Database Develop

AT&T locking handsets to accounts?

I just recently upgraded my 8525 to a Tilt, and gave the 8525 to my son. When he swapped his sim card from his Touch to the 8525 it would always show the signal strength with an exclamation point and the data connection had an 'X'. I tried my sim card with it, and got the same results.
I took the phone to the AT&T store and the rep said that AT&T now lets you use only the handset that you have associated with your account. He clicked on a few screens, then the 8525 was able to get and hold a connection using my sons sim card.
He said this is something that AT&T just started in the last week. So much for swapping handsets.....

this is a lie.. i swap between 8525/tilt

jakeypoo said:
this is a lie.. i swap between 8525/tilt
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agreed...mods please close this thread

NOT true. My SIM works in both my 8525 and my Tilt.

Doug2873 said:
agreed...mods please close this thread
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man, that's harsh. Just fishing for more info. Is there something else I should have done?

More like trolling...
Think about it - what possible benefit would AT&T get by locking a handset to a SIM card? NONE! They would have a lot of pissed off customers.
Your son's card was probably disabled and he re-enabled it.

AT&T Sim cards
Might just be that your son's sim card is one of the old 56k Cingular cards and he needed to get a newer 64k card for medianet and 3g to work in the 8525. All he would have to do is call AT&T and they would send him a new card for his account. Don't be fooled by what someone that works in a AT&T store say's to you. One would assume that they know what they are talking about, that is wishfull thinking!!!

my son's sim card was not a 3g card, but mine is. the phone wouldn't work with mine either. when we went to the store we got a 3g card for my son.
i've switched sims between handsets quite a bit, but this time was the first I experienced a phone that wouldn't work. it doesn't make sense that AT&T would do something like this, that's why i posted here for your comments. and cheers to those that chimed in...thanks.

You know, when I tested your theory tonight, I noticed I had a harder time inserting my SIM into my 8525 than into my Tilt. Maybe it wasn't fully seated? The slot is configured different and I had to push harder to get it into the 8525. The first time I booted it I got no signal until I reseated the SIM.
I rarely swap SIMs so I would not notice this normally...

i work @ ATT and i can say that alot of time reps do talk out of their asses my co-workers do it all the time if they do\nt know something or they ask me.. but att hasnt been locking handsetes to sim i swap between my 8525 BJ V3x
SYNC BB pearl and slvr all the time with no problem. g/f does the same thing i do just not as many phones as i do

Virtual SIM card?

Hi,
So I was thinking, is it possible with some driver may be to make a virtual copy of a physical SIM card, possibly copy 3-4 cards and make the phone work in multi-card mode without the need of SIM cards being physically present?

now that would be nice, a great idea, im pretty sure someone could make something like this since like other phones like sprint dont have a sim card sometimes are programed directly to the phone maybe its the same prosses.
also would make it easier for many like me that have 2 or more sim cards i myself have a T-Mobile (US) and Movistar (Mex.) sim cards and its a bother to have to change them when visiting like right now im in Mexico at the moment.
but it also would bring up another problem to have something like that.
for example someone gets your sim card (if you dont know anything about such program and if made) and someone with mischeif on their minds saves your sim information and uses it as they please. (then again. its just like stealing your phone, you would call your provider and disactivate it so no further charges would apply the second you knew that something was up. its just harder to know since you would have to wait till the bill comes in)
but if at all possible i would use it for good. would be nice

tombrighteyes said:
now that would be nice, a great idea, im pretty sure someone could make something like this since like other phones like sprint dont have a sim card sometimes are programed directly to the phone maybe its the same prosses.
also would make it easier for many like me that have 2 or more sim cards i myself have a T-Mobile (US) and Movistar (Mex.) sim cards and its a bother to have to change them when visiting like right now im in Mexico at the moment.
but it also would bring up another problem to have something like that.
for example someone gets your sim card (if you dont know anything about such program and if made) and someone with mischeif on their minds saves your sim information and uses it as they please. (then again. its just like stealing your phone, you would call your provider and disactivate it so no further charges would apply the second you knew that something was up. its just harder to know since you would have to wait till the bill comes in)
but if at all possible i would use it for good. would be nice
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Indeed, i hope it is possible. I dont think theft would be any problem at all, because the gsm network should not accept simultaneous login from the same SIM card. It just makes sense to be this way. I myself have to use up to 5 cards and growing. Ultimately, virtual SIM cards would also enable purchasing cards from the internet and also cheapest route selection, things like this..

