Hello,
Hp logon was customize in mainboard and HackBGRT is used to change that . But as it showed in github :
The original logo is often visible for a moment before HackBGRT is started. This is expected, please do not report this "bug". This can't be changed without modifying computer firmware, which this project will not do.
And we don't have a easy way / quick start to change the logo. If you are still interested on changing the logo , you can read this official link from github and you will get more details:
https://github.com/Metabolix/HackBGRT
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