corruption in the adb server state or unexpected process behavior from stale socket connections.

Pro Tip

If 'adb kill-server' doesn't resolve connectivity issues, check for hidden adb processes that may not terminate properly due to OS-level restrictions or concurrent adb versions installed.

Terminal Output

Expected runtime feedback

Simulated preview
>
Output
* daemon not running; starting now at tcp:5037
* daemon started successfully

Anatomy of Output

Understanding the result

No output if successful Success

Indicates the adb server terminated effectively, releasing all device connections.

* daemon not running. starting it now on port 5037 * Service Restart

When restarting adb, this line appears if the server was successfully terminated.

* daemon started successfully * Verification

Confirmation that a fresh adb server instance has been initialized.

Power User Variants

Optimized versions

adb kill-server && adb start-server

Forces a restart. The chain ensures no residual stale connections by cleaning and immediately restarting the server.

Unix Pipeline

Shell combinations

adb kill-server && lsof -i:5037 | grep adb | xargs kill -9

Detect and terminate any lingering adb processes that could interfere with subsequent adb commands.

Troubleshooting

Common pitfalls

error: more than one device/emulator

Solution: Occurs when adb server is still in process of terminating. Wait and retry the command.

cannot bind to local socket: Address already in use

Solution: Ensure no networking issues or socket conflicts. Consider rebooting your host machine.

adb server version (36) doesn't match this client (40); killing...

Solution: Mismatch in adb versions between server and client. Update or synchronize versions across as needed.

Command Breakdown

What each part is doing

adb
Base Command
The executable that performs this operation. Here it runs Adb before the shell applies any redirect operators.

How To Run

Execution path

  1. Step 1

    Open your terminal or command prompt.

  2. Step 2

    Run the command: adb kill-server.

  3. Step 3

    Verify the server status with: adb devices.

Alternative Approaches

Comparable commands in other tools

Alternative system operations tools for the same job.