[Q] No service on AT&T, works on T-Mobile - Galaxy S II Q&A, Help & Troubleshooting

No service / emergency calls only on AT&T.
Help please - on "new" unlocked GT-I9100, running SlimBean 4.2.2.build.7-OFFICIAL. This phone is for international use, but my sister-in-law is trying to use it in the states on AT&T prepaid. The phone gives all indication that it's unlocked successfully. Note that the same issue happened on 2.3.5 stock, so it's definitely not the ROM.
No signal or service on a new AT&T sim card (prepaid). Brought the card to the store, tried a different one, same issue.
Available networks: "AT&T" & "US". Clicking on either gives "Can't register on this network right now."
Tried a friend's T-Mobile SIM card, got weak service but was able to make a call successfully.
Running basebank I9100XXKI4. Had KI3 originally, same result.
ESN is clean and unmodified. Passed online ESN verification sites.
Any and all advice is appreciated!

What's the status on this??? I bought an s2 gt-i9100 of ebay. The phone works just fine with tmobile but stays on emergency mode with full bars on at&t. It's really weird since my tmobile sim is 7 years old and the at&t is only 2. Any help on this is appreciated.

Related

samsung vibrant not registering on t-mobile or simple mobile network

i bought a new in the box samsung vibrant off craigslist to use on simple mobile, i unlocked the vibrant it works on both at&t and H20 but not t-mobile or simple mobile. anyone out there have a solution i can't call t-mobile since i am not an account holder and advice would be appreciated
bad simcard or if the phone is registered on diferent carrier put timobile sim card and try to unlock your phone with it
its not the sim card it works fine in my mytouch 4g with simple mobile, the sim is not blocked i believe the phone must be block from system by imei
put the simcard in and unlock the phone again ! ! duhh
???????
bartek25 said:
put the simcard in and unlock the phone again ! ! duhh
Click to expand...
Click to collapse
sarcasim is a good thing but maybe you aren't comprehending what i am saying duhh!!
i own NSPRO box and have unlocked the galaxy S phones quite frequently, the phone is sim unlocked for any sim card or gsm carrier, what i am saying has nothing to do with unlocking with the sim card in( which i tried for ****s and giggles). the problem is the vibrant is not recognized on the network , i have tried my sim and several other t-mobile sims the phone doedn't receive signal on t-mobile network or simple mobile( which is a NVO of t-mobile)so what i am asking is does t-mobile block imei's from their network and is their a solution other then changing imei of the phone which i do not wish to do although i can change imei i will not since it is illegal.
the problem
let me clarify it actually says on the screen
"not registered on network"
anyway to register it on system???
its unlocked and works on at&t, h2o and all other gsm carriers except t-mobile and simple mobile
clone another imei, that will solve this problem, There is an app that allows you to give you a new I D # to your phone
I am same problem here everytime try to make call it says "Not Registered on the Network", SIM card works fine on different phone, also other SIM when inserted on Vibrant gives same message.
Under Settings> Wireless> Mobile network settings does not allow access...
Can someone help resolve this situation.
Thanks,
I am also
having the same problem. I purchased a used Vibrant from my friend whom defaulted on his bill so he sold his phone to me. When I attempt to use the T Mobile prepaid SIM or a regular T Mobile SIM it will not allow me to connect to the network. It stays on (Searching) or (No Service) but the date and time updates so I know it is connecting, just not able to use the network. Is there anyway to get around this problem or do I need to root and unlock to go to another carrier?
Hi guys I am having similar issue, please help
I was using bionix 1.3.1 by team whiskey, whats your advice do I change to ICS, will that solve the problem or simple radio upgrade will solve the matter? I have gone through several sites and found that this problem is with many android mobiles since last 2-3 years. Is there no solution to this yet! I have tried Airplane mode, removing battery, downloading autocut and all those basic methods but to no help ...
I have the same problem, did anybody find a solution?
I tried everything, flashed to stock, GB, ICS, JB.
My phone is unlocked and it only works on AT&T, the sim card is good, as I'm using it on my backup phone.
alberto02005 said:
I have the same problem, did anybody find a solution?
I tried everything, flashed to stock, GB, ICS, JB.
My phone is unlocked and it only works on AT&T, the sim card is good, as I'm using it on my backup phone.
Click to expand...
Click to collapse
So you have a T-Mobile sim that won't work on a vibrant?
???
samsgun357 said:
So you have a T-Mobile sim that won't work on a vibrant?
???
Click to expand...
Click to collapse
Same here. This all happened when I let my friend borrow my phone to put his SIM on it. It was a prepaid Simple Mobile SIM. It didn't work but after I went to put my SIM card back into my Vibrant, the phone never got service.
Funny thing is, my SIM works on one of my older phones, so I know the SIM still works, but my Vibe gets messages like "out of service" and "not registered on network" even through it still has some bars.
I think the problems relates to this thread: http://forum.xda-developers.com/showthread.php?p=37703090#post37703090
Somehow the bands on your device is messed up so you never get a signal. Not sure how to fix it but any solutions would be great.

