I am aiming to purchase a suitable pixel 4a to install GrapheneOS
but I am having trouble finding one with unlockable bootloader.
I'd wager that people on this forum may be more informed about which models are more or less likely to have that option available.
(Yes, I know 4a is on it's last leg and newer models are strongly encouraged. But 4a is a last small pixel with a jack and I am willing to compromise)
Basically when looking through the similar topics on this and other forums there are a few
takeaways when it comes to estimating chances of unlockable bootloader:
- Verizon version: basically 0% chance, distributed most probably as part of G025J line
- Not all G025J (US region) are non-unlockable - there are reports of many being fine
- IMEI that starts with 35 is supposedly less likely to be unlockable
- IMEI that starts with 99 is supposedly more likely to be unlockable
The question is are there any other indications?
I for example got a G025J from a Canadian distribution but it was not unlockable and I had to return it. (Tried updating, tried with or without internet, 2 different internet providers, with/without SIM, 2 sim operators, one from EU, one from Japan, waiting for a day: basically nothing worked and the "OEM unlocking" option stayed greyed-out)
There are for example G025N international models. Are there any indicators that would make some of them more or less likely to be unlockable? Counties of origin? IMEI numbers? Other markings on a box?, etc.
Anything That I could ask a seller short of unpacking , going through setup, connecting to the internet and checking in the dev options...