[Michael#IM]

Plugged into itunes today and says software update 9.2.1 available for my phone. Funny thing is my phone is up to date. I recently changed carriers (aswell as sim card for new carrier) would this have anything to do with it? Are software updates different for different carriers?

[robertk328]

Doesn't have to do with your carrier change This is an additional update to iTunes updaters only (i.e. not OTA) that fixes the "Error 53" issue.

How to update your iPhone to fix Error 53 | iMore


More on Error 53:

Apple comments on 'Error 53' failed security checks on iPhone | iMore

[Michael#IM]

It just came as a normal update though , i didn't have to restore or hold any buttons and still is 9.2.1, is that correct?

[Troublemakermk4]

Michael. What is your build number that you now have on your phone ? (13D15). The new 9.2.1 update has build number (13D20)

[robertk328]

It just came as a normal update though , i didn't have to restore or hold any buttons and still is 9.2.1, is that correct?

Right, just update as usual. I don't know why they didn't make it 9.2.2 to keep from confusing people (and even offer it OTA) but if you're doing it in iTunes it's safe to update.

[Michael#IM]

Ah yes, the build on my 6s is 13D20 :-)

[robertk328]

Ah yes, the build on my 6s is 13D20 :-)

Looks like you did the update then?

[Michael#IM]

Yep, my phone says 13D20 ;-) The only thing that got me wondering is that it's still 9.2.1 and i recently changed carriers. :-)

[Ledsteplin]

Yep, my phone says 13D20 ;-) The only thing that got me wondering is that it's still 9.2.1 and i recently changed carriers. :-)

Changing carriers would have nothing to do with it.

[robertk328]

Changing carriers would have nothing to do with it.

Right. It was just coincidence