[Q] s2 no network emergency calls only

I have a s2 unlocked I put o2 uk sim and I get no network same with voda tmobile and orange so my thinking is the phone as been blocked but thdn I put a 3 network sim in and the phone works fine makes and receives call I have debranded phone and updated via kies but still ssme so now im scratching my head
scot0114 said:
I have a s2 unlocked I put o2 uk sim and I get no network same with voda tmobile and orange so my thinking is the phone as been blocked but thdn I put a 3 network sim in and the phone works fine makes and receives call I have debranded phone and updated via kies but still ssme so now im scratching my head
Click to expand...
Click to collapse
I have the same problem, today i rang samsung uk to confirm the phone was good for uk and they did confirm it was a uk phone and they suggested that i ring various network providers to check the imei against their database, after spending a long time talking to various support teams in "lost or stolen " i ended up with all the networks saying phone was not known on their network as lost or barred so now i am in the same boat as you, mine has jb 412 installed.

In need of some assistance:I9300GSMH

Hello, First post here on Xda, Nice to meet you all.
I'm looking for some serious help with my new samsung galaxy S3GSMH International version.
Long story short, My girlfriend lives in germany, While on holiday there I purchased a samsung galaxy s3i9300 and was told it will work in any region any network due to being factory unlocked.
In germany I was using a sim card from VIVA mobile or something of the like and it worked fine.
After I returned home, I switched in my UK Vodafone sim card, A message then popped up saying, Please select sim service:vodafone UK/Vodafone UK prepaid.
So I chose Vodafone UK and clicked on OK, I thought everything was fine untill i tried to make a call and got, Not registered on network.
Now I have searched for days in all types of threads to get this fixed, I have tried flashing stock firmware with odin/emergency recovery Via Kies/Flashing modems/flashing patched modems/patched kernals/Ariza patch/Ariza patch Jb.
My Imei is fine and matches under the battery, The S/N also matches under the battery.
So I just don't understand it, If it asked me to choose which sim service surely that means it has some type of connection with the network? I have full signal bars too.
Is there anything else i need to do to get this working? Because I am at a loss, And I obviously can't take it back due to the shop being in germany
Any help or input is extremely appreciated!

[Q] Verizon Galaxy S4 - use on Fido (Canada)

