Please Help me

How to Edit File /sys/firmware/devicetree/base/model ?

ARMBIAN 5.88 user-built Ubuntu 18.04.2 LTS 5.1.0-aml-s905

I think this is done by editing the device tree using ...

sudo armbian-config

 

Why do you want to edit the model name?

Given the build version info, you are not using an official Armbian build. What sbc are you working with?

And I would also like to ask, what are you trying to accomplish?  Editing dtb's is an expert level task.  I want to make sure you are going down the right path to accomplish your goals.

If you open the dts file for said board, you'll see something like this a few lines down from the top -> model = "Hardkernel ODROID-C4";

Whatever you put in there is what will spit out the model. You can name it -> model = "Hookers and Flapjacks";

 

Although, beyond laughs I see no real point in changing this.