[Tutorial] How to change kernel logo (1st boot srceen) [COMPLETED] - Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A

We have 3 major works here... So I gonna to make it seperated
-1st post is HOW TO EXTRACT kernel.img (boot.img)
-2nd post is HOW TO CONVERT PICTURE FILE to BOOT.RLE
-3rd post is HOW TO REPACK THE KERNEL PAKAGE into boot.img
Requiredment
-Window machine
-installed cygwin
-the full boot.img/kernel (some kernel won't work because there is no full pakage/ i mean we can't)
-bootimg.zip (tool for UNPACK and REPACK kernel)
-boot_screen_logo_creation_package.rar
Thank and Credit
i- Credit to DooMLoRD Recognized Developer over most of XPERIA devices for his own tool and tutor that I learned before
ii- Credit to jimbo77 Senior Member for his tutorial that I used and learned and tool for unpack and repack
ii- Don't forget to give them a thanks meter
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Here we go
1-This section I will show u how to unpack and repack the boot.img
just see from original thread by jimbo77 from here and download the UNPACK and REPACK tool by him HERE
this is a fast guide from me:-
1-extract the bootimg-tools.zip into new folder (name it 'boot' folder)
2-move it into cygwin directory (cygwin/boot)
3- move your fav kernel into same directory
4-run cygwin.bat
cd /boot
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5-Now, unpack your boot.img by running the following command:
./extractboot boot.img
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If your output looks like this, then the extraction has worked correctly! Note that the Command Line string has also been read from the source file, this will be used later when you go to re-pack your file.
Your script folder should now look like this:
boot.img-kernel is the compiled kernel blob that was inside the source boot.img, if you want to replace the kernel with another compiled kernel image, you can replace this file with another one (but leave the file name the same)
boot.img-ramdisk.gz is the gzipped ramdisk image which has been split from the boot.img, you should leave this file alone.
The “out” folder contains the EXTRACTED ramdisk, and this is where you should make your changes to the ramdisk.
Important Note!
Remember, when editing files in the ramdisk through Windows, such as init.rc, Windows notepad will not format the files correctly, making them almost impossible to read, wheras Wordpad will LOOK like it is formatting the files correctly, if you save one of these files from the Wordpad application it will BREAK the file and it will no longer be able to be read correctly by Android. To edit these files you MUST use an editor such as Notepad++ which you can download for free.
AGAIN...
Special thanks/credit to jimbo77 for his excellent guide

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So.. NEXT step to change a kernel logo is here
Requiredment
1-a picture what are u like to look into the 1st boot screen (kernel logo) (make sure it size/resolution same your device resolution)
2-boot_screen_logo_creation_package.rar
3-some infos and knowledges here
4-window machine like i explained on 1st post
My quick guide
-extract the tool.rar
-move extracted files into new folder (name it 'rle' folder without quote)
-move into cygwin folder (to make it easy to follow my simple guide)
-copy your own logo.png (a picture u want to use on a kernel) into same rle folder
(for 4 steps above it shold look like tis)
-now launch cygwin.bat
cd /rle
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Click to collapse
./convert_image_to_rle.bat logo.png
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Click to collapse
Ah...my mistake..don't forget to move/copy/replace new logo.rle into
C/cygwin/boot/out/ramdisk/here
if you done good...follow next step on next post (to repack your moded kernel)

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Last step before you flash a new look kernel (boot.img) is
Repack your moded kernel
./packboot
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One thing to note that people may mention in other guides, is that when packing boot.img files, you will usually have to declare a base address, and a command line to the packaging tool. This set of scripts reads the existing command line and base address from the boot.img file you originally provided at the time of repacking, so always make sure you leave your original source boot.img file in the folder and do not re-name it after extraction, your newly created boot.img file will be named boot_new.img and will NOT overwrite the original.
Done! If your screen looks like the image above, then you should now have a freshly created boot_new.img file, ready to be flashed to Android for testing, you can now go ahead and flash it through FASTBOOT one thing I'll recommend though is to first do

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I need this for an extra (extra thanks maybe)
(may U?)

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great work man
:laugh:

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i got this eror what to do?

