=bvone21;2844338]I'm debating making a switch from AT&T To Cricket and buying the phone outright. It just makes sense as they're the same service, and it will be cheaper long term.
How do the windows phone updates work? Those are controlled by carrier, correct? Since AT&T owns Cricket, do they run off the same testing/update cadence? Or will AT&T likely have better support for new firmware / OS releases?
I use Cricket and the monetary cost is definitely cheaper, but that decreased cost does come with some trade-offs. I feel that I should warn you that what you are proposing could cause you some problems.
First, it appears that the inherent capability for visual voicemail on Lumias using Cricket doesn't function unless the phones have Cricket-specific firmware. I use a
third-party workaround solution to this problem*, but it's less than ideal since VVM should work natively.
Secondly, yes, over-the-air software upgrades are controlled by the carriers in the US. The upgrade situation with Cricket seems quite suspect and it is separate from the process through AT&T. If you check out the official notice of
Lumia Cyan availability for North American carriers**, you will see that despite Cricket having sold both the Lumia 520 and 620, neither model received any software updates, whereas all of AT&T's Lumia models have received every applicable upgrade.
Having a Cricket sim in your AT&T phone might preclude your receiving the updates that would come via AT&T. You might be able to clarify this issue if you speak with AT&T's support personnel. It's unlikely that Cricket's support people will be sufficiently knowledgeable or forthcoming to be of help.
n.b. I could not include links in my response because my post count is too low. Add the usual web prefix after the = for both lines below.
*= forums[DOT]windowscentral[DOT]com/nokia-lumia-1520/317506-visual-voicemail-cricket[DOT]html
**= www[DOT]microsoft[DOT]com/en/mobile/support/software-update/wp8-software-update/availability-in-north-america/