Good day.

Here is a recent version of GrapheneOS for the Google Pixel 6a cellular telephone:

I have such a phone. It has a "volume-down" screen which currently reports:

Start

Press the Volume keys
to select different menu

!
Fastboot Mode
Product revision: bluejay MP1.0
Bootloader version: bluejay-1.2-8893284
Baseband version: g5123b-102852-220720-B-8851166
Serial number: <REDACTED_FOR_POST>
Secure boot: PRODUCTION
NOS production: yes
DRAM: 6GB Micron LPDDR5
UFS: 128GB SKHynix
Device state: unlocked
Boot slot: b
Enter reason: vol down pressed
UART: disabled

If I apply the aforementioned version of GrapheneOS, might I expect any of these "volume-down" screen's details to change?

For example, I've read about "anti-rollback protection." An example Reddit discussion is here:

Might the application of this GrapheneOS version result in some process which might update the version(s) of one or more early (before the GrapheneOS Linux kernel is booted) components, such as boot-loader or "fasboot mode?"

Also, does the answer depend upon any of these?:

  • Whether or not the resulting GrapheneOS has an Internet connection
  • Whether or not the resulting GrapheneOS has automatic updates enabled

Thank you for your kind consideration.

    sha0 the firmware versions could change, serial numbers and specs, not so much.

    Updates on GOS could update the firmware, yeah

      sha0 If I apply the aforementioned version of GrapheneOS, might I expect any of these "volume-down" screen's details to change?

      Yes.

      For example, my Bootloader version is bluejay-15.1-12292109.

      sha0 Might the application of this GrapheneOS version result in some process which might update the version(s) of one or more early (before the GrapheneOS Linux kernel is booted) components, such as boot-loader or "fasboot mode?"

      Again, yes (I think the questions are the same).

      sha0 Also, does the answer depend upon any of these?:

      • Whether or not the resulting GrapheneOS has an Internet connection
      • Whether or not the resulting GrapheneOS has automatic updates enabled

      I don't think so. I believe each GrapheneOS system image contains any appropriate firmware updates. In general these blob updates are "best practice", but in some cases a given OS release requires some firmware support. And with some frequency a firmware update patches a bug.

            sha0 P.S. I am not sure that the inventory on the bootloader screen is exhaustive, e.g., it doesn't seem to show the firmware version on the secure element.