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Theliakos said:
i got this eror what to do?
Click to expand...
Click to collapse
run as administrator

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Thanks for this tutorial. But how about when the ramdisk is lzma? I tried changing commands from extractboot and packboot (from "gzip.... " to "lzma........." ) everything works well, the phone boots, but I don't have recovery mode anymore. In rest the kernel is perfect. But I need recovery mode, for installing things. I guess changing the command "gzip - or gunzip, whatever" to "lzma" is not all I have to modify. Any chance for a help?:crying:

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LaShto34 said:
Thanks for this tutorial. But how about when the ramdisk is lzma? I tried changing commands from extractboot and packboot (from "gzip.... " to "lzma........." ) everything works well, the phone boots, but I don't have recovery mode anymore. In rest the kernel is perfect. But I need recovery mode, for installing things. I guess changing the command "gzip - or gunzip, whatever" to "lzma" is not all I have to modify. Any chance for a help?:crying:
Click to expand...
Click to collapse
same problem

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Nice and awesome tutorial brother! :good::fingers-crossed::highfive:

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Deleted

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yamin8000 said:
same problem
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Click to collapse
Finally. I made it. For lzma ramdisks use this http://forum.xda-developers.com/showthread.php?t=1659584&highlight=lzma but I modified it to something like this (see attachment). All credits must go to the original developer, I only changed some "gzip -c" word to "lzma -dc". And I managed to modify any kernel with lzma compressed ramdisk. :good:

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LaShto34 said:
Finally. I made it. For lzma ramdisks use this http://forum.xda-developers.com/showthread.php?t=1659584&highlight=lzma but I modified it to something like this (see attachment). All credits must go to the original developer, I only changed some "gzip -c" word to "lzma -dc". And I managed to modify any kernel with lzma compressed ramdisk. :good:
Click to expand...
Click to collapse
So all the step is the same with the one on the OP except we need to change gzip -c into lzma -dc?
Sent from my ST15i using xda premium

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Singgih4050 said:
So all the step is the same with the one on the OP except we need to change gzip -c into lzma -dc?
Click to expand...
Click to collapse
Yes, but unfortunately it doesn't work with this tutorial (at least for me, because I lost recovery - In rest the kernel behaves normal, but we all need cwm recovery). It only fully works (again, for me) with that modified version of android kernel kitchen 0.3.1.

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Will this method work with LOCKED bootloader?
mine can't be unlocked

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No it will not working because this is tutorial about to change a kerenl bootlogo (Sony Ericsson) word on startup phone..
Your phone cant be unlocked and no chance to change/flash custom kernel with custom bootlogo.
GSUKeitarou said:
Will this method work with LOCKED bootloader?
mine can't be unlocked
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---------- Post added at 03:46 AM ---------- Previous post was at 03:45 AM ----------
Good job mate :good:
works for me after i edit bootlogo for Xperia play kernel by doomlord and i managed to enter cwm
LaShto34 said:
Finally. I made it. For lzma ramdisks use this http://forum.xda-developers.com/showthread.php?t=1659584&highlight=lzma but I modified it to something like this (see attachment). All credits must go to the original developer, I only changed some "gzip -c" word to "lzma -dc". And I managed to modify any kernel with lzma compressed ramdisk. :good:
Click to expand...
Click to collapse

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thanks for the guide:fingers-crossed:

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Al ok but phone not booting after bootlogo changed!!!!

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Code:
[email protected] /boot
$ ./extractboot boot.img
Page size: 2048 (0x00000800)
Kernel size: 5920144 (0x005a5590)
Ramdisk size: 4617107 (0x00467393)
Second size: 0 (0x00000000)
Board name:
Command line: androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x3F ehci-h
cd.park=3 vmalloc=400M androidboot.emmc=true
Writing boot.img-kernel ... complete.
Writing boot.img-ramdisk.gz ... complete.
13874 blocks
[email protected] /boot
$ ./packboot
Using base address 0x80200000
Using command line 'androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x3F
ehci-hcd.park=3 vmalloc=400M androidboot.emmc=true'
[email protected] /boot
$
Whas is my erros?? My phone can't booting after flash boot.img (new), i don't change bootlogo, only unpack and repack .Thank for help
But now WORK when i change with android kitchen =))

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I've been getting this error. I'm already run as administrator. What's the problem?