any one know how to unpack/repack cm11 boot.img - Android Q&A, Help & Troubleshooting

for while unpack it gives errror
error: android magic header not found

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Need original boot.img 10.7.A.0.222

Can anyone here provide me Stock/Un-modded/original boot.img 10.7.A.0.222 for pollux?
I extracted the boot.img by adb from my pollux but I get error messages when I type this command:
abootimg -X boot.img
boot.img: no Android Magic Value
boot.img: not a Valid Android Boot Image
I have kernel.sin from 10.7.A.0.222.
Rootk1t said:
I have kernel.sin from 10.7.A.0.222.
Click to expand...
Click to collapse
Thanks @Rootk1t

What Is DTB And How Do I Generate It?

I have manged to get TWRP to compile without errors for my device (ZTE Nubia Z11 Mini - NX529J).
I generated the mk files and the pre-built kernel by extracting the boot.img with dd and running mkvendor.sh on it.
I then fixed up the files manually until it compiled.
However, I can't get it to boot.
Code:
~/android/twrp $ sudo fastboot boot out/target/product/NX529J/recovery.img
downloading 'boot.img'...
OKAY [ 0.394s]
booting...
FAILED (remote: dtb not found)
What are dtb files and how do I generate them?
If I use this repo for my device it compiles and boots fine.
However, it has a dt.img and a mkbootimg.mk file that I don't have.
I don't see these files mentioned in the compile guide by @Dees_Troy or this other step by step guide.
What is dtb and how do I generate it?

Problem in installating magisk manager

Guys.. i rooted my mi a1 without disabling ita update and i have successfully unlocked the bootloader but i cant install magisk manager..it says file cant be extracted..any one help me to solve this plz..
- Device platform: arm64
- Extracting files
- Use boot image: /data/user_de/0/com.topjohnwu.magisk/install/boot.img
- Mounting /system, /vendor
- Device skip_initramfs detected
- Unpacking boot image
MagiskBoot v15.3(1531) (by topjohnwu) - Boot Image Modification Tool
Parsing boot image: [/data/user_de/0/com.topjohnwu.magisk/install/boot.img]
No boot image magic found!
! Unable to unpack boot image
Failed!
! Installation failed

Can't flash system.img in TWRP - E:Cannot flash images to file systems

I am trying to install a custom ROM on a Huawei P Smart FIG-LX1. I have a system.img that i should flash to the system partition.
So when i try to flash the image i have two system partitions:
Ona named "System" and one named "System Image".
If i try flashing it to the "System" partition i get this error:
Code:
[IMAGE FLASH STARTED]
Image to flash: '/external_sd/system.img'
Calculating restore details...
E:Cannot flash images to file systems
If this can help i have wiped the system partition containing the original ROM.
useless double posts
Can't flash system images in fastboot - FAILED (remote: 'sparse flash write failure')
Hi, i am trying to install a system.img to the system partition using fastboot using fastboot flash system C:\Users\user\Desktop\system.img but when i run the command i get this error: Sending sparse 'system' 1/7 (460796 KB) OKAY [...
forum.xda-developers.com
Size of image is larger than the target device in TWRP
Hi, I am trying to flash a system image in TWRP. When i try flashing the system.img to the System Image partiton i get this error: Size of image is larger than target device How can i solve this error? I tried the resize partition option on the...
forum.xda-developers.com

Can't flash system images in fastboot - FAILED (remote: 'sparse flash write failure')

Hi, i am trying to install a system.img to the system partition using fastboot using
Code:
fastboot flash system C:\Users\user\Desktop\system.img
but when i run the command i get this error:
Code:
Sending sparse 'system' 1/7 (460796 KB) OKAY [ 13.966s]
Writing 'system' FAILED (remote: 'sparse flash write failure')
fastboot: error: Command failed
i don't know if this is related to this other issue https://forum.xda-developers.com/t/...-cannot-flash-images-to-file-systems.4535981/
but i can't flash system images neither from recovery nor from fastboot (i have tried also other images).
it doesn't seem to be a memory issue because i have also used the -S option to split the image and it still doesn't work.
Help
Don't put your img file on desktop screen.Move the img file on the C drive and flash again with the right command.Hope it will be solved.
shaon121$ said:
Don't put your img file on desktop screen.Move the img file on the C drive and flash again with the right command.Hope it will be solved.
Click to expand...
Click to collapse
It still doesn't work as administrator and with the image in the C drive root.
Change your img file and try again..or download again... What is your phone model?
shaon121$ said:
Change your img file and try again..or download again... What is your phone model?
Click to expand...
Click to collapse
I have already tried different images, the phone is a Huawei P Smart FIG-LX1.
useless double posts
Can't flash system.img in TWRP - E:Cannot flash images to file systems
I am trying to install a custom ROM on a Huawei P Smart FIG-LX1. I have a system.img that i should flash to the system partition. So when i try to flash the image i have two system partitions: Ona named "System" and one named "System Image". If...
forum.xda-developers.com
Size of image is larger than the target device in TWRP
Hi, I am trying to flash a system image in TWRP. When i try flashing the system.img to the System Image partiton i get this error: Size of image is larger than target device How can i solve this error? I tried the resize partition option on the...
forum.xda-developers.com
slx23 said:
Hi, i am trying to install a system.img to the system partition using fastboot using
Code:
fastboot flash system C:\Users\user\Desktop\system.img
but when i run the command i get this error:
Code:
Sending sparse 'system' 1/7 (460796 KB) OKAY [ 13.966s]
Writing 'system' FAILED (remote: 'sparse flash write failure')
fastboot: error: Command failed
i don't know if this is related to this other issue https://forum.xda-developers.com/t/...-cannot-flash-images-to-file-systems.4535981/
but i can't flash system images neither from recovery nor from fastboot (i have tried also other images).
it doesn't seem to be a memory issue because i have also used the -S option to split the image and it still doesn't work.
Help
Click to expand...
Click to collapse
[Solved] Fastboot flash super error - FAILED (remote: 'failed to check sparse crc')
Hi, I'm getting an error trying to install stock rom from xiaomirom.com via fastboot. D:\Downloads\vili_eea_global_images_V12.5.21.0.RKDEUXM_20220224.0000.00_11.0_eea>fastboot flash super...
forum.xda-developers.com

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