Using adb with multiple devices with the same serial number

Question

There are two devices connected with my computer.But when I start the adb, both of them have the serial number "0123456789ABCDEF".

When I try to install an APK, the installation fails with "more than one device" error message. enter image description here

In addition, I am developing a Bluetooth app, I need to use both of the two devices simultaneously.

Try make adb command. Refer to: http://stackoverflow.com/questions/13986155/adb-got-two-same-serial-numbers-when-connected-to-two-smart-phones — omersem, May 13 '15 at 12:39
Do you use Android studio or Eclipse to install the APK on the devices ? Or are you using the adb command line ? — Drakkin, May 13 '15 at 12:58
Can you please include the adb output showing 2 devices with the same name? (hint: the command I would like to see is the output from: adb devices) — Booger, May 13 '15 at 13:01

score 14 · Answer 1 · answered May 13 '15 at 17:28

adb devices -l command prints out some additional device parameters which can also be used with adb -s. Obviously it would help only if any of those extra parameters are unique. Fortunately for linux and osx users adb devices -l in those systems also reports unique USB port numbers:

$ adb devices -l
List of devices attached
XXXXXXXXXX             device usb:2-1.6.7.7 product:shamu model:Nexus_6 device:shamu

$ adb -s usb:2-1.6.7.7 shell
shell@shamu:/ $

score 8 · Accepted Answer · edited Oct 21 '15 at 18:02

8

Maybe I can help you, I was able to solve this issue by changing the device ID/Serial:

adb shell
cd /sys/class/android_usb/android0/
echo -n xxx > iSerial (the xxx is the device id you want)
cat iSerial (check the new device id)
Unplug usb cable and plug again, then the change worked.

To change each id, your PC should only be connected to one device via usb.

edited Oct 21 '15 at 18:02

António Almeida

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answered May 15 '15 at 06:11

胡亚军

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Didn't work on my devices... – António Almeida Oct 21 '15 at 18:09
Toni, you might need to use "su" if you don't have the permissions. Not sure if this will solve your problem but since my devices were rooted it just worked... – xxtesaxx May 25 '16 at 08:07
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You must have **ROOT access** for this purpose. Otherwise: _/system/bin/sh: can't create iSerial: Permission denied_. – Mir-Ismaili Jan 01 '17 at 04:32

Using adb with multiple devices with the same serial number

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