I live in Toronto and am Fido customer. I was visiting my sister's family in Chicago over the weekend. While there, my brother-in-law gave me to use his Verizon Samsung Galaxy S4 (SCH-I545), which is a CDMA phone but also has a SIM card slot. I did some Internet search and, although the information is somewhat conflicting, most of the sources indicate that this particular CDMA phone is SIM unlocked to allow Verizon's customer traveling abroad where there is no CDMA coverage to be able to put a SIM card and use roaming. Or at least that's how I understood it.
Anyway, I put my Fido SIM card (luckily, in the same micro SIM format that the SCH-I545 required) and after changing the Setting > More networks > Mobile networks > Network mode to GSM/UMTS (the other two options being Global and LTE/CDMA), it connected just fine. It showed AT&T on the main screen (probably Fido's roaming partner in the US?). On the top bar it showed full bars connection indicator, with the letter "H" next to it. While in Chicago, I had my roaming data disabled so can't say if data worked, I also didn't really use the phone to talk (didn't have to), but I did receive a couple of texts from friends from Toronto. I also called my sister once (who is on T-Mobile). She didn't pick up, but later she saw a missed call from my Fido number. So I assume if she had picked up, we would have been able to talk. In other words, in Chicago my Canadian Fido SIM card seemed to have worked on this Verizon S4 through AT&T roaming.
Knowing that, I took the phone with me in Toronto. Here though it does NOT work with the same Fido SIM card. Shows empty triangle and no connection. It doesn't matter which of the tree options I choose under Network mode. If I manually search for available networks, it shows CAN Rogers Wireless, Bell and Telus. Since Fido is actually owned by Rogers and uses Rogers' towers, I select Rogers, but after sitting 5 minutes at "Registering on CAN Rogers Wireless", it says that the network was not available and it couldn't connect. I tried rebooting, wiping - no difference.
Can someone help me with making this phone work with Fido in Canada? Or may be educate me why it worked in Chicago and not here?
Update on this: I spent some time browsing the forum and now I have the phone rooted using Towelroot, also SafeStrap 3.72 and SuperSU 1.94 installed. SELinux is set to "Permissive". I have Odin 3.10 working fine and can easily go back and forth between MK2, NC2 and NC5, wipe or no-wipe . I was able to flash two other custom ROMS - DARTHSTALKER S4 VERSION X1 and Hyperdrive RLS18.1. Everything works fine, except I can't connect to my wireless provider. I tried with three SIM cards - Fido, Telus and Koodo and the result is the same for all - no connection, no bars (empty triangle), and a small sign next to it like "no entry". If I check under "About phone > Status", it says Network: Unknown; Signal 0 dBm, 99 asu, Mobile network type: Unknown; Service status: Out of service; Mobile network state: Disconnected.
Everything else appears to work just fine, inlcluding WIFI, GPS, etc.
There is one exception though - with the DarthStalker ROM I linked above I DO get some bars - floating between 1 and 4, never full. However still no service. Phone status shows the same.
I tried RegionLock Away v1.3 - no difference. Tried selecting different band using guides like this one - no difference too.
There MUST be something, possibly a very small thing, that's preventing this phone from connecting in Canada (remember, it worked in the US). But at this point I'm out of ideas. Anyone?
stfn74 said:
Update on this: I spent some time browsing the forum and now I have the phone rooted using Towelroot, also SafeStrap 3.72 and SuperSU 1.94 installed. SELinux is set to "Permissive". I have Odin 3.10 working fine and can easily go back and forth between MK2, NC2 and NC5, wipe or no-wipe . I was able to flash two other custom ROMS - DARTHSTALKER S4 VERSION X1 and Hyperdrive RLS18.1. Everything works fine, except I can't connect to my wireless provider. I tried with three SIM cards - Fido, Telus and Koodo and the result is the same for all - no connection, no bars (empty triangle), and a small sign next to it like "no entry". If I check under "About phone > Status", it says Network: Unknown; Signal 0 dBm, 99 asu, Mobile network type: Unknown; Service status: Out of service; Mobile network state: Disconnected.
