I have two smart phones (ZTEV788d, system Android 2.3.6) connected to a computer (Ubuntu 11.10) at the same time, using command: adb devices I got this:

List of devices attached
P753A12D    device
P753A12D    device

The serial numbers are the same!

I wrote an application in the computer side to communicate with these two phones, for example install app and push files.

I used these commands:

adb -s P753A12D install XXX.apk
adb -s P753A12D push XXX /sdcard

Now these two phones have the same serial no (P753A12D), when I run these commands I get this error:

error:more than one device

So, my questions are:

  1. Is that normal that two phones to have the same serial no?
  2. Can I change the serial no? if yes, how?
  3. Is there any way to run these install, push commands successfully even if the serial no are the same?

BTW, the WiFi/3G network will be turned off when I'll run the test.

android adb
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