ro.boot.serialno changing on my android 11 device with imx8mq mcu

[topkarag]

Hello all
I have an issue with changing serial number ( ro.boot.serialno) of my android 11 device which is build by imx8mq mcu. I have checked with fastboot tool but there is no any command as setvar which ı can set serialnumber. There is only getvar command which returns me the serial number. let me show you the message.

gurkan.topkara\Documents\\platform-tools>fastboot getvar serialno

serialno: 1e0c81d6f6c99ecd

Finished. Total time: 0.007s
So, i think fastboot is wrong method since there is no any setvar command. Do you help me to change ro.boot.serialno of my android11 device. It should be changed after build process because we develop about 1000 device and we will give the serial number uniquely for each of them.  I think it is written in eFuse of MCU. I have checked but ı could not understand well. If you suggest any method or document, it would be perfect. 

Best Regards

[topkarag]

Hello Bio
I can not change the serial number still. If is there any way to change it ? Do you recommend any way to change it please if you know. 

Best regards

[Bio_TICFSL]

Hello,

The ID attestation allows the device to provide proof of its hardware identifiers. For more information about ID attestation, see https://source.android.com/security/keystore/attestation. All hardware identifiers provisioned should match related system properties.

You can try:

adb shell getprop | grep ro.boot.serialno

and;

adb shell getprop ro.boot.serialno does the trick without post-processing the output.

regards

[topkarag]

thank you for your response. I have tried getprop ro.serialno and getprop ro.boot.serialno commands on device. It returns my serialnumber directly. I want to change it for our specific ID to have unique device. 

I will check out the link which you mentioned and let you know if there is anything updated. 
Best Regards