[Q] Problem completing AT&T issued SIM unlock - AT&T HTC One (M7)

I recently converted by AT&T version to a Google Edition via S-OFF, CID change and Google 4.4 RUU.
AT&T has tried to issue me unlock codes twice, but neither works. I'm using an old t-mobile SIM to attempt the unlock.
Does anyone know if maybe updating the CID impacts the ability to use a carrier unlock code?

brazenass said:
I recently converted by AT&T version to a Google Edition via S-OFF, CID change and Google 4.4 RUU.
AT&T has tried to issue me unlock codes twice, but neither works. I'm using an old t-mobile SIM to attempt the unlock.
Does anyone know if maybe updating the CID impacts the ability to use a carrier unlock code?
Click to expand...
Click to collapse
Install a stock at&t ROM and try again. In multiple threads it has been said that the at&t unlock code only works on stock roms
Sent from my HTC One using xda app-developers app

I just unlocked on a att stock rom, 4.3 to be exact. Then restored.

Related

[Q] Carrier Unlock Help AT&T

Hey,
I need some help, I want to unlock my AT&T HTC One. I already have the unlock code with me.
But Right now I am on a custom ROM, GPE 4.3. I was inquisitive of two things:
1. If I can unlock my phone from the network while being on Custom ROM?
2. Can I unlock it using an international SIM, which is not working since the roaming is disabled.
To add to the first point, if I can how do I do it? And If I cannot think, I know the method to come to stock. But then again, after I come back to stock, how do I unlock the boot loader again and root the device?
Any help will be highly appreciated. Please let me know as soon as possible, I need to travel soon
I had problems SIM unlocking my AT&T HTC One with GPE conversion as well. It wouldn't unlock at all.
I simply just flashed ViperOne rom and tried the unlock it and it worked. I think you can only unlock with a sense rom but I am no developer so I wouldn't know for sure.
All you have to do is put the other SIM card with the sense rom and the option to unlock with an unlock code should come up and work.
Sent from my HTC One using XDA Premium 4 mobile app
This is a known issue that you can only unlock using a sense rom
Sent from my HTC One using xda app-developers app
I know it may be out of context but I have a sim unlocked AT&T HTC One, so if I'm going to unlock bootloader, root and flash a custom ROM then are there chances that my phone will be SIM Locked again ?
ank707 said:
I know it may be out of context but I have a sim unlocked AT&T HTC One, so if I'm going to unlock bootloader, root and flash a custom ROM then are there chances that my phone will be SIM Locked again ?
Click to expand...
Click to collapse
No
Sent from my HTC One using Tapatalk 4

Is AT&T Optimus G carrier locked ?

Someone offered me an E970 bought from AT&T and he says it is unlocked.
Does it mean someone unlocked it ? it is permanently unlocked then ? or do I need to obtain some PIN to unlock it
again when a software update is done ?
kalda01 said:
Someone offered me an E970 bought from AT&T and he says it is unlocked.
Does it mean someone unlocked it ? it is permanently unlocked then ? or do I need to obtain some PIN to unlock it
again when a software update is done ?
Click to expand...
Click to collapse
If its unlocked it can work with any GSM network provider no need to obtain PIN to unlock it. It will stay unlocked even after updating.
And you want to clarify whether he is referring to carrier unlocked or bootloader unlocked. Big difference.
Sent from my Optimus G using xda app-developers app

[Q] att sim unlock

Ive got gpe converted att one, s off unlocked bootloader, super cid
My question , do i return to any stock sense to sim unlock ? I have code from att.
rbouza1 said:
Ive got gpe converted att one, s off unlocked bootloader, super cid
My question , do i return to any stock sense to sim unlock ? I have code from att.
Click to expand...
Click to collapse
You have to go back to stock at&t to Sim unlock
Sent from my HTC One using xda app-developers app
Ok sounds good, ill backup and pop in non att sims and put it code and restore

Proper Conditions for Network Unlock?

I am trying to perform a carrier unlock on my AT&T HTC One so I can use it overseas while I am travelling. I have contacted AT&T and am waiting for an unlock code. In the mean time, I understand I need to be on a stock ROM for the unlock code to work. I have the ROM downloading, but am curious if I need to return the phone completely to stock. My phone is rooted and S-Off - do I need to reverse both of these conditions? I'm also wondering if I need to be on a stock recovery or not.
Thanks!
Josh
It appears that AT&T will not provide an unlock code unless you are out of contract, so it's pointless after all.
http://forum.xda-developers.com/showthread.php?p=49851355
Sent from my HTC One using XDA Premium 4 mobile app
I was able to obtain an unlock code from option 5 in this thread:
http://forum.xda-developers.com/showthread.php?t=2242473
Loaded a stock ROM, but kept the bootloader unlocked and my custom recovery. Unlock code worked just fine.

Unlocking with unlock code from ATT

I have got unlock code from ATT to unlock my device to use the phone out side ATT network. Right now I am on lollipop ROM and when I insert a different sim and enter the code it says cannot unlock.
Do I need to be on stock rom to use the unlock code?
TIA.
atrix4nag said:
I have got unlock code from ATT to unlock my device to use the phone out side ATT network. Right now I am on lollipop ROM and when I insert a different sim and enter the code it says cannot unlock.
Do I need to be on stock rom to use the unlock code?
TIA.
Click to expand...
Click to collapse
Yes, you need to unlock the device with the stock rom installed.
majmoz said:
Yes, you need to unlock the device with the stock rom installed.
Click to expand...
Click to collapse
Do you suggest any in particular?
rooted stock rom should be fine right?
atrix4nag said:
Do you suggest any in particular?
rooted stock rom should be fine right?
Click to expand...
Click to collapse
I don't know your particular setup but if you are on AT&T then use clsA's Stock Rom Reset.
majmoz said:
I don't know your particular setup but if you are on AT&T then use clsA's Stock Rom Reset.
Click to expand...
Click to collapse
I had ARHD downloaded on my phone, so installed it and successfully unlocked my phone. So root doesnt matter for applying unlock code.
Thanks for guiding me correctly..
atrix4nag said:
I had ARHD downloaded on my phone, so installed it and successfully unlocked my phone. So root doesnt matter for applying unlock code.
Thanks for guiding me correctly..
Click to expand...
Click to collapse
A little bit late to all this I just got the M7 . I did not think to unlock before flashing and rooting. So in order to unlock the carrier restriction I have to be back on stock and then enter the code that AT&T gives me?

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