adb: error: failed to get feature set: no devices/emulators found....... Please help

[mouazdk]

When I try to mirror my android phone it says

adb: error: failed to get feature set: no devices/emulators found
ERROR: "adb push" returned with value 1
Press any key to continue...
Please help me :'(

[npes87184]

Hi, @mouazvd

Do you enable adb debug in your phone?

Thanks.

[mouazdk]

@npes87184 yes, i enabled adb debug but the android on my phone is 4.0.3
could be a problem ?

[rom1v]

my phone is 4.0.3
could be a problem ?

Yes.

The Android part requires at least API 21 (Android 5.0).

https://github.com/Genymobile/scrcpy#requirements

See #98.

[mouazdk]

@rom1v Thanks man, i tried a new android with Android 6, he still show me the same message

what is the solution ?

[rom1v]

If you are on Windows: https://github.com/Genymobile/scrcpy/blob/master/FAQ.md#on-windows-my-device-is-not-detected

[mesabuca]

Well I have the same issue. Android 7.0 adb enabled everything is fine except the application

[rom1v]

everything is fine

adb devices?

[mesabuca]

Ok I figure out sorry. I change my cable and it works.

[jpark006]

@mesabuca what cable do you use?

I did everything as instructed and still getting the same error.

I'm using usb c to usb c connection instead of usb a. is that a problem?

[fabienwang]

Hi,
Android 9 here and Arch Linux.

This is just to point that for me, it was the package android-udev which resolved the problem.

https://github.com/M0Rf30/android-udev-rules

[NoXXoN123]

Im getting the same error. im on android 7 and i tested 3 usb b cables

[rom1v]

https://github.com/Genymobile/scrcpy/blob/master/FAQ.md#device-not-detected

[WahajAhmedIqbal]

INFO: scrcpy 1.12.1 https://github.com/Genymobile/scrcpy
adb: error: failed to get feature set: no devices/emulators found
ERROR: "adb push" returned with value 1
Any idea of how to solve this ? (I'm using ubuntu 20.04)

[accnetdev]

Hi,
Same here on Kubuntu 20.04.
It worked up to last week, OS updates ?

[abhaydasah]

adb kill-server #start clean

plug your device
adb devices #check if the device is connected
or

connect via TCP
adb connect IP:PORT

export the path to currently used adb or use the same path to adb when you connected to the device, in the previous step
export ADB=$(which adb) scrcpy

run scrpy
scrcpy

[applicatlat]

Hi bois. I received this error as well.

INFO: scrcpy 1.17 https://github.com/Genymobile/scrcpy
adb: error: failed to get feature set: more than one device/emulator
ERROR: "adb push" returned with value 1

and I can see my two beloved android phones:

INFO: scrcpy 1.17 https://github.com/Genymobile/scrcpy
adb: error: failed to get feature set: more than one device/emulator
ERROR: "adb push" returned with value 1

Downloads\scrcpy-win64-v1.17>adb devices
List of devices attached
5WHssss device
10sssss device

How can I run two emulators at the same time

[rom1v]

https://github.com/Genymobile/scrcpy/blob/master/FAQ.md#several-devices-connected

[subhojitdp]

You might have enabled Developer Options!! But you haven't enabled the USB debugging option. So just go inside the Developer Options and enable it. Your scrcpy.exe will start working.

[saulsmokeitall]

He literally said he already checked and made sure it was enabled😂

[Arun-arbadev]

If someone still having this error over WiFi - "adb: error: failed to get feature set: no devices/emulators found"
Along with these kinds of warnings - "adb server version (41) doesn't match this client (39); killing..."

What you need to do is to set the environment variable ADB to the path of real adb binary from your installation.
On Linux, this works beautifully:

Connect USB first and run the following commands:

$ adb tcpip 5555
$ adb connect xxx.xxx.xxx.xxx:5555 

Disconnect USB now and run the following command:

$ ADB=`which adb` scrcpy

Note that back-quotes are used here: which adb. Alternatively, you can give complete path as this:

$ ADB=/path/to/sdk/adb scrcpy

[oopsmaniac]

adb: error: failed to get feature set: no devices/emulators found
ERROR: "adb push" returned with value 1
Personaly i solved the problem in downloading "Universal ADB Driver v6.0" here: https://androidmtk.com/download-universal-adb-driver and in installing it in following the instructions here: https://androidmtk.com/install-universal-adb-driver After that my Redmi note 8 pro was recognized perfectly by scrcpy and no error messages anymore.

