Upgrade Iphone 4 on ATT network

Question: If I buy an unlocked 5S can I just insert my 4 sim card and all will work as usual on the ATT wireless network?

No. Sim cards are different sizes between an iPhone 4 and an iPhone 5s. 
Also some provisioning for the LTE service must be made to your sim card.
You can however go to your carrier and ask your service be transferred to a  Nano sim that can be used with an iPhone 5s. They should be able to do this for free or at least for very cheap.

Similar Messages

  • Sprint iphone 5 on att

    can i use my sprint iphone 5 on att network by replacing the sim card?

    No. You would first have to get Sprint to unlock the GSM side of your iPhone and even if they did that it would not work with domestic GSM carriers.

  • Is it possible to get my old iphone 3gs from att to work on a verizon network?

    is it possible to get my old iphone 3gs from att to work on a verizon network?

    No - your iPhone is a GSM phone and Verizon uses a CDMA network. Completely incompatible device and technology.

  • HT201699 My carrier is Straight Talk (using ATT network) and they require the user to enter the APN settings in order to access their data network. My Iphone 4s is factory unlocked but I can not get to the Cellular Data Network tab to enter the settings?

    My carrier is Straight Talk (using ATT network) and they require the user to enter the APN settings in order to access their data network. My Iphone 4s is factory unlocked but I can not get to the Cellular Data Network tab to enter the settings?

    Yes ATT hides the APN settings so when you try to use a st sim it automatically reads on AT&T network so the APN settings are hidden and cannot be accessed however you can go to apn.straighttalk.com on you'r phone and select APN/data settings then select AT&T then iPhone and a screen will pop up asking if you would like to install the profile for whatever reason it's not verified but works fine. You can also go to www.unlockit.co.nz and set up a straight talk APN profile that is verified not sure exactly what that means but both work to get the data working on the phone for straight talk but it does not make the MMS work. There are a couple other methods I have read about one is on howardforums using ibackupbot to manually change the files on the phone I haven't been able to get mine to stick using that method but other people have and there is a sim swap method to trick the phone to reveal APN settings using a tmobile sim I have not tried this but other people have with success. The last two methods mentioned will make both data and MMS work

  • TS2787 iPhone 5S could not reply the email to all recipients with ATT network but It can in Wifi ?

    The iPhone 5S could not send email to all recipients but It can when it logged on Wifi / I have ATT service. Please help .

    Hello jhhoang,
    It sounds like you are unable to reply to all with your cellular data connection, but on Wi-Fi it seems to work fine. If you have already quit all the running apps, and restarted the phone per:
    iOS: Force an app to close
    http://support.apple.com/kb/ht5137
    Double-click the Home button.
    Swipe left or right until you have located the app you wish to close.
    Swipe the app up to close it.
    And
    iOS: Turning off and on (restarting) and resetting
    http://support.apple.com/kb/ht1430
    I would use the following troubleshooting from this article:
    iPhone: Troubleshooting a cellular data connection
    http://support.apple.com/kb/ts3780
    Toggle airplane mode: Tap Settings, turn airplane mode on, wait three seconds, and then turn off again.
    Restart your iPhone.
    Make sure that your software is up to date:
    Check for a Carrier Settings Update: Tap Settings > General > About.
    Check for an iOS Software Update: Tap Settings > General > Software Update.
    Note: Some updates may require a Wi-Fi connection.
    Remove the SIM Card and reinsert it. Allow the iPhone to acquire the network again.
    If your SIM card has SIM PIN enabled, try turning it off: Tap Settings > Phone > SIM PIN.
    Try another location. If a different location works, but the original location still doesn't, contact your carrier to report the issue.
    Reset network settings: Tap Settings > General > Reset > Reset Network Settings.
    Restore the iPhone as new.
    Contact your carrier to:
    Verify that the iPhone is properly set up on the account with the appropriate, current data plan.
    Verify that there are no account-related blocks.
    Find out if there are specific error messages in the carrier logs that could help determine why the issue is occurring.
    If none of the above steps resolves the issue, contact your carrier or contact AppleCare to troubleshoot further.
    Thank you for using Apple Support Communities.
    Cheers,
    Sterling

  • I noticed after I did the 5.1 update to my iPhone 4S it now says I'm on the 4G network... will this upgrade put all iPhones on the 4G network?

