Why Can't I Use The Euro (€) Symbol In My Ssd Password?

In the pre-boot screen, your keyboard sends "scancodes" rather than text. A laptop with a European keyboard might send a different code for € than a US keyboard, making it impossible for the SSD to verify the password if you ever move the drive to a different machine. 3. Storage Limitations

Why? Because the BIOS/UEFI and the SSD firmware live in a pre-OS world that has no concept of multi-byte characters. why can't i use the euro (€) symbol in my ssd password?

Many SSD firmware implementations expect passwords to be a simple string of single-byte characters. When you introduce a multi-byte character, it can crash the input handler or simply truncate the password, making it impossible to match the stored hash. In the pre-boot screen, your keyboard sends "scancodes"

Here’s a deep, technical and practical breakdown of why you likely — and why this exposes a hidden tension between modern encryption standards, legacy boot chains, and character encoding. Storage Limitations Why