[Q] How to UNPACK and then REPACK StockFirmware.tar.md5 - Android Q&A, Help & Troubleshooting

Hi. I have a device which nobody has rooted yet (SM-A300F running 5.0.2) and I have read somewhere that it is possible to edit the StockFIrmware.tar.md5 file so that it already has root access (SuperSU,busybox,su)
So how do I do it? I already extracted my recovery.img and boot.img and I have no idea what to do.
Can somebody please guide me.

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[Q] How to extract bootloader from stock official

Hi
I have searched the forum but not found any results related to this.
Is there any way to extract BOOTLOADER from stock official ROMs? and what should we do to extract it?
edit: i opened the official rom with winrar, and see some files there, which ones should be extracted and be used as bootloader?
tz.img or sboot.bin?
or both of them?
Thanks

[Q] I need help ! About the boot.img

My Vibrant has some problem so i must edit init.rc in boot.img. I try my best to unpack the boot.img form CM10.1 but the tools tell me:Android Magic not found in cm7.img. Giving up.Oh my god!What should I do?Or who can help me unpack the boot.img?Please,I need your help!
(Please forgive my poor English~):crying:

[Q] Need some help with modifing kernel

Hello,
I'm not sure if this is just a dumb noob question or not,
but if i unpack my boot.img file from my moto g, using android kitchen (cygwin) and if i repack it again, without modifying anything, the size of my kernel goes from 10MB to 6MB, and the created boot.img can't be used anymore.
Does anybody have an idea what i do wrong? I need this to port a kernel (replace bootclasspath)
Thank you in advance!

Extracting Framework Folder

Hello,
How to extract framework folder from zip files of custom ROM and stock ROM.
I cant find anything related to this on google, maybe it is too trivial , but I cant find any good steps.
Please provide steps .
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Help with creating a custom rom[modifying system.img etc]

Hello there,
I am new here and I would like to modify system.img for my phone which is XIAOMI MI A2
i can't really find any way to do that,some posts are too old,and others I understand nothing:silly:
First of all I would like to know if there is any tool available for modifying .img files
I would also appreciate if you guys could explain me how that works,I mean I just unpack and repack the image file and done,I can just flash it with TWRP?
:fingers-crossed::fingers-crossed::fingers-crossed:
Thanks in advance ?

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