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Jtludwig

macrumors 6502
Mar 24, 2012
419
310
I just want to be clear, i have no means to switch over to tmobile because their service is atrocious in my area, if i was to get the "tweaked" a1428 iphone 5 and put my at&t sim in it, that means the activated AWS would do something for me as well? meaning the phone would just have stronger signal strength when inside buildings and stuff like that? just a question i really haven't seen asked specifically toward at&t service

Nope. It would make no difference for you on AT&T.
 

Jtludwig

macrumors 6502
Mar 24, 2012
419
310
Check this out. Supposedly if you have an unlocked IPhone 5 that supports AT&T/TMobiles LTE band and are jailbroken you can enable TMobile LTE right now if you live in the coverage area:

http://leimobile.com/how-to-enable-lte-on-iphone-5-for-t-mobile/

So you purchased an unlocked iPhone 5 before T-Mobile released their new version of the iPhone 5 that supports 1700mhz. This could be the AT&T model or the officially unlocked version sold by Apple. Please understand that if you have a Verizon iPhone 5 you will not be able to connect to T-Mobile’s LTE network. It does not have the correct LTE band. Currently T-Mobile only has a few cities listed that have support for LTE and they are upgrading towers all year long.
Now that you have an unlocked AT&T model A1428 or an officially unlocked model A1428 you can proceed to follow the instructions below to load a custom carrier file onto your iPhone and enable LTE. This will only work on A1428 model iPhone 5′s.
This is the guide to enabling LTE on your iPhone 5 model A1428 for T-Mobile.
1. Open Cydia
2. Tap “Manage” and then tap “Sources”
3. Tap “Edit” then tap “Add” and put the following URL into the text box: http://v.backspace.jp/repo
4. Once the URL is entered in tap “Add Source” and allow for it to download all of the repo’s info and packages.
5. After your iPhone has refreshed, tap the v.backspace.jp/repo field or go to the search bar and find the package CommCenter* patch…
6. Once you have found it, install it and then reboot your iPhone once completed.
7. After the iPhone has restarted, open Cydia once again.
8. Search for iFile. The free version includes basic features. You will want to purchase it to take advantage of all of the features.
9. Once you have found it, install it. No reboot is required, though you can do it just to be on the safe side.
10. Once iFile has been installed, close Cydia and click on this file from your iPhone and click “Open in iFile”
11. Once you’re in iFile tap “Unarchiver” and 3 files will show up above T-Mobile LTE.zip
12. At the top, tap “edit”and tap the dots with a check mark next to carrier.plist, overrides_N41_N42.plist, and overrides_N41_N42.pri
13. Tap the clipboard icon at the bottom and tap “cut”
14. Now tap “done” at the top and tap the house icon at the bottom then tap Library, then tap Carrier Bundle.bundle (the one in blue), and then tap edit at the top again and tap the clipboard icon. Tap “paste” and it will auto inject the carrier files into the carrier folder overwriting the other files.
15. After the files have been placed, exit iFile and restart iPhone. After the iPhone restarts, allow it to acquire signal and display the T-Mobile logo then go to where you edit the APN settings (Settings –>General–>Cellular) Once that is done, enable the LTE toggle and you’re good to go.
 
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