Everything else appears to work just fine, inlcluding WIFI, GPS, etc.
There is one exception though - with the DarthStalker ROM I linked above I DO get some bars - floating between 1 and 4, never full. However still no service. Phone status shows the same.
I tried RegionLock Away v1.3 - no difference. Tried selecting different band using guides like this one - no difference too.
There MUST be something, possibly a very small thing, that's preventing this phone from connecting in Canada (remember, it worked in the US). But at this point I'm out of ideas. Anyone?
Click to expand...
Click to collapse
Did you input APN's after inserting the SIM's?
joshm.1219 said:
Did you input APN's after inserting the SIM's?
Click to expand...
Click to collapse
Yes, either manually or automatically in Darthstalker ROM. Forgot to mention that.
stfn74 said:
I live in Toronto and am Fido customer. I was visiting my sister's family in Chicago over the weekend. While there, my brother-in-law gave me to use his Verizon Samsung Galaxy S4 (SCH-I545), which is a CDMA phone but also has a SIM card slot. I did some Internet search and, although the information is somewhat conflicting, most of the sources indicate that this particular CDMA phone is SIM unlocked to allow Verizon's customer traveling abroad where there is no CDMA coverage to be able to put a SIM card and use roaming. Or at least that's how I understood it.
Anyway, I put my Fido SIM card (luckily, in the same micro SIM format that the SCH-I545 required) and after changing the Setting > More networks > Mobile networks > Network mode to GSM/UMTS (the other two options being Global and LTE/CDMA), it connected just fine. It showed AT&T on the main screen (probably Fido's roaming partner in the US?). On the top bar it showed full bars connection indicator, with the letter "H" next to it. While in Chicago, I had my roaming data disabled so can't say if data worked, I also didn't really use the phone to talk (didn't have to), but I did receive a couple of texts from friends from Toronto. I also called my sister once (who is on T-Mobile). She didn't pick up, but later she saw a missed call from my Fido number. So I assume if she had picked up, we would have been able to talk. In other words, in Chicago my Canadian Fido SIM card seemed to have worked on this Verizon S4 through AT&T roaming.
Knowing that, I took the phone with me in Toronto. Here though it does NOT work with the same Fido SIM card. Shows empty triangle and no connection. It doesn't matter which of the tree options I choose under Network mode. If I manually search for available networks, it shows CAN Rogers Wireless, Bell and Telus. Since Fido is actually owned by Rogers and uses Rogers' towers, I select Rogers, but after sitting 5 minutes at "Registering on CAN Rogers Wireless", it says that the network was not available and it couldn't connect. I tried rebooting, wiping - no difference.
Can someone help me with making this phone work with Fido in Canada? Or may be educate me why it worked in Chicago and not here?
Click to expand...
Click to collapse
Hi I just saw your thread. I have exactly the same issue as yours. Have you fixed the issue? How did you do it? Thanks.
---------- Post added at 11:19 PM ---------- Previous post was at 11:09 PM ----------
wenxianren said:
Hi I just saw your thread. I have exactly the same issue as yours. Have you fixed the issue? How did you do it? Thanks.
Click to expand...
Click to collapse
sorry, just saw your private message. my situation is: I bought it from the ebay, when I got it , I can use it in canada Chatr network without any problem. But the problem is one time I click the system update, then when I reboot the phone, it can't find the service just as you mentioned in the main thread. It's really strangle. Since it did work before. Maybe need to set in some place, but I never find the answer from the internet. too sad! :crying:

[Q] Gear S =Phone Not Allowed MM#6

Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
did you flash the entire firmware package?
I only flashed official firmware from ATT to TMOBILE.. That was all. If there are further steps please let me know.
I stopped at the firmware install because I thought anything extra would have just been for customizing themes, etc..
animegamemaster said:
Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
Click to expand...
Click to collapse
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
From my understanding, there are no levels of unlock permissions. Once a device is unlocked, it's done on all levels and access.
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
The unlock code needs to be entered on device while connected to the ATT network...not TM's. My initial suggestion is kindly call back ATT and with the correct IMEI/ATT Sim inserted, enter unlock code again. You may need to flash back to xxxA first.
My thought here is the phone isn't unlocked according to ATT's server's Device ID data...when you reestablished connection with ATT, it locked the device again.
[Q]
You said that you got the unlock code from ATT, with TM Sim inserted, and it was a success....
Why did you go back to the ATT Sim again if you had it working?
animegamemaster said:
Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
Click to expand...
Click to collapse
Try this. Go to phone dialer, type in *#2263# , dont hit call , just wait for the menu. When it comes up, select GSM band preference and if its an option, choose GSM 1800. Then swipe down to exit.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
mghtymse007 said:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
From my understanding, there are no levels of unlock permissions. Once a device is unlocked, it's done on all levels and access.
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
The unlock code needs to be entered on device while connected to the ATT network...not TM's. My initial suggestion is kindly call back ATT and with the correct IMEI/ATT Sim inserted, enter unlock code again. You may need to flash back to xxxA first.
My thought here is the phone isn't unlocked according to ATT's server's Device ID data...when you reestablished connection with ATT, it locked the device again.
[Q]
You said that you got the unlock code from ATT, with TM Sim inserted, and it was a success....
Why did you go back to the ATT Sim again if you had it working?
Click to expand...
Click to collapse
The unlock code worked. I was not prompted to enter another unlock code. I received success notification. I immediately got the error code that you see in the pictures. Could not dial out. So i went to ATT store for some hands on troubleshooting. But I will try to use the sim card idea you mentioned. I will come back with an update.
vacortina said:
Try this. Go to phone dialer, type in *#2263# , dont hit call , just wait for the menu. When it comes up, select GSM band preference and if its an option, choose GSM 1800. Then swipe down to exit.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Click to expand...
Click to collapse
This is a 'no-go' as well.. I will flash my firmware back to ATT and try it again.
Edit:
No, this did not work as well..
animegamemaster said:
The unlock code worked. I was not prompted to enter another unlock code. I received success notification. I immediately got the error code that you see in the pictures. Could not dial out. So i went to ATT store for some hands on troubleshooting. But I will try to use the sim card idea you mentioned. I will come back with an update.
Click to expand...
Click to collapse
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
1.Insert a Non-T-Mobile SIM & turn the Gear S ON.
2.The Gear S will automatically prompt you to enter the unlock code.
3.Tap in the unlock code provided by T-Mobile and click OK.
Note: The device should display code accepted
Click to expand...
Click to collapse
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
You most likely will not be able to use a North American S outside the US. It has nothing to do with the software...the frequency bands are different and hardcoded. You may want to check and see what bands are used by the providers in VN for cellular ie: 2G, 3G, etc and compare those to what US/Sprint uses.
I have the same issues with the GPS. Even when I'm outside, in an open area I can't even get the weather app to update. Not sure how many people have this issue, but it doesn't seem to be a topic of discussion on XDA.
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
---------- Post added at 02:15 PM ---------- Previous post was at 02:12 PM ----------
animegamemaster said:
This is a 'no-go' as well.. I will flash my firmware back to ATT and try it again.
Edit:
No, this did not work as well..
Click to expand...
Click to collapse
Have you tried rooting?
http://forum.xda-developers.com/showthread.php?t=2977581
Thanks to cipherswitch
This is from "CELLUNLOCKER" where I got my unlock code...before it was free...lol....... When I click on the t mobile for network....I get "registered to networkk" popup with my ATT GS. When I call a number I get the tmobile cust servc help line...... since I am not a tmobile cust.