    I noticed after I did the 5.1 update to my iPhone 4S it now says I'm on the 4G network... will this upgrade put all iPhones on the 4G network?

    Depending on what source you read there are no 4G networks anywhere in the world (the definition is 100 Mbps or better). However, that doesn't stop carriers from calling somewhat more advanced networks from claiming they are "4G". Thus, Verizon calls their LTE network 4G. At 7-15 Mbps it's certainly better than their lame EVDO, but it isn't true 4G. AT&T calls their HSPA+ 4G, and I have seen up to 7 Mbps on my 4S, which makes it faster than their 1.5-2Mbps HSDPA. But it isn't LTE (which AT&T is deploying also and isn't compatible with the iPhone). So the short answer is that it's just market positioning.

  • Am planning to upgrade to the iPhone 6 with att next 12.

    Am planning to upgrade to the iPhone 6 with att next 12. It's says it's 37.45/month.. Now I have 10gb mobile share do I get 25$ off the 37.45?

    You'll have to ask AT&T.

  • HTF do i get my iPhone to connect to network after iOS7 upgrade? (Upgrade--really?)

    HTF do i get my iPhone to connect to network after iOS7 upgrade?  Upgrade?  Really?   I'm just really upset that I have to continually make concessions to someone else and my product does NOT work the way it should, and has done in the past!!!!

    Depends on your browser and it may appear in your downloads folder to run.  If you are using IE, it will appear on the bottom of the screen, Google Chrome, bottom of the screen, Firefox, top of the screen with an big arrow

  • More than 1 iphone on same ATT account?

    This is probably a basic question that has been answered many times...but I can't find it on the search so my apologies for any redundancy.
    My wife already has an iphone on our ATT family plan and is paying an extra $50 a month for the 3g Data package. I am now eligible for an iphone upgrade and I'm told by AT&T that I will need to pay an ADDITIONAL $30 a month for my data package.
    However, a coworker is in the same situation but bought his iphone directly from an apple store where they simply "attached" his new iphone to the existing account so he is NOT paying any additional monthly fee.
    So which is it? Must each iphone have it's own data package fee or can more than one access the 3g network via the same account?

    Thanks everyone......based on your input, half of the mystery is solved. Turns out the upstanding rep at AT&T signed my wife up for the $45/month Enterprise package which she neither requested nor needed.......she just didn't realize there was a $30 option. Lesson learned: it pays to do your homework BEFORE you buy. The additional $5 was for the 200 text/month package. So I'll be changing her account to the regular $30/month data pack since that's all she needs.
    The other portion of the mystery is still unsolved. My friend is certain that he and his wife are sharing the same data package over 2 iphones.....but I think there must be something missing there. Anyway, thanks all you've been very patient and a huge help!

  • Just upgraded iPhone 4 from 4.2 ios to 6.1.3 ios now can't connect to internet

    I just updated my friend's iPhone 4 from 4.2 ios to 6.1.3 ios  --  she had not updated it since she purchased it.  The uploads installed fine but now she can't access safari/internet and can't send pictures via text message.  She is strictly 3g with no wireless access at her home.  Could this be caused by the software upgrade?  If not, how/where do I start looking for the problem.
    Any help will be greatly appreciated.
    chuswysly♥

    Hi chuswysly,
    If your friend if having trouble connecting to her cellular network, the steps below might help:
    iPhone: Troubleshooting a cellular data connection
    Resolution
    Follow the instructions below for assistance with troubleshooting cellular data issues on your iPhone. After performing each step, please test to see if the issue is resolved.
    Toggle cellular data off and then on again on the iPhone: Tap Settings > General > Cellular.
    Restart your iPhone.
    Check for a carrier settings update.
    Update your iPhone.
    Remove the SIM Card and reinsert it. Allow the iPhone to reaquire the network.
    If your SIM card has SIM PIN enabled, try toggling it off: Tap Settings > Phone > SIM PIN.
    Try another location. If a different location works, but the original location still does not, contact your carrier to report the issue.
    Reset network settings: Tap Settings > General > Reset > Reset Network Settings.
    Restore the iPhone as new.
    Contact your carrier to verify that the iPhone is properly set up on the account with the appropriate, current data plan. If you are traveling internationally, you may need to turn data roaming on: Tap Settings > General > Cellular. Check with your carrier first to understand the cost of international data roaming. Also, see this article.
    Note: If your carrier does not appear in this list, verify with your carrier that you are using the correct cellular data settings.
    If none of the above steps resolves the issue, contact your carrier, make an appointment at an Apple Retail Store, or contact AppleCare to troubleshoot further.
    Hope this helps ...
    - Judy

