I just purchased a Galaxy Note 3 (SM-N900A), full-price, off-contract, from AT&T Wireless. I used an existing GoPhone (prepaid) account/phone number to activate the phone. The phone works (voice calls) with the AT&T SIM. However, I want to use the phone/device on aioWireless. I have a microSIM for aio. I have purchased an unlock code and followed the unlock instructions. I received a "Successful unlock" message after entering the 8 digit network code. However, I cannot make phone calls (or use the data plan) when the aioWireless SIM is installed. When dialing a number with the aio SIM, I get a recorded message that the service has been deactivated, and to contact AT&T.
When I try to verify whether the phone has truly been unlocked by typing *#SIMLOCK# nothing happens. If I then push the CALL button, I then get the message: Connection problem or invalid MMI code.
Any clues what is going on?
stylecraft said:
I just purchased a Galaxy Note 3 (SM-N900A), full-price, off-contract, from AT&T Wireless. I used an existing GoPhone (prepaid) account/phone number to activate the phone. The phone works (voice calls) with the AT&T SIM. However, I want to use the phone/device on aioWireless. I have a microSIM for aio. I have purchased an unlock code and followed the unlock instructions. I received a "Successful unlock" message after entering the 8 digit network code. However, I cannot make phone calls (or use the data plan) when the aioWireless SIM is installed. When dialing a number with the aio SIM, I get a recorded message that the service has been deactivated, and to contact AT&T.
When I try to verify whether the phone has truly been unlocked by typing *#SIMLOCK# nothing happens. If I then push the CALL button, I then get the message: Connection problem or invalid MMI code.
Any clues what is going on?
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Click to collapse
The *#SIMLOCK# code does not work on newer phones so have to find another sim that you verified and works ok in another similar phone.Maybe aioWireless is not activated,does it work ok on other phones? Would recommend a tmobile sim ,because with that if the phone is unlocked then should connect to the network
Related
I have tried every code mentioned, in here, that was successful for others but not for me.
I started by buying my Galaxy S4, out right, at Walmart for use on Family Mobile. Poor signal everywhere except in my house. The phone has T-Mobile support as far as towers go. After about three weeks I had my phone number transferred to Straight Talk and they sent a SIM card for use with AT&T support. The phone was purchased as an unlocked phone, I did all the codes in this forum to check and sure enough, it is supposed to be unlocked, BUT, every SIM card I get from Straight Talk gives me "INVALID SIM CARD" when I boot up the phone then a black screen comes on with a subdued color message saying, "Sim network unlock PIN" and all the help from Family Mobile, T-Mobile, Straight Talk, Walmart and AT&T, have not helped my situation. I can't write a new APN and store it because I have an invalid SIM card. I have tried the service mode and did everything mention in these forums but no luck so far.
I really like the device(my NOT-Phone) but it does not function as a phone. Can anyone help with this one?
:crying:
gdeem01 said:
I have tried every code mentioned, in here, that was successful for others but not for me.
I started by buying my Galaxy S4, out right, at Walmart for use on Family Mobile. Poor signal everywhere except in my house. The phone has T-Mobile support as far as towers go. After about three weeks I had my phone number transferred to Straight Talk and they sent a SIM card for use with AT&T support. The phone was purchased as an unlocked phone, I did all the codes in this forum to check and sure enough, it is supposed to be unlocked, BUT, every SIM card I get from Straight Talk gives me "INVALID SIM CARD" when I boot up the phone then a black screen comes on with a subdued color message saying, "Sim network unlock PIN" and all the help from Family Mobile, T-Mobile, Straight Talk, Walmart and AT&T, have not helped my situation. I can't write a new APN and store it because I have an invalid SIM card. I have tried the service mode and did everything mention in these forums but no luck so far.
I really like the device(my NOT-Phone) but it does not function as a phone. Can anyone help with this one?
:crying:
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Click to collapse
No warranty in Walmart?!
If it connects to T-Mobile towers out of the box, can you borrow a T-Mobile SIM from soneone and go through the SIM unlock procedure? I'd do that just to make sure it's SIM unlocked. Then try Straight Talk with whatever APNs they use. Do this on stock and once you can confirm you get that far and it's working then go crazy. Good luck.