I cannot remember which method I used....but I can go with att or tmobile sims with no issues. Right now I have H20 as my carrier, on the ATT network...but at least I know I can go to the Tmobile network or carriers anytime
How to enter unlock codes on all Samsung models
Different phones have different Unlock Code Input Instructions, Try the following Instructions in order:
Note: Non Accepted Simcard is any simcard not from the original provider
Method #1 Insert a Non accepted simcard in your phone and power on. Once finished loading your phone will ask you to enter a code, enter the Unlock Code
OR
Method #2 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (8 digit unlock code)
OR
Method #3 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (8 digit unlock code)
OR
Method #4 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code.
When this method is used for newer Samsung phones, it will say "unsuccessful" regardless of the phone being unlocked or not.
Phone Not Allowed MM#6 Tmobile- A clue to problem?
I also have the same problem...it is frustrating.
i have an unlocked AT&T Gear S ( unlocked thru one of the unlock ebay sites. it seemed to go well, and worked)
i setup account with Tmobile, and it worked, i have had it about 2 months, all OK, until..
i took out SIM to test with my unlocked IPHONE 6+, (i have been thinking of switching all my phones to Tmobile) it also worked OK,
Then i swicthed it back into the Gear S, and the trouble started (unless it was a conincidence),
'Phone not allowed MM#6', it tried everything.
1. reset Gear
2.rebooted thru the gear boot menu
-i called Tmobile, they did not have answer,m they asked me to try a new SIM, which i did online and updated account with new SIM,
same problem.
3.Tmo said maybe not complety unlocked to contact AT&T but i doubted this,
4. I tried a freinds SIM from his Iphone 6+ (on Tmo) it worked great in my Gear Sm and my 'unlocked Ipphone 6'
5. i tried my Gear S SIM in my Iphone, message poped up 'Phone not allowed' (this time no MM#6)
6. called Tmo again (maybe 3rd time) suggested another new SIM card, they everything on there end looks fine, they checked imei, sim card etc, all OK.
i told them from what i have read the forums mentioned a network problem, not a phone problem.
They connected with Samsung, they said they can try reflashing the Gear S, if i send it in to them,
7. i called Tmo again, and i spoke one rep who , GAVE ME A CLUE TO PROBLEM.. he found a note concerning the Gear S,
it said if the user puts the Gear S SIM cards (wiith the 'wearable plan') into another phone, it will block the account until the user reinstalls SIM into Gear S.
8. if this the problem, iit is not reseting itself when SIM is back in Gear S.
9. Not sure what to do next.
the last Tmo rep told to go into Tmo store, and they will try another new SIM, and ask them to try new SIM and my in anoother Gear S, but it seems many tmo stores dont have Gear S on hand, only display it am checking.
10. One idea may be to close the whole account and open new account for the Gear S.
did anybody have luck with this problem?
perdikoylis said:
I also have the same problem...it is frustrating.
i have an unlocked AT&T Gear S ( unlocked thru one of the unlock ebay sites. it seemed to go well, and worked)
i setup account with Tmobile, and it worked, i have had it about 2 months, all OK, until..
i took out SIM to test with my unlocked IPHONE 6+, (i have been thinking of switching all my phones to Tmobile) it also worked OK,
Then i swicthed it back into the Gear S, and the trouble started (unless it was a conincidence),
'Phone not allowed MM#6', it tried everything.
1. reset Gear
2.rebooted thru the gear boot menu
-i called Tmobile, they did not have answer,m they asked me to try a new SIM, which i did online and updated account with new SIM,
same problem.
3.Tmo said maybe not complety unlocked to contact AT&T but i doubted this,
4. I tried a freinds SIM from his Iphone 6+ (on Tmo) it worked great in my Gear Sm and my 'unlocked Ipphone 6'
5. i tried my Gear S SIM in my Iphone, message poped up 'Phone not allowed' (this time no MM#6)
6. called Tmo again (maybe 3rd time) suggested another new SIM card, they everything on there end looks fine, they checked imei, sim card etc, all OK.
i told them from what i have read the forums mentioned a network problem, not a phone problem.
They connected with Samsung, they said they can try reflashing the Gear S, if i send it in to them,
7. i called Tmo again, and i spoke one rep who , GAVE ME A CLUE TO PROBLEM.. he found a note concerning the Gear S,
it said if the user puts the Gear S SIM cards (wiith the 'wearable plan') into another phone, it will block the account until the user reinstalls SIM into Gear S.
8. if this the problem, iit is not reseting itself when SIM is back in Gear S.
9. Not sure what to do next.
the last Tmo rep told to go into Tmo store, and they will try another new SIM, and ask them to try new SIM and my in anoother Gear S, but it seems many tmo stores dont have Gear S on hand, only display it am checking.
10. One idea may be to close the whole account and open new account for the Gear S.
did anybody have luck with this problem?
Click to expand...
Click to collapse
Call tmo back and have them make sure you have the right data plan I had the same problem and mine was on a tablet data plan not mobile/watch plan
