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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?

Nonono
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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 https://android.stackexchange.com/questions/69954/how-to-unpack-and-edit-boot-img-for-rom-porting check the compression also. How arw you repacking the boot.img? – Bo Lawson Mar 28 '20 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 '20 at 16:16
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    Use AIK – Irfan Latif Mar 28 '20 at 16:23
  • @IrfanLatif same result – Nonono Mar 30 '20 at 17:59

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