Locked SIM card
Daistaar said:
If it connects to T-Mobile towers out of the box, can you borrow a T-Mobile SIM from soneone and go through the SIM unlock procedure? I'd do that just to make sure it's SIM unlocked. Then try Straight Talk with whatever APNs they use. Do this on stock and once you can confirm you get that far and it's working then go crazy. Good luck.
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Click to collapse
If I put the original, 1st SIM (Family Mobile) that I bought, back in, I do not get the Unlock Sim code message but I also do not have service because I already had the number ported. I've been that route. I tried the APN routine but it won't save because I don't have service with that SIM card. I go into the unlock routine through the service mode and it says it's already unlocked. Any Sim card from Straight Talk gives me Invalid SIM.
I'm going to return it to Walmart and try another phone.
Another question......
When I took my phone to TMobile, the sales rep put in the TMobile micro SIM card and my phone recognized TMobile network.
Does this mean my phone is now unlocked?
When I tried the *#7465625#, I got this USSD Code running message. Later a window popped up and said "Connection Problem or invalid MMI code" I did not get a menu displaying Network lock off screen.
Is there other way I can check to see if my phone is fully unlocked? I only need to use this phone in Europe. I am not interested in switching to another carrier at this point.
Thank you! :laugh:
I have a SGH-I337 (AT&T) that I'm trying to get to work with a Verizon sim. I followed the steps in the post below.
http://forum.xda-developers.com/gal...aranteed-free-sim-unlock-mk2-nb1-nc1-t2852979
I follow the steps as stated but at the end the phone has no signal/loses signal using Verizon sim's.
Usually after a fresh boot, the phone will have bars but no data and cannot make calls. The phone states EMERGENCY CALLS ONLY at this point. After a few minutes the service bars will disappear and be replaced with a NO SERVICE indicator.
The phone no longer indicates an invalid sim, but does not auto load APN settings. Manually inputting the Verizon APN settings does not fix it either.
I have checked and it does NOT show the NULL IMEI on the *#06#. Also with the Verizon sim the hidden menus don't always function (*#0011# and such) although I've read that is an AT&T only thing, I'm not sure if that true.
When I insert an AT&T Sim it gets service/data immediately upon booting. I've also tried two different Verizon sim cards.
Thoughts or Suggestions? What am I missing?
VTAssault said:
I have a SGH-I337 (AT&T) that I'm trying to get to work with a Verizon sim. I followed the steps in the post below.
http://forum.xda-developers.com/gal...aranteed-free-sim-unlock-mk2-nb1-nc1-t2852979
I follow the steps as stated but at the end the phone has no signal/loses signal using Verizon sim's.
Usually after a fresh boot, the phone will have bars but no data and cannot make calls. The phone states EMERGENCY CALLS ONLY at this point. After a few minutes the service bars will disappear and be replaced with a NO SERVICE indicator.
The phone no longer indicates an invalid sim, but does not auto load APN settings. Manually inputting the Verizon APN settings does not fix it either.
I have checked and it does NOT show the NULL IMEI on the *#06#. Also with the Verizon sim the hidden menus don't always function (*#0011# and such) although I've read that is an AT&T only thing, I'm not sure if that true.
When I insert an AT&T Sim it gets service/data immediately upon booting. I've also tried two different Verizon sim cards.
Thoughts or Suggestions? What am I missing?
Click to expand...
Click to collapse
I don't own any Verizon phones myself, so I could be totally wrong but:
- Verizon's SIM cards are just for data.
- Verizon uses CDMA (Your subscriber identity is in the ESN/IMEI)
- AT&T uses GSM (Your subscriber identity is in the SIM)
Both networks require you to authenticate yourself with your subscriber identity before they will give you data access.
Sounds like Verizon doesn't have your IMEI, so the phone fails to authenticate/connect.
Try calling Verizon, tell them you got a new phone, and you would like to tell them the IMEI of the new one, so that it can connect to data services.
Either that or they need the number off the Verizon SIM
jdisco1 said:
I don't own any Verizon phones myself, so I could be totally wrong but:
- Verizon's SIM cards are just for data.
