[Google Pixel 6 Pro] AndroidHelpMe:
I am looking to install GrapheneOS on my Google Pixel 6 Pro. I can't activate the OEM Unlock toggle in Developer Options. It states to "Connect to Internet or contact your carrier." Here is what I have tried so far...

Made sure phone was on latest OTA software version...

Model Google Pixel 6 Pro

Serial Number (Available If Servicing)

Hardware Version MP1.0

Android Version 13

Security Update August 3, 2023

Google Play System Update February 1, 2023

Baseband Version g5123b-116954-230511-B-10112789

Kernal Version 5.10.157-android13-4-00003-g776d0a76f6aa-ab10208116#1 Thursday May 25, 2023

Build Number TQ3A.230805.001

IMEI (Available Upon Servicing)

IMEI SV 60

Network Koodo

Mobile Number State Connected

Service State In Service

Mobile Network Voice Type LTE

Mobile Network Data Type LTE

Roaming Not Roaming

Made sure all apps updated with Google Play store and signed.

Factory reset the phone without a Sim card and completed setup without WiFi. Inserted Sim with data active. Activated Developer Options and OEM Unlocking still greyed out.

Performed the Google Check In *#*#CHECKIN#*# (*#*#2432546#*#) and recieved "success" notification message.

Factory reset the phone again, this time with no sim and only WiFi. Same greyed out.

Factory reset the phone. Turned on Developer Options. Then turned on USB Debugging. Installed full Android Studio Giraffe 2022.3.1 Patch 1 on my Windows 10 PC. Also installed latest Android USB Drivers. I downloaded and extracted the Android Platform Tools Zip version r34.0.4-windows July 2023. Connected phone to PC with genuine Samsung USB C to USB C cable 6'.

Windows Device Manager shows the phone under Portable Devices as Pixel 6 Pro and if I put phone in fastboot mode it shows under Android Device as Android Bootloader Interface.

I ran command line "fastboot devices" and it shows the phone listed:

19291FDEE00CQC fastboot

I ran command line "adb devices" and the device list is empty.

Phone Fastboot Mode shows:

Product Revision: Raven MP1.0

Bootloader Version: slider-1.2-9883526

Secure Boot: PRODUCTION

NOS Production: Yes

DRAM: 128GB Micron LPDDR5

UFS: 256GB Kioxia

Device State: Locked (Green)

Boot Slot: a

UART: Disabled

I went to Google's website with unmodified chrome, no extensions or ad blocks. Using theirs flash the firmware (with what I belive is the Stock ROM) it found the device but failed with OEM Unlock not active error.

I put phone into Recovery Mode and tried to sideload an image from ADB. FW_RT_AC68U_300438651665

This instantly failed with error:

Supported API: 3

Finding update package...

Verifying update package...

ERROR: recovery; footer is wrong

Update package verification took 0.2 s (result 1)

ERROR: recovery; Signature verification failed

ERROR: recovery; error: 21

Install from ADB completed with status 2.

Installation aborted.

I ran an IMEI checker with sickw device checker website. It shows it may be a Verizon variant even though I'm in Canada. I had bought it second hand. No where in the phone does it show Verizon. Apps, logo or model number. I know these check tools can sometimes be false but I found this site to be pretty good most times.

Results:

PIXEL 6 PRO STROMY BLACK 256GB VZW

Model Name: Pixel 6 Pro (256GB Stormy Black US VZW)

Model Number: GA02231-US

IMEI: (HIDDEN)

Serial: (HIDDEN)

Purchase Country: United States

Warranty Status: Expired

Warranty Start Date: 16 November 2020

Warranty End Date: 17 November 2021

Device Age: 2 Years, 9 Months, 24 Days

So now I'm stuck trying to unlock the bootloader. Any advice would be appreciated. I can pay for any working solutions. I have remote desktop software and am tech savvy to a point. I am thinking this is carrier locked direct BUT I have seen some very complex flashing tools out there that may be able to work. They are beyond what I have experience with and I fear I would brick the device. Hopefully I came to the right place and can help others.

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