Fix SONY Android Walkman not connecting to adb:
===============================================
Unlike the SONY Xperia Smartphones, the Android Walkman's will give en error when connecting to adb:

$ adb devices
* daemon not running; starting now at tcp:5037
* daemon started successfully
List of devices attached
001045d235253586        no permissions (missing udev rules? user is in the plugdev group); see [http://developer.android.com/tools/device.html]

To Fix this, follow these steps:

1. Check device vendor id and product id:
$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 0bda:8153 Realtek Semiconductor Corp. RTL8153 Gigabit Ethernet Adapter
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 06cb:009b Synaptics, Inc.
Bus 003 Device 003: ID 5986:2127 Bison Electronics Inc. HD Camera
Bus 003 Device 004: ID 8087:0026 Intel Corp. AX201 Bluetooth
Bus 003 Device 005: ID 054c:0cf2 Sony Corp. WALKMAN
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

Here my android device is Sony Corp. WALKMAN. So my vid=054c and pid=0cf2.

2. Now create a udev rule:
$ sudo nano /etc/udev/rules.d/51-android.rules

SUBSYSTEM=="usb", ATTR{idVendor}=="054c", ATTR{idProduct}=="0cf2", MODE="0666", GROUP="plugdev"

Save by Ctrl+X & then Y

3. Now the device is good to be detected once udev rule is reloaded. So, let's do it:
$ sudo udevadm control --reload-rules

4. Unplug the Walkman and plug it back in,

5. After this, again check if your device is detected by adb:
$ adb devices
List of devices attached
001045d235253586        device

6. Then launch into shell:
$ adb shell

Success!


------------------------------------------------------------------------------------------------------------------------------------------
Source: https://stackoverflow.com/questions/53887322/adb-devices-no-permissions-user-in-plugdev-group-are-your-udev-rules-wrong#53887437
Date: July 17th 2024