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[Q] How to remove / replace the boot logo?

OP xdadevel

12th November 2010, 10:22 PM   |  #1  
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I have already successfully removed the boot and shutdown animations (incl. sound) via "adb shell" commands:

Code:
su
mount -o remount,rw /dev/mtdblock3 /system
mv /system/media/bootani.qmg /system/media/_bootani.qmg
mv /system/media/samsungani.qmg /system/media/_samsungani.qmg
mv /system/media/video/shutdown/shutdown.qmg /system/media/video/shutdown/_shutdown.qmg
mv /system/media/audio/ui/PowerOff.wav /system/media/audio/ui/_PowerOff.wav
mv /system/etc/PowerOn.snd /system/etc/_PowerOn.snd
mv /system/etc/PowerOn.wav /system/etc/_PowerOn.wav
mount -o remount,ro /dev/mtdblock3 /system
exit
or just download the attached shell script and execute it as su:

adb push nobootani.sh /data/local/nobootani.sh
adb shell

Code:
su
cd /data/local
chmod 777 nobootani.sh
./nobootani.sh
exit
Btw the tablet now boots much faster.

But the boot splash screen from Samsung is still there.

EDIT:
I found out that the boot logo is actually a JPEG image located in the Secondary Bootloader (sbl.bin) on partitions bml4 and bml5 (both are identical on my Tab).

The partion layout seems to be the same as for the Galaxy S series:
http://forum.xda-developers.com/wiki...#Modifications
(here you can also find the secret codes to check firmware etc.)

This command gives the partition info:
cat /proc/LinuStoreIII/bmlinfo

To dump any partition (e.g. SBL) to SD card:
dd if=/dev/block/bml4 of=/sdcard/bml4_dump bs=1

I attached the extracted boot logo.
Attached Thumbnails
Click image for larger version

Name:	bml4_6_galaxy_tab_logo.jpg
Views:	494
Size:	20.2 KB
ID:	440872  
Attached Files
File Type: zip nobootani.zip - [Click for QR Code] (275 Bytes, 395 views)
Last edited by xdadevel; 22nd November 2010 at 09:58 PM.
The Following User Says Thank You to xdadevel For This Useful Post: [ View ]
13th November 2010, 12:43 AM   |  #2  
smithdc's Avatar
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Thanks xdadevel,

Followed your instructions above and it worked like a charm - my Tab boots up MUCH faster now.

I think to remove the Samsung boot logo you would have to edit something like init.rc in the bootimg, repackage it, and then copy it across.
Last edited by smithdc; 13th November 2010 at 01:50 PM.
13th November 2010, 09:14 AM   |  #3  
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Im trying to do this and get

Can not mount permission denied.

Failed for bootani.qmg, Read-only system file.

Any ideas?
13th November 2010, 12:19 PM   |  #4  
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Quote:
Originally Posted by xdadevel

I have already successfully removed the boot and shutdown animations (incl. sound) via "adb shell" commands:

Code:
su
mount -o remount,rw /dev/mtdblock3 /system
cd /system/media
rm bootani.qmg
rm samsungani.qmg
cd /system/media/video/shutdown
rm shutdown.qmg
cd /system/media/audio/ui
rm PowerOff.wav
cd /system/etc
rm PowerOn.snd
rm PowerOn.wav
mount -o remount,ro /dev/mtdblock3 /system
exit
Btw the tablet now boots much faster.

But the boot splash screen from Samsung is still there.

I've been reading about the methods for other Samsung devices, such as:
  • flashing a PDA tar with Odin
  • fastboot flash splash1
  • packing the logo png as an update.zip

None of these worked.
Instead I bricked my tablet and flashed "P1_20100909.pit" and "GT-P1000_P1000XXJK1.rar" (from samfirmware.com) to make it work again.

Very easy, thanks for the idea! I copied the files to my external SDcard just in case though... Maybe it would be nice for you to remind people of that. Cheers!
13th November 2010, 01:51 PM   |  #5  
smithdc's Avatar
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Quote:
Originally Posted by mklass

Im trying to do this and get

Can not mount permission denied.

Failed for bootani.qmg, Read-only system file.

Any ideas?

Have you rooted your phone?
13th November 2010, 02:13 PM   |  #6  
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Quote:
Originally Posted by smithdc

Have you rooted your phone?

Yes it is

Cheers
14th November 2010, 11:39 PM   |  #7  
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I hope this work on the US TMobile verison?

Sent from my Samsung Galaxy Tab
16th November 2010, 08:30 AM   |  #8  
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It does work on the U.S. TMobile tab, I tried it. to me it boots faster, but seems to shut down slower.
16th November 2010, 10:49 AM   |  #9  
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Thanks! I follow your instruction but instead of deleting, I just rename them with .old extension (maybe one day will need them.. who knows.. )

Now it boot much faster!!
16th November 2010, 08:19 PM   |  #10  
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Hi,

is there any way to replace the boot logo?

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