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    Default Can I update an unlocked At&t One using another carrier's SIM?

    I'm using T-Mobile's network with an unlocked AT&T HTC One, and I noticed I can't get today's 4.4 update. It currently has 4.3. Doing a little bit of online looking, it seems I might need an AT&T Sim card to get the update, or else root the phone and install one of the ROMs from HTCdev. Anyone have advice?
  2. #2  
    jnannuri's Avatar

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    Default Re: Can I update an unlocked At&t One using another carrier's SIM?

    I have an unlocked AT&T One. I'm using it in India with a local network. I was able to update it to 4.4 without any issues, just the normal procedure. Everything is working fine after the update. I unlocked it using a code purchased through eBay.

    Posted via Android Central App
  3. #3  
    wizzrah's Avatar

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    Default Re: Can I update an unlocked At&t One using another carrier's SIM?

    Quote Originally Posted by greenhelium View Post
    I'm using T-Mobile's network with an unlocked AT&T HTC One, and I noticed I can't get today's 4.4 update. It currently has 4.3. Doing a little bit of online looking, it seems I might need an AT&T Sim card to get the update, or else root the phone and install one of the ROMs from HTCdev. Anyone have advice?
    You can take this opportunity to unlock your bootloader, flash a recovery, root, and flash a rom if you are up to it. Or maybe HTC has an RUU for it. It may be that it hasn't received the notice from AT&T that there is an update. I would say try getting an AT&T sim card in there if you want to play it safe.

    Sent from my AT&T One X running CodefireX ROM Android Version 4.4.
  4. #4  

    Default Re: Can I update an unlocked At&t One using another carrier's SIM?

    Hey I also have an at&t unlocked HTC one in India.... But unable to update it... it is still at 4.1. It either keeps loading and disappear or says no updates available.... Any help ???
  5. #5  
    wizzrah's Avatar

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    Default Re: Can I update an unlocked At&t One using another carrier's SIM?

    Quote Originally Posted by VidyaParayil View Post
    Hey I also have an at&t unlocked HTC one in India.... But unable to update it... it is still at 4.1. It either keeps loading and disappear or says no updates available.... Any help ???
    You may have to update manually. You would have to go to the HTC website and see if they have the program (RUU) that will update your phone.
  6. #6  

    Default Re: Can I update an unlocked At&t One using another carrier's SIM?

    Can you please let me know how to update it, since i bought it in Us with AT&T, when i unlock the phone it is only carrier unlocked and not the phone unlocked, still i am seeing at&t apps in my phone and also when i try to check for update is shows only at&t software updates.
  7. #7  

    Default Re: Can I update an unlocked At&t One using another carrier's SIM?

    Hi I am using HTC One M7 in India and facing updat issues it says no update available can u please help me if u have Amy info

    Posted via the Android Central App
  8. #8  
    Rukbat's Avatar

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    Default Re: Can I update an unlocked At&t One using another carrier's SIM?

    Look on XDA Forums for an update file for that model M7 and install it manually.

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