Same serial number on several android devices. Adb is useless. How can I change the serial number?

android adb serial-number
Seraphim's picture Seraphim's · Jan 15, 2013 · Viewed 24.1k times · Source

I bought a lot (500+) cheap China tablet with AllWinner processor and Android 4.0.3. All tablets expose the same serial number. I can't deploy my application simultaneously on several devices (with a USB hub) using ADB.EXE because it can't distinguish them.

I'm thinking about a pre-deploy process that change the internal serial number, is it possible? Where is the serial number stored?

Note: tablets are rooted

Answer

Alex P. picture Alex P. · Jan 15, 2013

You need to populate /sys/class/android_usb/android0/iSerial sysfs file with unique values for every device. Most vendors do it with custom init script, which would read the value from a persistent system property or a regular file and put it in sysfs on every power up.

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