I have no idea
I created this script two months ago and now I almost forget how it works.
Maybe I can figure out what's wrong later if you upload your bmp somewhere.

No. problem...

Here you go.

See attachement.

Regards,

J4ZZ

Hello, J4ZZ. Can i look your usb icon?
I just tried cut off headers from your "2.bmp" and "3.bmp" with ffmpeg and all works fine
About usb icon: you can't flash it with hxka's script - use FAQ.

Yep, the problem is in different header. I resaved files in GIMP and they was recognised by script fine. I'll update script later today.

That's raandoom's fault (:
In command echo -ne '\x3С' | dd of=secondary.bin bs=1 seek=33584 conv=notrunc he wrote cyrillic 'С', not latin 'C'.

raandoom, you should correct your posts both here and on meegos.ru (:

FAQ corrected.
hxka, thanks! I am very sorry. I will be more careful in next time

This FAQ about how you can use images with custom width and height in NOLO.
* Remember about size limits (in bytes) for compressed images. You can read about it in previous FAQs.

I am already wrote how to compress images, that's why here I try briefly show how correctly patch 'secondary' with your custom-size images

If you decided to use some icon with custom size and some icon with standart size - you must use THIS FAQ for both images, NOT previous. Because instructions and addresses from this FAQ intersect with addresses from older FAQs, that's why using of all FAQs together can lead to bad results

At this moment this FAQ is universal for all images. You can consider it as the Main FAQ and use only its But dont forget about previous: maybe you can find some additional information there.

1. Boot logo:
a) This commands are required:
b) Flashing logo to 'secondary':
c) Specify parameters of used image: size of compressed image (in bytes), width and height:
Size (must be less than 6646 bytes). In this example used size equal to 6646 bytes -> 0x19F6 bytes -> '\xF6\x19'
Width. In this example used size equal to 486 pixels -> 0x1E6 pixels -> '\xE6\x01'
Height. In this example used size equal to 138 pixels -> 0x8A pixels -> '\x8A\x00'
2. Background color:
a) This commands are required:
b) Of course, the color (in example used black color, #0000):
A little help for select the right color:
You can use a color value from 16-bit pallete only (rgb565, 65536 colors). You must reverse color bytes and duplicate them in commamd. Example:
0xF800 is RED, it is mean '\x00\xF8\x00\xF8'
0x07E0 is GREEN, it is mean '\xE0\x07\xE0\x07'
0x001F is BLUE, it is mean '\x1F\x00\x1F\x00'

3. USB icon:
a) Flashing compressed icon to 'secondary':
b) Specify parameters of used image: size of compressed image (in bytes), width and height:

Size (must be less than 1089 bytes). In this example used size equal to 1089 bytes -> 0x441 bytes -> '\x40\xF2\x41\x46'
* Please note, a more intuitive explanation: let assume that the size of your compressed icon in hex is 0xXYZ, this mean that bytes for patching must be looks like '\x40\xF2\xYZ\xX6'
Width. In this example used size equal to 102 pixels -> 0x66 pixels -> '\x66'
Height. In this example used size equal to 44 pixels -> 0x2С pixels -> '\x2С\x21'
c) Optional! For those who don't like white square after the disappearance of USB icon.
If you never noticed this square, then you probably do not need that
I dont use this and dont test it, but it must work. In example used black color.
And as you can see, there is only one byte for color. It is mean that if you write '\xAA' - the color of square will be 0xAAAA. That not so much color, there is more than nothing

4. R&D icon:
a) Flashing compressed icon to 'secondary':
b) Specify parameters of used image: size of compressed image (in bytes), width and height:

Size (must be less than 3954 bytes).
* Attention, how build correct string of bytes for patching:
Template string: '\x40\xFk\xYZ\xX6'
k - must have value 2 or 6. Depends on size of compressed icon.
k = 2, if size of your compressed icon less tnan 0x800 bytes (size < 2048 bytes). Further, use XYZ values like in paragraph 3b.
k = 6, if size of your compressed icon more than or equal to 0x800 bytes (size >= 2048 bytes). In this case, value 0x800 will be added to your XYZ value.
Example: size = 2753 bytes = 0xAC1 bytes = (0x800 + 0x2C1) bytes => k=6 => '\x40\xF6\xC1\x26'
Width. In this example used size equal to 64 pixels -> 0x40 pixels -> '\x40'
Height. In this example used size equal to 54 pixels -> 0x36 pixels -> '\x36'
That's all. Sorry, if something is hard to understand Ask questions - i will try to help.

Wow, that's just brilliant. Thanks for updating the guide and for fixing the little error.

Best regards,

J4ZZ

There is a x86 and x64 versions of logo_compress.elf (v.1.1). My test logos compressed with them are correct. Try it.

Well, this is a little embarrassing.. I couldn't get the "logo.bin" sized down to 6646 bytes. I tried many ways to do it.
If anyone nice there could you convert the attached image into the required size please??

Much thanks.