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I'm a beginner, and at the moment I'm trying just to repack original boot image. I've discovered that boot partition is on the "/dev/block/mmcblk0p7", so I pulled it with adb pull /dev/block/mmcblk0p7 original_boot.img Then with tools from https://forum.xda-developers.com/showthread.php?t=2319018 I've unpacked original boot and then recompiled it. But then my image don't boot. Flashing it with TWRP caused bootloop. Where am I wrong?

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    Kinda close to off topic but I do not think so. My reasoning is because it has to do with repacking a boot image and not the compilation of the kernel. Also, I found a possible duplicate with this android.stackexchange.com/questions/69954/… check the compression also. How arw you repacking the boot.img?
    – Bo Lawson
    Mar 28, 2020 at 16:06
  • @BoLawson I don't think its a duplicate. First, I've unpack original_boot.img then used the command which Boot.img tools provided when unpacked: mkbootimg --kernel zImage --ramdisk initramfs.cpio.gz --base 0x4dffff00 --cmdline 'bootopt=64S3,32N2,64N2' --board '1450664547' -o new_boot.img
    – Nonono
    Mar 28, 2020 at 16:16
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    Use AIK Mar 28, 2020 at 16:23
  • @IrfanLatif same result
    – Nonono
    Mar 30, 2020 at 17:59

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