Hi @shan2911
It is confusing, so I will try to clarify. When the 410E boots it goes through about 5 stages, where each stage is fetching more code off the eMMC. You need to use versions of each stage that are compatible with each other, and compatible with the AOSP you are building. You have older versions of the stages and this why the kernel you built won’t boot.
The kernel you are building needs the latest versions of all of the stages, and the correct partition table. The easiest way to get all of the right versions and partition table is to build an install SDCard with the latest Debian release and load the eMMC from the SDCard. Once you have done this (and tested that it correctly boots from eMMC after removing the SDCard), then you can use fastboot to install the new AOSP kernel (boot) and user file system (rootfs) that you have built.
Hope this helps.
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