Quote:
Originally Posted by Andyb123
What about the Mk3's can they be altered I hate the BMW splash screen, would love the Rover one.
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Hi Andy - I believe they can but it is apparently a lot fiddlier. I have yet to find any definitive instructions or differences from the MK4 process.
For the record this is the process I used (unashamedly plagiarised from some other forum)
Updating Mk4 Nav Splash Screens
You need a couple of applications to get this working. (These are not the only ones you can use; it’s the ones I use, that’s all).
1: Navtweak (
http://rapidshare.com/files/8925524/navtweak.zip.html ) Free
2: imgburn (
http://tinyurl.com/8t63v ) Free
3: UltraIso (
http://tinyurl.com/2gxxp ) Shareware
You can use other apps for 2 and 3, but you need Navtweak.
To run Navtweak you also need to load the GTK+/WIN32 Runtime Environment (
http://gladewin32.sourceforge.net/ )
You also need a firmware image (
http://tinyurl.com/25w99h ) Free, this one is V29.1
Once you have downloaded the files, unzip them (using winzip or similar) into a sub-dir on your pc.
This next bit sounds complicated, but is straight forward.
1: unzip the v29.1 image to a sub dir on your PC
2: install and open UltraIso, open UltraIso and navigate to /V_2/RR/0101/BMWC01S/app_sw then drag and drop the navboot file onto the desktop.
3: install and open navtweak, then open the navboot file into navtweak.
4: select the images tab, then the rombitmaps tab, and then scroll down to #14 and the right click and replace the image (with a one you downloaded and kept on your desktop).
5: save the navboot file (after making a copy of the original, just in case)
6: drag and drop the modded navboot file back into the open UltraIso image and overwrite the old navboot file with the modded one.
7: save the UltraIso (file, save as) and call it v29-modded.iso
8: install and open imgburn, open the v29-modded.iso file and place a blank CD in your DVD writer, then write at x1 speed only
9: follow the update procedure for upgrading the Nav computer.
Job done
The nav unit doesn't allow it to "update" with the same software as already installed.
So you already have v29 (or v30) installed then you can downgrade to v28 then back up again. (That’s the simple way)
OR
You have to fake the SoftwareVersion.
Do the following: also extract the 2 .tbl files from the directory:
:\V_2\RR\0101\BMWC01S
Open it in an HEX editor (like Freeware, PSPad
http://www.pspad.com/en/)
In the first line you find: 30 39 31 30 This means: 0800 So: Software-Version 08.00, Just edit the last 30 to 31 and you nav unit will think it's a new Software Version and you can update your V29 without prior downgrade to V28
The next time you update, you can edit it back to 0800 then 0801 again...
Save the UltraIso image as v29.iso, then burn a CD at 1x speed.
and that’s it.”