frida reports device not found but adb can discover it

[wrlu]

I try to use frida with such codes:

manager = frida.get_device_manager()
devices = manager.enumerate_devices()
for ldevice in devices:
      print('Device discovered: '+str(ldevice))
# A Google Pixel
device = manager.get_device('FA74D0301125')

Python output:

Device discovered: Device(id="local", name="Local System", type='local')
Device discovered: Device(id="tcp", name="Local TCP", type='remote')
InvalidArgumentError('device not found')

You can see that frida cannot discover the usb device, but in fact adb program can discover it:

PS> adb devices
List of devices attached
FA74D0301125    device

I also use this code but not work:

device = frida.get_usb_device()

I have already running the frida-server as root on the Google Pixel device. I don't know what's wrong with my phone? Please help, thanks.
More system infomation:
```
PC: Windows 10 Home Version 1909
Python: 3.7
Phone: Google Pixel (sailfish) with Android 9 by Lineage OS 16.0

[kliuz]

Try running:
device = frida.get_usb_device(1)
I had this bug as well but adding a time delay of 1 second seems to fix it.

[wrlu]

@kliuz I have tried this code but it does not work for my phone, thanks anyway~

[willish]

I also have this issue.

The device is not detected by frida:

> frida-ls-devices
Id     Type    Name
-----  ------  ------------
local  local   Local System
tcp    remote  Local TCP

But it shows up fine in ADB:

> adb devices
List of devices attached
FA71E3400239    device

Not found using the -D option

> frida-ps -D FA71E3400239
Device 'FA71E3400239' not found

Using the -U option and it works:

> frida-ps -U
  PID  Name
-----  --------------------------------------------------
 1010  adbd
 3029  android.process.acore
26186  android.process.media

[jiongjiong-zzzzzz]

I also have this issue.

The device is not detected by frida:

> frida-ls-devices
Id     Type    Name
-----  ------  ------------
local  local   Local System
tcp    remote  Local TCP

But it shows up fine in ADB:

> adb devices
List of devices attached
FA71E3400239    device

Not found using the -D option

> frida-ps -D FA71E3400239
Device 'FA71E3400239' not found

Using the -U option and it works:

> frida-ps -U
  PID  Name
-----  --------------------------------------------------
 1010  adbd
 3029  android.process.acore
26186  android.process.media

Have you solved it?

[willish]

No I have not solved it, just did a very ugly hack for now and forced it to use the USB device. This is not ideal because I want to connect to multiple frida servers

[jiongjiong-zzzzzz]

is ok running the frida-server as root on the Google Pixel device ？ @wrlu

[jiongjiong-zzzzzz]

My solution is to reduce the Frida version to 12.6.8, and the Frida tools version to 2.1.0. The latest version of Frida is not compatible with systems other than Android native @willish @wrlu

[qdk0901]

I encounter the same issue，and solve like this

import sys
import threading

PACKAGE = 'xxxx'

def get_device():
    mgr = frida.get_device_manager()
    changed = threading.Event()
    def on_changed():
        changed.set()
    mgr.on('changed', on_changed)

    device = None
    while device is None:
        devices = [dev for dev in mgr.enumerate_devices() if dev.type =='usb']
        if len(devices) == 0:
            print ('Waiting for usb device...')
            changed.wait()
        else:
            device = devices[0]

    mgr.off('changed', on_changed)
    return device;

if __name__ == '__main__':
    jscode = open('script.js', 'r').read()
    device = get_device()
    print(device)
    process = device.attach(PACKAGE)
    print(process)
    script = process.create_script(jscode)
    script.load()
    sys.stdin.read()

[wrlu]

@kliuz I solve this problem by use my another Nexus 6P phone with Android 8.1. Thanks for your help~

[lyg4795]

I encounter the same issue，and solve like this

import sys
import threading

PACKAGE = 'xxxx'

def get_device():
    mgr = frida.get_device_manager()
    changed = threading.Event()
    def on_changed():
        changed.set()
    mgr.on('changed', on_changed)

    device = None
    while device is None:
        devices = [dev for dev in mgr.enumerate_devices() if dev.type =='usb']
        if len(devices) == 0:
            print ('Waiting for usb device...')
            changed.wait()
        else:
            device = devices[0]

    mgr.off('changed', on_changed)
    return device;

if __name__ == '__main__':
    jscode = open('script.js', 'r').read()
    device = get_device()
    print(device)
    process = device.attach(PACKAGE)
    print(process)
    script = process.create_script(jscode)
    script.load()
    sys.stdin.read()

it work

[xuanlv1998]

Thanks, it does work

[jin-pin-mei-le]

我遇到同样的问题，并像这样解决

import sys
import threading

PACKAGE = 'xxxx'

def get_device():
    mgr = frida.get_device_manager()
    changed = threading.Event()
    def on_changed():
        changed.set()
    mgr.on('changed', on_changed)

    device = None
    while device is None:
        devices = [dev for dev in mgr.enumerate_devices() if dev.type =='usb']
        if len(devices) == 0:
            print ('Waiting for usb device...')
            changed.wait()
        else:
            device = devices[0]

    mgr.off('changed', on_changed)
    return device;

if __name__ == '__main__':
    jscode = open('script.js', 'r').read()
    device = get_device()
    print(device)
    process = device.attach(PACKAGE)
    print(process)
    script = process.create_script(jscode)
    script.load()
    sys.stdin.read()

这行得通

This is useful ! Thanks ~