CPU/ABI value in sanataku tool

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Android

Hi,
I am trying to get the disk image of android device. I am following the tutorial given at the link:
https://resources.infosecinstitute.com/android-forensics-labs/#gref



Some body please guide me how to get the value for CPU/ABI field or tell me some other tool which can retrieve me the Android disk image with out rooting the device.

Zulfi.

What I have tried:

I have tried different devices but I am not getting any value for CPU/ABI. Target field is also showing just one single value:

Android 4.4W-APILevel20

I have tried to use Tools-->Options
and checked Force https://…
enable Preview Tools checkboxes and tried to install :

Android 4.4.2(API 19) by clicking on the “Install Packages” and then selecting the Packages from the
“Choose packages to install” from the install window but I can’t install any Package because the “install” button remains disable whatever the package I choose.