[syarz]

I had this issue and here's how I fixed it (Android 10)

Connect the USB cable and from your android device slide down the Notification Bar and select USB for file transfer (USB Debugging must be enabled) -> keep pressing until you see the USB setting-> here in the "USB Controlled by" sub-menu select "connected devices" & in the "Use USB for" -> Transferring files / Android Auto. This should resolve the problem with the USB connection. Make sure you have installed the USB driver for your android device

[maximedrouhin]

I had the same issue, and I fixed it simply by changing the cable. Some cables are for charging only, you have to use a cable capable of transferring data.

[zackiru]

INFO: scrcpy 1.18 https://github.com/Genymobile/scrcpy
/usr/local/share/scrcpy/scrcpy-server: 1 file pushed. 0.9 MB/s (37330 bytes in 0.039s)
[server] INFO: Device: vivo V2031 (Android 11)
INFO: Renderer: opengl
INFO: OpenGL version: 3.0 Mesa 20.0.8
INFO: Trilinear filtering enabled
INFO: Initial texture: 1080x2408
[server] ERROR: Exception on thread Thread[main,5,main]
android.media.MediaCodec$CodecException: Error 0xfffffff4
at android.media.MediaCodec.native_configure(Native Method)
at android.media.MediaCodec.configure(MediaCodec.java:2127)
at android.media.MediaCodec.configure(MediaCodec.java:2043)
at com.genymobile.scrcpy.ScreenEncoder.configure(ScreenEncoder.java:237)
at com.genymobile.scrcpy.ScreenEncoder.internalStreamScreen(ScreenEncoder.java:90)
at com.genymobile.scrcpy.ScreenEncoder.streamScreen(ScreenEncoder.java:61)
at com.genymobile.scrcpy.Server.scrcpy(Server.java:80)
at com.genymobile.scrcpy.Server.main(Server.java:255)
at com.android.internal.os.RuntimeInit.nativeFinishInit(Native Method)
at com.android.internal.os.RuntimeInit.main(RuntimeInit.java:433)
WARN: Device disconnected
WARN: Killing the server...

how can i fix this?

[rom1v]

android.media.MediaCodec$CodecException: Error 0xfffffff4

@zackiru #833

[ChienKaiMa]

I solved this "no devices/emulators found" issue on my device (LG K51S) by changing the USB option from File Transfer to Charging. Then my device showed up in adb devices as an unauthorized device. The phone showed up a hint to authorize itself, so the rest is rather simple. Hope this helps.

[cc1-a]

When I try to mirror my android phone it says

adb: error: failed to get feature set: no devices/emulators found ERROR: "adb push" returned with value 1 Press any key to continue... Please help me :'(

Hi bois. I received this error as well.

INFO: scrcpy 1.17 https://github.com/Genymobile/scrcpy adb: error: failed to get feature set: more than one device/emulator ERROR: "adb push" returned with value 1

and I can see my two beloved android phones:

INFO: scrcpy 1.17 https://github.com/Genymobile/scrcpy adb: error: failed to get feature set: more than one device/emulator ERROR: "adb push" returned with value 1

Downloads\scrcpy-win64-v1.17>adb devices List of devices attached 5WHssss device 10sssss device

How can I run two emulators at the same time

you have to enable the USB debugging then that will solve the problem

[PortWhisperer]

I had the same issue, and I fixed it simply by changing the cable. Some cables are for charging only, you have to use a cable capable of transferring data.

Just want to confirm this works on windows. It looks like file transfer mode ironically doesn't invoke USB debugging from the connected workstation, but charging mode does. As soon as I changed to charging mode, I got the expected RSA fingerprint prompt on my android 8.0 device

[Netinbook]

Here is the tried and tested solution.
https://stackoverflow.com/questions/18930050/adb-connection-over-tcp-not-working-now

[samee-ch]

Hi, @mouazvd

Do you enable adb debug in your phone?

Thanks.

thanks