  • Since upgrading Iphone to iOS 5.1.1 it does not automatically use wifi internet when wifi is available. It has been draining my mobile data. I can only manually change settings with cellular data everytime I get home. Any other solutions?

    Since upgrading Iphone to iOS 5.1.1 it does not automatically divert to my wi-fi internet when wifi is available in my home. It has been draining my mobile data I  now have very high bills from my mobile carrier for high data usage. I can only manually change settings in the Network and turn cellular data on and off everytime I get home and leave the home. This is very frustrating as it wasn't a  problem until the upgrade. I have spoken to a few people that this has happened to. Has anyone found this problem and does anyone have other solutions?

    Please disregard this question. I'll submit a shorter and more direct question. Thanks.

  • Since upgrade iphone 4 Version 7.0.0,I noticed my WIFI is not conecting very good.It stays in 3G.How can I fix?Thanks Dale

    Since upgrade iphone 4 Version 7.0.0,I noticed my WIFI is not conecting very good.It stays in 3G.How can I fix?Thanks

    Hello there, Birdman8.
    The following Knowledge Base article provides some great troubleshooting steps for resolving your issue:
    iOS: Troubleshooting Wi-Fi networks and connections
    http://support.apple.com/kb/TS1398
    Thanks for reaching out to Apple Support Communities.
    Cheers,
    Pedro.

  • When tried to upgrade iphone 4S from 8.1.2 to 8.1.3 it crushed at the middle, after it it not let it tern on and cannot make recovery and crush in the middle of the process with "could not be restored. An unknown error occurred (3014)"

    When tried to upgrade iphone 4S from 8.1.2 to 8.1.3 it crushed at the middle.
    After it it not let it tern on and cannot make recovery and crush in the middle of the process with "could not be restored. An unknown error occurred (3014)"

    Hi bahaluly,
    Thanks for using Apple Support Communities. Based on what you stated, it sounds like you are not able to update the iPhone. I would recommend that you read this article, it may be able to help the issue.
    Get help with iOS update and restore errors - Apple Support
    Solve network errors
    Related errors: 17, 1638, 3014, 3194, 3000, 3002, 3004, 3013, 3014, 3015, 3194, 3200, or "There was a problem downloading the software," or "The device isn't eligible for the requested build." These alerts mean that your computer is either having difficulty contacting the Apple update server or communicating with your device. 
    Check your computer for software or settings that might cause communication issues between your computer and Apple or between your computer and your device.
    Cheers,
    Mario

  • HT201210 I have error code -43 when trying to upgrade iPhone 3GS running v4.3 to version 5 or above. This error occurs whilst trying to back up phone during upgrade process. 2GB of free memory on phone. Can anyone help?

    I have error code -43 when trying to upgrade iPhone 3GS running v4.3 to version 5 or above. This error occurs whilst trying to back up phone during upgrade process. 2GB of free memory on phone. Can anyone help?

    Well I spoke too soon.
    The update was successful, but now I cannot connect to the 3GS data network.
    Cannot get email and cannot open a page in Safari.
    +"Safari could not open the page because the server stopped responding."+
    +"Cannot Get Mail+
    +THe mail server is not responding. Verify that you have entered the correct account info in Mail settings."+
    Email and internet work fine on WiFi.........no data using 3GS network.
    Looks like I will have to revert back to old OS.

  • Every time I try to download and update my Iphone it says the network connection was interrupted and to check it again.

    Every time I try to download and update my Iphone it says the network connection was interrupted and to check it and try again. It says this when I try to update my iPhone AND my iTunes It never lets me upgrade! Can anyone help me?

    See Here for
    Contact iTunes Customer Service
    http://www.apple.com/support/itunes/contact.html
    And Here if you need it...
    Apple ID Support
    http://www.apple.com/support/appleid/contact/

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