Using unionjack's instructions, I just changed my splash screen to this.
If you have already upgraded to V29.1 and now want to add your own custom splash screen or make other changes, you can make a custom release of the SW so that your car will upgrade to include your new changes. Also from our friends over at X5world are the quick and easy instructions.
Quote:
Alternatively you can upgrade to your "custom" version by branding it to a number higher than 29.1: hex-edit files lng_rel.tbl and sw_rel.tbl in \V_2\RR\0101\BMWC01S. The first four bytes "0910" indicate the software version (29.10). You can simply edit the fourth byte to brand your custom version as 29.11.
These are binary files. Do not use but hex-editors with them.
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