Hex editing boot image

[Jakemate]

Hello all, very nice forum indeed and I've been reading a lot and trying to figure out how to change a boot screen !

I can change bootanimation and also initlogo no problem but I'm trying to figure out how to change the boot screen on a custom rom to my own liking, a picture of our dog no less

I have been informed that it may be in the boot.img or kernel, and that I would need to hex edit (patch) the image in but am unsure of how to do this, I have opened the kernel in a hex editor but theres no indication of any images.

Has anyone successfully managed this ?

Thank you in advance

[900supersport]

my kitchen supports this on most of the current kernels. I'll see about posting some instructions for preparing the graphics files.

[SpicySaturdayBoy]

Hello all, very nice forum indeed and I've been reading a lot and trying to figure out how to change a boot screen !

I can change bootanimation and also initlogo no problem but I'm trying to figure out how to change the boot screen on a custom rom to my own liking, a picture of our dog no less

I have been informed that it may be in the boot.img or kernel, and that I would need to hex edit (patch) the image in but am unsure of how to do this, I have opened the kernel in a hex editor but theres no indication of any images.

Has anyone successfully managed this ?

Thank you in advance

You should try this Factory Firmware Tool. This one is easy for window users.

http://www.freaktab.com/showthread.php?8425-Firmware-Factory-Tool-V3-4-Boot-logo-amp-Animation-changer-etc-tool-for-Window

[Jakemate]

my kitchen supports this on most of the current kernels. I'll see about posting some instructions for preparing the graphics files.

Wow, thats a quick reply
Thanks, that would be ace.... I see it's for linux !
I have ubuntu installed, use it for creating images for my satellite receiver so I'm ok with linux but if it's for windows thats not really an issue.
I look forward to having a play

You should try this Factory Firmware Tool. This one is easy for window users.
http://www.freaktab.com/showthread.p...ool-for-Window

Awesome, I'll have a look now, thanks guys

[Jakemate]

You should try this Factory Firmware Tool. This one is easy for window users.
http://www.freaktab.com/showthread.p...ool-for-Window

Just had a look bud but I'm looking to mod boot screen that is found in the kernel and not the initlogo in boot.img.

Thanks anyway, the software does work for the images you mention in the post so I'll keep a copy of it alongside all the other programs

[Jakemate]

Ok I've got the kitchen all setup and working
Just need some guidance on the image types and files and where I need to put them in order for the kitchen to patch the kernel

Lovely piece of software !

[900supersport]

Ok if the kitchen tells you the size of the image you should be good to go

Preparing the image file.
Once you know the image size you require, create an appropriate png and then in the words of Finless Bob

First this is a handy tool to have. It converts a PNG to CLUT data.
This will work in windows as it uses CGI-Win dll's. But the scripts inhere should also work in Linux.

https://docs.google.com/file/d/0B9BF...RNb3BDaGM/edit

What you do is drag and drop your PNG onto the .bat file and it will convert the PNG to many files.
Of these files we only need:
logo_clut
logo_data

Just a quick note of thanks to Finless who gave me the information required to script this.

drop the two files into local deploy and from the kernel menu select brand

[Jakemate]

Ok I tried branding the kernel but I'm running around in circles now.

My image is the exoon power pro that is originally by lewis I beleive.

The two images I am trying to change are the two boot screens when booting into 1080p and 720p mode.

There are four .img files whithin system/preinstall that I think may be the files in question.

1080p.img 720p.img

b1080p.img b720p.img

I think it may be b1080p and b720p but then again I might be completely wrong.

This forum has taught me so much up to now, I'm getting even more eager to learn more but sometimes reading for hours on the net can confuse me from conflicting advice.

Thank you for your help so far

[900supersport]

Just to be clear about boot images, we have the following that display in this order

1. there is an image within the kernel, the brand option of my kitchen will replace this if you put the prepared image files into the localdeploy folder.
2. there is an image (initlogo.rle) within boot.img, my kitchen will unpack, allow changes including replacing initlogo.rle, and re-pack boot.img
3. There is a boot animation in system.img, see system/media/bootanimation.zip. On some ROMs I've seen bootanimation_0.zip and bootanimation_1.zip. To get around this I place my animation in bootanimation.zip and create symlinks to it called bootanimation_0.zip and bootanimation_1.zip.

Hope this helps

[Jakemate]

Yes I sort of understand that but this image seems to work differently somehow.

On first boot I get the image that I have replaced in initboot.rle in the boot.img

I then get the bootanimation that I have replaced on system/media

In the system settings I can switch resolution to 1080p or 720p, on selecting one of these the box reboots into 720p or 1020p respectivly.

Problem is the boot screen then displays an image with booting into 720p or an image saying booting into 1020p

I dont know where these are kept or how to modify them, I have tried numerous times to try to identify images with a hex editor, I have rebranded the kernel.img with your kitchen to no avail so I'm wondering where these other 2 boot images are kept ?

Sorry for the confusion

[900supersport]

what ROM is it you are looking at, you could try asking the dev

[Jakemate]

It's the exoon power pro rom that Walter adapted from Lewis custom rom for the kr-42

I have asked but I don't like hassling individuals which is why I've posted in the open forum so it might help other members also.

[Nana111]

HI there
For me ,it is difficult for me to edit or moderate image files without an image tool
So i just want to know that if there is any fine image SDK which supports to do that
directly.I know there are many kinds of tool for image processing .But i want to get a free trail
Thanks for any suggestions.