- Verizon uses CDMA (Your subscriber identity is in the ESN/IMEI)
- AT&T uses GSM (Your subscriber identity is in the SIM)
Both networks require you to authenticate yourself with your subscriber identity before they will give you data access.
Sounds like Verizon doesn't have your IMEI, so the phone fails to authenticate/connect.
Try calling Verizon, tell them you got a new phone, and you would like to tell them the IMEI of the new one, so that it can connect to data services.
Either that or they need the number off the Verizon SIM
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I really do hope it's this simple. I'll try it tomorrow and let you know if it works.
I've never heard of a gsm phone working on cdma. Is it even possible?
Airtioteclint said:
I've never heard of a gsm phone working on cdma. Is it even possible?
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Click to collapse
Me neither, but maybe since its unlocked? Plus it has an IMEI for Verizon to use...
jdisco1 said:
Me neither, but maybe since its unlocked? Plus it has an IMEI for Verizon to use...
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Click to collapse
It should be able to work with CDMA. I've seen the option in some of the menu's I've been through. And the guides have all said that they can work between AT&T and Verizon/T-Mobile or vice versa.
Also, AT&T will unlock the phone for you if you go to their website and fill out the stuff. The only reason I didn't do this is because I'm still under contract and I would have to break that and pay the early termination fee.
Hey S4ers,
So I recently gave my friend my S4 (i337) restored to NB1. She does not have an active data plan, but I figured since I'm giving her the phone, it wouldn't matter too much.
She used to have an unlocked T-Mobile Phone working on AT&T, just running it on the EDGE network.
Anyway long story short, she cannot receive MMS anymore after using this phone. The phone has signal, but does not display E, 2G, 3G, 4G, or LTE. Just the signal bars. So I ordered an unlock code and received it, thinking that if I unlock the SIM that she could get this functionality. I tried the #0111*CODE# method in the dialer and receive an incorrect MMI message. Are there any other methods to unlocking the phone with the code that I have? No root would be ideal, because she has everything all set up on it, but I am open to any suggestions, really. I was wondering if I am going down the correct path in enabling MMS, by unlocking the phone like her old one used to be, or if AT&T needs to be contacted.
FYI, when we set up the phone, we called AT&T to register the new SIM, and provided the IMEI number, is it possible that they turned off any functionality because it was a smart phone without a data plan?
Any help would be appreciated, thanks!
treyvaporizer said:
Hey S4ers,
So I recently gave my friend my S4 (i337) restored to NB1. She does not have an active data plan, but I figured since I'm giving her the phone, it wouldn't matter too much.
She used to have an unlocked T-Mobile Phone working on AT&T, just running it on the EDGE network.
Anyway long story short, she cannot receive MMS anymore after using this phone. The phone has signal, but does not display E, 2G, 3G, 4G, or LTE. Just the signal bars. So I ordered an unlock code and received it, thinking that if I unlock the SIM that she could get this functionality. I tried the #0111*CODE# method in the dialer and receive an incorrect MMI message. Are there any other methods to unlocking the phone with the code that I have? No root would be ideal, because she has everything all set up on it, but I am open to any suggestions, really. I was wondering if I am going down the correct path in enabling MMS, by unlocking the phone like her old one used to be, or if AT&T needs to be contacted.
FYI, when we set up the phone, we called AT&T to register the new SIM, and provided the IMEI number, is it possible that they turned off any functionality because it was a smart phone without a data plan?
Any help would be appreciated, thanks!
Click to expand...
Click to collapse
What carrier SIM is being used in it? Also check your APN settings.
She is on AT&T and the APN is good. We had to get a new micro sim
I have this Samsung s7 which was locked to sprint Which was sent to me in Nigeria. After the purchase , i tried the online team viewer unlock with a guy i saw on ebay. After the unlock process, the phone didn't show invalid sim like it did when i first bought the phone. But the issue is that the network strength and mobile data isnt showing but i can receive calls.,I can not dial ussd code. They turn out to be voice calls each time I try, i also see ' romaning indicator off' on the home screen instead of the name of the network (MTN). I need someone to come to my rescue.