point made.
you have a point.
i forgot about the network not allowing you to have two at the same time.
but yeah then again, it shouldn't be much of a problem i think. 5 cards is alot.
but you're right if such a program where made, it would open the market so mucho more and one could actually buy online sim card info. and if this program where made, one could save the info to the phone then back it up to a computer (where it's safe, most of the time atleast) and maybe the same program could write back to a sim card thats not activated (for purposes just as loosing a sim card, but not the info.) now there's an idea for ya.
would be super nice!
too bad i have no clue on how to program such things, but ideas i have
if anyone takes the challenge to create it, if at all possible i would gladly donate since i would use it surely.

Possible, but..
It's possible if you have the Ki and IMSI values from your SIM. The IMSI is easy, but cracking the Ki is only possible in old SIM cards, using COMP128-1 encryption.
All the SIM cloning tools on eBay can clone only these old cards.

A virtual sim card is a really cool idea. No more swapping sim cards between you primairy phone and your backup phone... (I only have only one sim)

kolomparrudi said:
It's possible if you have the Ki and IMSI values from your SIM. The IMSI is easy, but cracking the Ki is only possible in old SIM cards, using COMP128-1 encryption.
All the SIM cloning tools on eBay can clone only these old cards.
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IMSI can be be read with an nokia e51 using the blackberry connect softwre. you can see the imsi value in the programe info where you must enter to view you PIN.

emilgaig said:
IMSI can be be read with an nokia e51 using the blackberry connect softwre. you can see the imsi value in the programe info where you must enter to view you PIN.
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Hi
No they give you the IMEI number not the IMSI.
The problem you would have is that sooner or later the networks would block your phone because they will see the fact that your phone is running 4-5 mobile numbers with ONE IMEI no. Ebay is littered with Cheap dual active SIM phones. They only have one IMEI and sooner or later the network(s) will switch off your phone.
The way round this is to have 2 IMEI numbers to run 2 sim cards at the same time...abit like the Samsung D880. This basically means you have 2 phones with 1 screen and 1 keypad...i have one and i know these work great!!.
Regards
Wasim

The will not block you for changin sims, right?
And also GSM won't allow you to register simulteniously two sims, only one at a time...
Cos TD has only ONE GSM inside, not two as Samsung DuoS

What the progress of the topic, people?

I certainly hope this is not possible. I wouldn't want to know anyone can copy and use my simcard. That would be an unacceptable breach of security for any mobile phone user.

This might be a good breach, and it exists, just need a tool to use it with windows mobile! I can even now COPY MY SIM to another sim, yes - it's need a liitle crack with it, but card itself intact, and i can have a copy
So - What are solutions now for windows mobile?

i really like to know if it is possible. but i dont think an emulator is a must because in ppc we can easly turn off the cellular connection and turn it on again. that way (if you've used old 3in1 sim cards, you'd know) you can change the operator. every time you restarted the gsm connection, your operator will change.
and what about connecting to more-than-one operator at the same time?
cheers

and what about connecting to more-than-one operator at the same time?
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that function is not possible (c) Thor, Stargate SG-1

pedmond said:
I certainly hope this is not possible. I wouldn't want to know anyone can copy and use my simcard. That would be an unacceptable breach of security for any mobile phone user.
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I am in Saudi & have 3 sim cards(STC) with the same number. One in my laptop, One in my Samsung, one in my Diamond. All work for internet at the same time to use for phone I activate by *123$ (this is then primary card for incoming & texts). When in Spain I have 2 cards(Movistar) both of these work & ring at the same time, but text messages only goes to one of them.

Virtual Sim Card
hello ladies and gentleman this is a very good idea i was thinking about the same idea today... In the virtual sim card there should be a tracking device installed in the phone so that when it is stolen you can track down the phone or the company can switch of the phone and it will have no use and all your data is safe... I am all the way in africa Botswana and my name is delmar dube i am willing to do more research on this because i want to see it come true

I would be surprised if this was possible... the GSM chipset firmware is pretty much sealed off from a phone's operating system except for the AT command interface. Otherwise people would be able to fiddle with transmit power which would invalidate the phone's FCC/etc certifications.

