How to Customize T400 Power-on-Password Screen?

[hunterman223]

I have recently customized my boot-splash with my contact details and I would like to do the same thing to the password & fingerprint prompt. I can't find anything with google on how to do this, but it was mentioned to me in another thread. I spent an hour or so picking through the decompressed ROMs of the BIOS, but I really had no idea what to look for and gave up. (Used IDA and Phoenix BIOS Editor)

Any word on how to accomplish this?

[Colonel O'Neill]

I'm pretty sure it doesn't load an image for the password prompt screens. Also pretty sure you won't find space in the ROM to shim in text output.

I can offer you this though:
http://www.coderforlife.com/projects/win7boot/

I turned a Rick Astley GIF into the boot splash once, but I can't find it anymore.

[hunterman223]

Thanks for the link, but if I lost my laptop and someone turned it on, they wouldn't get past the PoP & Fingerprint Prompt, or the BitLocker PIN prompt.

I have no idea how to go about doing it, but in another thread someone mentioned that they had done it in a corporate environment (IIRC) but they couldn't share the tools used due to copyright concerns of whatever files and software was involved.