Even if you could get hold of the app, it wouldn't work as expected as the service itself doesn't support these older Android versions and it almost certainly crashed in the first place because of this.
There is a portal to get Microsoft Intune for previous releases?

I was using it for Android 5.1, but the app crashed and I removed it. Now I´m trying to install again, however the new version is only for Android 6 and above. Where Can I find the compatible version for my Android? For Android 5.1.
Thanks.
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Lu Dai-MSFT 24,286 Reputation points Microsoft Vendor
2021-09-09T03:27:15.97+00:00 @Jorge Thanks for posting in our Q&A.
For this issue, I agree with Jason. It is suggested to use the new version. If we insist on using the old version, it will be very difficult to get support when it occurs some issues in the future.
Thanks for understanding.
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