I just checked a cellular state of my phone and got:

adb shell dumpsys telephony.registry | grep mServiceState | grep -o "mDataRegState=[()0-9A-Z_]*"

mDataRegState=1(OUT_OF_SERVICE)

On ServiceState desc I see:

State is:

STATE_OUT_OF_SERVICE
Added in API level 1

public static final int STATE_OUT_OF_SERVICE

Phone is not registered with any operator, the phone can be currently searching a new operator to register to, or not searching to registration at all, or registration is denied, or radio signal is not available.

Constant Value: 1 (0x00000001)

But must be:

STATE_POWER_OFF
Added in API level 1

public static final int STATE_POWER_OFF

Radio of telephony is explicitly powered off.

Constant Value: 3 (0x00000003)

So it not fully turned off. But in GOS site we see next:

Activating airplane mode will fully disable the cellular radio transmit and receive capabilities, which will prevent your phone from being reached from the cellular network and stop your carrier (and anyone impersonating them to you) from tracking the device via the cellular radio.
Enabling airplane mode disables the cellular radio, but Wi-Fi can be re-enabled and used without activating the cellular radio again.

How to fully disable cellular? It's not true or I'm wrong? Thank you.

    • [deleted]

    • Post #2
    • Edited

    lasidete when I run the command you mentioned with airplane mode toggled on, I get this as output on Pixel 6:

    mDataRegState=1(OUT_OF_SERVICE)
    mDataRegState=3(POWER_OFF)

    And with airplane mode toggled off:

    mDataRegState=1(OUT_OF_SERVICE)
    mDataRegState=0(IN_SERVICE)

        • [deleted]

        • Post #3

        [deleted] Maybe the Original poster needs to verify whether their OS is compromised or not via Auditor?

          3 months later

          ./adb shell dumpsys telephony.registry | grep mServiceState | grep -o "mDataRegState=[()0-9A-Z_]*"
          And I got:
          mDataRegState=0(IN_SERVICE)

          Airplane mode is turned on. In ##4636## Mobile Radio Power is OFF but why IN_SERVICE. Any comments on this? I have valid installation of GOS. Device have valid hash and verified with my Pixel 6 Pro via Auditor app too.

            secure_adict Do you know if the esim will show IN_SERVICE on when the device is in airplane mode?

              • [deleted]

              • Post #8

              secure_adict I do not use GrapheneOS or even an Pixel.