How to get micro SD Card CID on Android Devices

Solution 1:

  1. Install „Android Terminal Emulator“ and open new Terminal Window
  2. Execute command: cd /sys/class/mmc_host
  3. You see multiple folders like „mmc0“, „mmc1“ -> choise on of: „cd mmc0“
  4. Inside of „mmc0“ execute command: „cat mmc0:xxxx/cid“ (xxxx is device-specific, execute „ls“ to get right folder name)
  5. You can use the same procedure for „mmc1“, etc…

Solution 2:

Try it with this App: Micro SD CID Reader.

If the App is not available in App Store, download here:

Micro SD CID Reader