Need info about 'Download mode".

[manoli337]

My device: Galaxy S9+ 64GB (SM-G965W)

When the user enters in download mode by simultaneously holding the power button + volume down + bixby, the page shows me RPMB fuse blown.

Does anyone know what is that fuse and what it does and how to replace it ? 


Thanks a lot ! 🙂

[CHMultimedia]

That's normal. Every recent Samsung shows that. Can't replace it.

Though it's purpose seems unknown. Maybe it means the device has been used (not brand-new) and the warranty has begun?

[CHMultimedia]

Ah no, seems RPMB stands for Replay Protected Memory Block. A secure space. Its key can only be rewritten once (Fuse blown)

More reading:
https://security.stackexchange.com/questions/166182/how-to-access-replay-protected-memory-block-rpmb-in-emmc

[manoli337]

Okay thanks! Should I worry ?

[Shaggyskunk1BLM]

No.

[Moderator_]

Hey @manoli337,

Like everyone else stated in this thread, the RPMB fuse error message is a common issue. Although this shouldn't affect the normal operation of your S9+, I'll report this issue to see if it can be fixed 😊

Cheers,
Sabrina

[manoli337]

Oh thanks a lot ! 😊

[steve2458]

your waranty is void

[manoli337]

How can it be void?

[steve2458]

because the fuse as the function of telling samsung waranty if the recovery is flashed or the mobile is rooted or was but if samsung is smart they supose to know snapdragon processor are impossible to root! so i hope its a samsung defect...