I am experiencing a similar issue with TMobile. My thread is in here, http://forum.xda-developers.com/gear-s/help/gear-s-longer-able-to-register-tmobiles-t3040635
I have the factory unlocked international version, SM-R750W, and several people here said it wouldn't work. It worked perfectly for a day, then nothing. New SIM, it worked perfectly again for maybe 5 minutes.
HagbardCelineII said:
I am experiencing a similar issue with TMobile. My thread is in here, http://forum.xda-developers.com/gear-s/help/gear-s-longer-able-to-register-tmobiles-t3040635
I have the factory unlocked international version, SM-R750W, and several people here said it wouldn't work. It worked perfectly for a day, then nothing. New SIM, it worked perfectly again for maybe 5 minutes.
Click to expand...
Click to collapse
Still no luck, but maybe a couple more clues;
1. As the tech support advised, I went to a Tmo store, and they swapped the nano sim , no help.
2. I put in a sim from my friends tmo iPhone. It seemed great.
3. I called tech support back, they escalated problem to the engineering dept,
Said it may take 2 days to hear back...... So far no luck, please let me know if you have better results.
(I did check the plan online and with support to be sure it was correct.- the wearable / watch plan)
I feel it has something to do with there network 'rejecting' my imeo, but support checked that several times, as said it is correct.
perdikoylis said:
Still no luck, but maybe a couple more clues;
1. As the tech support advised, I went to a Tmo store, and they swapped the nano sim , no help.
2. I put in a sim from my friends tmo iPhone. It seemed great.
3. I called tech support back, they escalated problem to the engineering dept,
Said it may take 2 days to hear back...... So far no luck, please let me know if you have better results.
(I did check the plan online and with support to be sure it was correct.- the wearable / watch plan)
I feel it has something to do with there network 'rejecting' my imeo, but support checked that several times, as said it is correct.
Click to expand...
Click to collapse
They escalated my situation as soon as I called them on Tuesday and told me 3 days. Nothing yet.
Have you used the Tmobile IMEI check? http://www.t-mobile.com/verifyIMEI.aspx
I just tried it and it doesn't recognize my IMEI....But if that was going to be a problem, shouldn't that have meant it would never work? I can't think of any reason it would work for a day before they shut it off.
I had same result "did not recognize" with there Imei checker, further, the support reps checked several times and said it is Ok, My gear s is an unlocked AT&T, it did work for the first 2 months (until I removed sim to test in my iPhone ( I was considering switching all my phones to Tmo) Maybe coincidence? + But with a friends sim (from his iPhone ) it worked immediately , it even populated the Apn etc settings, but i did not leave on more than 1-2 minutes to test.
When I put my sim back in, it does not register, it does even show phone number, says:
"Phone not allowed MM#6" and emergency calls only.
I had this same issue come up. The way I solved it was to close out the account for my phone number tied to the watch wearable plan. And then I created a new phone account for the wearable plan with a new number. And got a new sim card from T-Mobile at the time of creating the new wearable plan / number. It seems that the phone number that was previously tied to my galaxy gear s was not blacklisted, but the services were limited on it because I had taken the sim card out of the gear s watch and put it into a cell phone to test if there was service on it. So that flagged the wearable phone number account like I was trying to steal data/phone service from T-Mobile by using the only $15 / month plan on an actual phone. Like said above, the services are supposed to be restored once you put the sim back into the watch, but there is a bug with T-Mobile's service in doing so. So in the end, I closed out the "flagged" account, opened a new account and will never put the sim card into a phone again in the future.
same the issue
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
Hi...I have same the issue...now are you solve? You can help me this issue?...thank you
A good looking digital watch
zztoine said:
Hi...I have same the issue...now are you solve? You can help me this issue?...thank you
Click to expand...
Click to collapse
No, i follow this guide to try some features of the Gear S. But my phone become sluggish, and the GPS still not work.
http://forum.xda-developers.com/gea...ll-gear-manager-connect-t2934307/post60592795
So, right now, the Gear S is just a digital watch to me, ha ha.
The error is specifically a sim/network error unfortunately and more importantly this;
9 out of 10 times MM6 error means the phone has been reported lost/stolen and the IMEI has been network blocked.
Here are a few options that could be causing most of the issues I have read;
At&t is NOT open and a fan of allowing devices outside their network. Therefore its possible your device is literally reported as lost/and or locked to at&t and they dont want it on T-Mobile. And your best bet is to raise hell threating an investigation by the FCC.
At&t re-locked your device when att sim is put in.

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