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  1. Thread Author  Thread Author    #1  

    Default Sprint s4 on att gsm...

    So I'm thinking of switching to the net10 mvno - will a s4 on sprint (unlocked) see hspa+ gsm speeds with gsm only on?



    Sent from my LG-LS980 using Tapatalk
  2. #2  

    Default Re: Sprint s4 on att gsm...

    in short- No it wont. you need to put the phone in GSM/WCDMA to see HSPA+ and the phone needs to also be set on release 8 with the APN for that network.

    edit: how to do it is posted below.
    Note: that the phone needs to already be unlocked this will not unlock your phone.
    Last edited by Erin Heilner; 02-19-2014 at 03:48 PM. Reason: adding info
  3. #3  

    Default Re: Sprint s4 on att gsm...

    this is GSM/WCDMA on rel 8
    Sprint s4 on att gsm...-screenshot_2014-02-19-10-44-20-1-sgh.jpg
    here is set on GSM only on band 850gsm as you can see only get 2g E
    Sprint s4 on att gsm...-band-850-e.jpg
    this is to show you it is a sprint phone
    Sprint s4 on att gsm...-info-sprint-h-att.jpg
    Attached Thumbnails Attached Thumbnails Sprint s4 on att gsm...-screenshot_2014-02-19-10-44-20-1-sgh.jpg  
    Last edited by Erin Heilner; 02-19-2014 at 10:20 AM.
    Thanked by:
    UJ95x 
  4. #4  

    Default Re: Sprint s4 on att gsm...

    step 1. use an app to input apn or do it your self. build prop editor add ril.sales_code=lol ro.csc.sales_code=lol do not reboot.
    step 2. enter service mode. *#0011# menu back menu select 0*
    step 3. now you will be at main menu. pick 3 LTE
    step 4. pick Pref mode set. then pick 1 GSM/WCDMA. (do not reboot)
    step 5. go back to main menu then 1-1-6-7-1 (you will be in GCF) now pick GSM/(E)GPRS/WCDMA REL 8 reboot phone here
    step 6. input apn if you haven't already. menu key setting then pick more networks then pick mobile networks then access point name. then menu add new APN.
    if its not working make sure all these match.
    *#0011#
    Press menu and back then menu key input 0 now you are at the main menu and select [1]UMTS, then select [1]DEBUG SCREEN, then select [6]PHONE CONTROL, then select [3] NAS CONTROL. We are going to check a few different settings in this menu so remember how to get here.
    [1] CIPHERING CONTROL = ON
    [2] INTEGRITY CONTROL =ON
    [3] SIM CLASS CONTROL = UMTS
    [4] REVISION CONTROL = rev level sniffer
    [5] RRC(HSPA) CONTROL = Release 8
    [6] DUALMODE IMPROVEMENT CONTROL= Not acting
    [7] NAS AVOID SECURITY CONTROL= Not acting
    [8] BIP BLOCK = 1
    another thing I did change was the AQUISTION ORDER don't know if it matters. *#0011#
    Press menu and back then menu key input 0 now you are at the main menu and select [1]UMTS, then select [1]DEBUG SCREEN, then select [6]PHONE CONTROL, then select [7] network control, Then select [4] AQUISTION ORDER, then select [3] UMTS_GSM
    Thanked by:
    UJ95x 
  5. Thread Author  Thread Author    #5  

    Default Re: Sprint s4 on att gsm...

    Wow - thank you all.

    For what it is worth I've decided to stay with sprint.

    Sent from my LG-LS980 using Tapatalk
  6. #6  

    Default Re: Sprint s4 on att gsm...

    Quote Originally Posted by johnner1999 View Post
    Wow - thank you all.

    For what it is worth I've decided to stay with sprint.

    Sent from my LG-LS980 using Tapatalk
    If you run into any problems or need help with switching it over just send me a pm and ill see what we can do.
    I didn't add how to move the phone back to CDMA.
    the steps I take to switch back is (below) because I ran into HFA error so I do it this way every time. I would recommend the same for you or anyone for that matter.
    go into service menu. go to main menu. from there pick 2 CDMA then 1 common then go to page 3 you will see [8] pref mode set switch it to CDMA_only. power off phone take out sim do not put a sim back in. after reboot then switch the phone in to LTE_CDMA_EVDO. then power off and put in LTE sim power on and good to go.

    Note: IF YOU DO A PROFILE UPDATE YOU WILL LOSE THE APN/APNS YOU INPUTED.
    Thanked by:

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