(I know this doesn't really help you now, but) If you install your self-representing operating system as part of setting up a new phone, then you don't end up i

(I know this doesn't really help you now, but) If you install your self-representing operating system as part of setting up a new phone, then you don't end up in a situation where it's some huge disruptive undertaking. Also doing so within the purchase return period assures that your phone can definitely be unlocked, rather than finding out otherwise when it's too late.