1. low06sierra's Avatar
    Phone started to drop signal and pick back on Sunday. I then went to the apple store and got a replacement and was fine up until now. I was running iOS 5.0.1 and I thought it might've been the software so when I setup the new phone and restored all my stuff, I didn't do the update. Could it be a bad sim card? Has anybody had this issue before? Any help is appreciated
    01-04-2012 02:25 PM
  2. ThePinkChameleon's Avatar
    I don't know anything about sim cards, but I will start off with the simple and possibly obvious that may solve your issue.

    Have you called AT&T to see if there are any issues in your area as far as cell towers go? Also, you could try resetting the network on your phone- settings/general/reset/reset network settings and maybe follow that with a reboot. You'll have to set up your wifi info again also.
    01-04-2012 02:32 PM
  3. Garz's Avatar
    Phone started to drop signal and pick back on Sunday. I then went to the apple store and got a replacement and was fine up until now. I was running iOS 5.0.1 and I thought it might've been the software so when I setup the new phone and restored all my stuff, I didn't do the update. Could it be a bad sim card? Has anybody had this issue before? Any help is appreciated
    Could be a SIM card or network issues. Also, what version are you running of 5.0.1? 94A05 or 94A06? If you on the first, restore via iTunes to get on 5.0.1 version 94A06 as that OS was update to fix some network issues.
    taroliw likes this.
    01-04-2012 02:36 PM
  4. low06sierra's Avatar
    I don't know anything about sim cards, but I will start off with the simple and possibly obvious that may solve your issue.

    Have you called AT&T to see if there are any issues in your area as far as cell towers go? Also, you could try resetting the network on your phone- settings/general/reset/reset network settings and maybe follow that with a reboot. You'll have to set up your wifi info again also.
    It drops it anywhere I'm at but I'll give them a call later. I have reset the settings with a reboot but no luck with that. Last night when I was hooking it up to my laptop, it wouldn't sync and just give me an error message to reconnect it
    01-04-2012 02:38 PM
  5. low06sierra's Avatar
    Could be a SIM card or network issues. Also, what version are you running of 5.0.1? 94A05 or 94A06? If you on the first, restore via iTunes to get on 5.0.1 version 94A06 as that OS was update to fix some network issues.
    I'm currently on 5.0 9A334, how will I know if it's 94A06 when I update?
    01-04-2012 02:41 PM
  6. Garz's Avatar
    I'm currently on 5.0 9A334, how will I know if it's 94A06 when I update?
    You wont know until after the install.
    01-04-2012 02:45 PM
  7. ThePinkChameleon's Avatar
    You wont know until after the install.
    Like Garz said you won't see the version till after the install. When your done installing, you can go into your settings/general/about and scroll down to see the version.
    01-04-2012 02:51 PM
  8. BreakingKayfabe's Avatar
    I'd update like Garz suggested. I'd also just get a new sim card from an ATT store for the heck of
    it. It's free anyway.
    01-04-2012 02:51 PM
  9. low06sierra's Avatar
    Alright I'll update and see how it goes. I'll go ahead and get a sim card as well
    01-04-2012 03:03 PM
  10. ame's Avatar
    Welcome to this party. Ugh. Been there. I went through SIX iPhone4s. The first 4 did this same thing, where it would work for a while, then start searching constantly for a signal. When it did have one, it would not make outbound calls without not being able to connect or hear a connection on my end. I had 8 sim cards by then also, I pretty much went between ATT and Apple stores bec both blamed the other party. Before they gave me the fifth one, Apple got upper level tech involved at ATT, and they reset all kind of stuff on my account. Suddenly I was able to keep a signal, but I was not able to make outbound calls properly yet. I JUST got the 6th phone AND my 9th Sim about two weeks ago and this is finally the first time with a 4S ive been able to make calls AND not be searching all the time. There is something wrong between the SIM/Account/Line and the phone. Call Applecare and get a Senior Advisor, and then they can get ATT on the line and work with you. It will likely NOT be a quick fix, jsut be aware. It took over 2 months to finally get a functional situation.
    01-04-2012 03:18 PM
  11. ame's Avatar
    Alright I'll update and see how it goes. I'll go ahead and get a sim card as well
    Make sure it's a NEW SIM and that they DO NOT copy ANY data to it.
    01-04-2012 03:19 PM
  12. low06sierra's Avatar
    Updating right now. So just get the sim card completely blank with no contacts?
    01-04-2012 04:29 PM
  13. krs7272#AC's Avatar
    Also just google to download the 5.0.1 46 os version and manually update shift+restore.


