I visited 3 stores looking for the pixels 7a. One of these stores (best buy) sells it at a 20% discount for only 2 weeks, brand new, 128 GB, so I may go for it to buy and nuke to install graphene OS, then relock it.
A poster suggested me to avoid verizon, because they lock the bootloader to prevent you installing anything else.
This one seems to be a pixels directly from google: on a table displaying other google devices and earbuds, but I wouldn’t want to buy something I cannot relock on non-stock software.
ETA: what port does it use for charging?
Just don’t get a carrier variant and you’ll be fine. You can also check for sure by putting the device’s IMEI into https://store.google.com/repair. For example, here’s what mine says: Pixel 6 Pro Stormy Black 128GB (Unlocked) (Pristine)
Why do you want to relock it?
More secure: any bootloader tampering happening via physical access to the device will trip the warning.
More compatible: some apps (banks usually) flag an unlocked bootloader as a security threat.
Thanks for answering!
I just picked up a 7a directly from Google, unlocked. That’s honestly the only way I recommend going about it, especially if the plan is to install Graphene.
USB-C for charging and data.
Do NOT relock a phone unless stock ROM is installed!
The system image signature will be different and you will brick your phone.
This is true for Samsung and Xiaomi, might not be true for Pixels, but I wouldn’t risk it.
Bootloader relocking is supported with an alternative OS on a Pixel. GrapheneOS supplies an avb custom key and they expect that you use their OS with a locked bootloader.