iPhone Force install T-Mobile ipcc file

I was messing with my iPhone and deleted the carrier file but my phone still thinks that it has 14.1 installed and visual voicemail does not work anymore.

How can I force iTunes to install the carrier file once again? I've downloaded it and have it on my computer. Going to about in settings won't install it again.

I did this because I was using a AT&T data only sim in my 4S and the installed profile to enable data on that sim PLUS the T-Mobile carrier update was causing my battery to drain 1% every few minutes.

Thanks

Fixed it. Installed a repo in Cydia to remove the carrier update and then reapplied the update. Got my Visual Voicemail back and now I know what to do to swap sims between the AT&T data only and the T-Mobile sim.

Didn't want to lose my JB just to get this fixed.

TriJetHero said:

Which repo was that?

Click to expand...

v.backspace.jp/repo/

TriJetHero said:

Thanks!

Click to expand...

You need to install the com center hack in that repo first.