i want to install grapheneos on my pixel 6a but i have a few questions first:
#1: i cant enable oem unlocking because its "unavailable on carrier locked devices". grapheneos said that i need to "...update it to the June 2022 release or later via an over-the-air update. After you've updated it you'll also need to factory reset the device to fix OEM unlocking.". how can i do that?
#2: can i double click the power button to open the camera? i use it a lot and really like it.
#3: can i use rcs messaging? i would guess i would just need to install the google messages app.
#4: does google messages for web work with grapheneos?