Comment 16 for bug 1379412

Letting you use a phone without unlocking the SIM(s) is deliberate, on the grounds that it is still as useful as an iPod Touch. If people expect locking the SIM(s) to lock the phone as a whole, that would be a security problem, but as far as I know we don't have any evidence of that.

Alfonso torpedoes my re-run proposal by pointing out that if you have chosen a data SIM manually, you don't want that choice to change without permission. When I designed (2) "Auto switch to avoid roaming", I did not assume that people ever "buy a phone somewhere that results in the phone roaming", but rather that a common use case for dual SIM will be when you travel frequently between two countries, with one SIM native to each. If *that* isn't common, I could remove it from the design. Meanwhile, though, it implies that the data SIM selection won't automatically change otherwise; if it did that would be surprising.

Nevertheless, If adding a step to the first-run setup isn't acceptable (I agree it isn't), and defaulting to no data isn't acceptable, then we still need some method of choosing the data SIM automatically in the first place. We still (1) shouldn't choose one that is locked, and (4) shouldn't choose one on 2G if the other is on 3G.

"As we don't prompt for SIM PINs during the wizard, one or both SIMs could be locked. This could leave us with no SIM selected, unless we run the algorithm everytime a SIM is unlocked as you suggest."

If one or both SIMs are locked, on first run you get the setup, then the greeter, then the SIM unlock prompt(s), then the tutorial. <http://goo.gl/6Y7Hxb> If both are locked, the algorithm doesn't need to run after each unlock prompt, just after they have both finished.