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  1. RCKLSS#IM's Avatar
    Hey guys new to the forum but not iphone... I have had all of the iphones since the 3g and up until today the iphone 4 on AT&T. I switched to VZW and the issue im having is that i have excellent 3g coverage in my area on vzw.. Until i get in my house that is where it flips back and forth between 1x and 3g. I was succesfully able to do this on my AT&T ip4 using this method:


    intall gtxtedit from cydia
    open gtxedit from icon
    load /var/preferences/csidata

    Inside csidata you will find the following line:

    The following values apply: 0x0(EDGE ONLY), 0x1(EDGE+3G), 0x2(3G ONLY).

    Select GsmRegistrationModel::fRatSelection=0x1

    Change 0x1 to 0x2 and save the file
    save to /var/preferences/csidata when asked

    Reboot the phone.

    Change the same file back to 0x1 and save to revert. Remember its the 1st one on top of 0x2 and you are basically making both 0x2.

    Below is the screen i see on the VZW ip4 and i figured it would be different on CDMA but i dont know what number i would use on the registration line underlined below... Or is there a different method to use for the CDMA version?? Thanks in advance for your help!!

    CallListModel DtmfType=0x0
    SettingsModel::UnconditionalCallForwardingActiveVa lue=0x0
    TraceModuleExtreme DIAG::fEnabled=0x0
    TraceModuleExtreme DIAG::fEnabledDuringSleep=0x0
    TraceModuleExtreme DIAG::fStopWaitTime=0x8
    TraceModuleExtreme DIAG::fMergeSnapshot=0x0
    TraceModuleExtreme DIAG::fHistoryCapacity=0x80
    TraceModuleExtreme DIAG::fStallProbeInterval=0xea60
    TraceModuleExtreme DIAG::fStallProbeBehavior=0x0
    TraceModuleExtreme DIAG::fMode=0x0
    TraceModuleExtreme DIAG::fFile=default
    TraceModuleExtreme DIAG::fShouldGeneratePlaintext=0x0
    TraceModuleExtreme DIAG::fShouldRetainRawFiles=0x1
    TraceModuleExtreme DIAG::fShouldTranslateLogs=0x1
    TraceModuleExtreme DIAG::fMessageConfigView=0x3
    TraceModuleExtreme DIAG::fLoggingConfigView=0x3
    TraceModuleExtreme DIAG::fEventConfigView=0x3
    Last edited by RCKLSS; 05-23-2011 at 09:56 PM.
    05-23-2011 09:49 PM
  2. W00tn3ss's Avatar
    What is it exactly your trying to do?
    05-28-2011 08:35 AM
  3. korp#IM's Avatar
    You can't lock onto a 3G signal if the area is only a 1x area, so that sounds completely useless.
    05-28-2011 10:53 PM
  4. ghostface147's Avatar
    Yeah if there is not 3G coverage, what are you locking onto?
    05-29-2011 11:42 PM
  5. Arelunde's Avatar
    It appears your home somehow limits your signal. I find this happens in certain places, even though the outside signal is a strong 3G. It can also occur as you drive around, hitting low-signal areas. I don't think you can force 3G and still have the use of your iPh all the time. If you forced it, it seems you wouldn't have any service when not in a 3G area.
    05-30-2011 10:49 AM
  6. ghostface147's Avatar
    Techshield, the mother of all indoor home signal killers. Hate it, but most, if not all, builders put it in.
    05-30-2011 11:14 AM
  7. LON3WOLFSOC13TY's Avatar
    to lock 3g on verizon iphones ios7 change the 1 to a 2 on the 3gswitch option and the work so i had to reply as quick as possible
    01-21-2014 01:24 PM

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