    Sent from my iPhone 4S using Tapatalk
    01-04-2012 04:57 PM
  14. ame's Avatar
    Updating right now. So just get the sim card completely blank with no contacts?
    Yes. Have them not put ANYTHING on it.
    01-04-2012 07:43 PM
  15. low06sierra's Avatar
    downloaded the update but it said firmware was not compatible or something like that. spent 2 hours downloading it for nothing

    i'll update it over wi-fi tomorrow
    Last edited by low06sierra; 01-04-2012 at 09:41 PM.
    01-04-2012 09:17 PM
  16. krs7272#AC's Avatar
    Just to let you know iTunes and update OTA will give you the 94A05 not 94A06 the latter has to bd manually downloaded and loaded via iTunes shift restore. You'll need to bd in DFU mode to do this IIRC


    Sent from my iPhone 4S using Tapatalk
    01-04-2012 10:09 PM
  17. low06sierra's Avatar
    Just to let you know iTunes and update OTA will give you the 94A05 not 94A06 the latter has to bd manually downloaded and loaded via iTunes shift restore. You'll need to bd in DFU mode to do this IIRC


    Sent from my iPhone 4S using Tapatalk
    Do you happen to have the link to the 94A06 update? I couldn't find it when I googled it. What's DFU mode? I'm new to iPhones so it'll take me awhile to get a hang of the abbreviations. Do you think that would fix the problem?
    01-04-2012 10:40 PM
  18. krs7272#AC's Avatar
    Do you happen to have the link to the 94A06 update? I couldn't find it when I googled it. What's DFU mode? I'm new to iPhones so it'll take me awhile to get a hang of the abbreviations. Do you think that would fix the problem?
    OS Download
    iPad, iPod and iPhone Firmware Downloads - Direct Links

    DFU

    iClarified - iPhone - How to Put an iPhone Into DFU Mode

    After your in DFU HOLD SHIFT+RESTORE and point to the file you downloaded


    As far as I know I heard the newer OS may have addressed SIM issues? Cant hurt to try...
    01-04-2012 10:52 PM
  19. low06sierra's Avatar
    says the link is broken but i found another link though. i'll download it hopefully tomorrow and will also get the sim card. hopefully the sim will fix it, i barely have any data left on my air card to download that huge file
    01-04-2012 11:42 PM
  20. krs7272#AC's Avatar
    Also make sure your running the newest version of iTunes


    Sent from my iPhone 4S using Tapatalk
    01-04-2012 11:46 PM
  21. low06sierra's Avatar
    Also make sure your running the newest version of iTunes


    Sent from my iPhone 4S using Tapatalk
    i am running the latest version. ok so i downloaded the 94A06 update. question, can i shift+update instead or do i have to shift+restore?
    01-05-2012 10:24 PM
  22. krs7272#AC's Avatar
    Shift restore is correct and only way


    Sent from my iPhone 4S using Tapatalk
    01-05-2012 10:41 PM
  23. low06sierra's Avatar
    Shift restore is correct and only way


    Sent from my iPhone 4S using Tapatalk
    gotcha. still trying to get it into DFU mode
    01-05-2012 10:43 PM
  24. JackHanford's Avatar
    Bet that's harsh on your battery life
    01-05-2012 10:43 PM
  25. krs7272#AC's Avatar
    Hold power+home count 10 sec release power continuing to hold home. I listen to my pc for the usb sound then u can let go.

    Your screen will be black if you have the itunes picture or something else your not in DFU


    Sent from my iPhone 4S using Tapatalk
    01-05-2012 10:51 PM
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