Openmoko Bug #1735: [u-boot] get different screen.

Openmoko Public Trac bugs at
Tue Aug 19 02:30:38 CEST 2008

#1735: [u-boot] get different screen.
    Reporter:  regina_kim       |        Owner:  werner at
        Type:  defect           |       Status:  new                
    Priority:  normal           |    Milestone:  Om2008.8           
   Component:  System Software  |      Version:  GTA02v5            
    Severity:  major            |   Resolution:                     
    Keywords:  boot screen      |    Blockedby:                     
Reproducible:                   |     Blocking:                     

Comment(by werner):

 So you want a means to replace the splash screen image on the devices in
 field ? For this, you need to convert the PNG file to a compressed raw
 buffer content and then flash this into the splash screen partition.

 For the conversion, go to and run
 ./ boot_image.png | gzip -9 >new_splash.gz

 If your update process runs under Linux (OE package ?) you'd then execute
 the following commands:

 flash_eraseall /dev/mtd4
 nandwrite -p /dev/mtd4 new_splash.gz

 If you update through DFU, you would:

 dfu-util -a splash -R -D new_splash.gz

 Note that there's also a copy of the image in the package the factory
 You'll want to change that one as well.

 Note the NOR also contains a copy of the splash screen. If you generate a
 new NOR image with "mknor", just specify the new image with -s
 and it will put the "openmoko" text near the bottom of the screen.

Ticket URL: <> <>
openmoko trac

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