Any progress??
Heyy like most on this forum thread I just thought of this last night, I have an unlimited plan with Wind Mobile (who's coverage is um.... not great) with Unlimited internet and talking and texting for $29/mo. Unfortunately I spend the majority of my time outside their current coverage area, and would like to get one of Telus' "One Number Unlimited" voice plan ($7/mo) for when I'm outside of Wind's area but still want to call my girlfriend. Virutal Switchable SIM cards would be a great solution since my phone doesn't exactly like to co-operate with me when I try to turn it on after having the battery removed to get access to the SIM slot. Plus I don't want to be carrying around a little tiny piece of plastic that'll give me chaos if I ever lost it.
Anyways I'm running a Samsung Galaxy Exhibit 4g (4g is the name of the phone, it's just LTE of 3G though), It's running ICS 4.*something.
Oh yeah, sorry for being a grave-digger

I love this idea. I mean apple now has patents for virtual simcards, I really hope the android market follows suit. I have 6 sim cards and counting (Afghanistan, Switzerland, United States, Korea, Philippines, and UAE), and would love to be able to purchase and activate my "virtual sim card" off of say the Google Play Store, prior to flying into a country.
I wouldn't mind some kind of DRM or whatnot, just being able to buy service before I go into country, and then have calling and data capabilities as soon as I walk off the plane would be worth it.

I have a korean Galaxy S2, which has the sim tray damaged, being impossible to connect any SIM card.
If I could use virtually my SIM card, I coud use this phone.
Is this possible??
I just wanted to use one SIM card just for phone calls, dont even need services like internet...

[Q] Why isn’t sim card being recognized?

Hey all, I’m having problems with my sim card not working, my Captivate doesn’t recognize it at all. I got this captivate to hold on to from my older brother who is currently serving overseas (not possible for him to use phone) a few months ago. When I got it, I rooted it, sim unlocked it (I have t-mobile), and got to flash roms and have fun with it thanks to you good folks on these forums.
About 2 weeks ago, the speaker was issues that really bothered me(had to keep tapping it in to get It to work) so I decided to send it over to Samsung to fix. The phone was still under warranty, so it cost nothing to fix fortunately. I just got it back yesterday, and since then my t-mobile sim card would not work. I rooted, sim unlocked, and flashed many different roms and still not working. Its as if the phone thinks there is no sim card at all (“No SIM Card Emergency Calls Only”). I also tried this app called Samservmode, and enabled all bands (GSM/WCDMA) to see if it would work; it didn’t.
I was ready to call Samsung again, but when I went over to my friend’s house and tried his att sim card; it worked perfectly and I was able to send texts and make calls. So something must be wrong with my sim card, it works perfectly on my g1 though (my backup phone that was used while Captivate was away). I was able to use the same t-mobile sim for a few months in a row before I sent it to Samsung, isn’t this possible for me to do it again? Any advice on doing so would be much appreciated; thanks.
P.S. My t-mobile sim card is prepaid if that matters, so I don’t use 3g or edge or any data networks.
Also my current setup (if it even helps, I've been flashing between froyo and ginger nonstop trying to fix this issue)
Firmware: 2.2
Baseband: I897UCKB1
Kernel: 2.6.32.9
Phone number and network is unknown
Mobile network type: HSDPA
Service state: Out of service
Roaming: Not roaming
Mobile network state: Disconnected
Everything else works pretty fine on this phone (wifi, bluetooth, etc.)

UPDATE: I went back to my friend's place and with his att sim card in, I tried adding a t-mobile APN based on
http://forum.xda-developers.com/showthread.php?t=744535
Unfortunately this did not resolve the issue. I did this with his att sim card because when there is no sim (or in my case, my tmobile sim) in the phone, you can't access mobile networks in settings.
I am also currently on stock I897UCKH3

UPDATE 2: So I just tried my other friends t-mobile sim card (that is on a plan) and the captivate had service; was able to make calls and text. My prepaid sim card seems to be the culprit here. I don't understand because as I tested my friends sim card on the captivate, I also put my sim card in his iphone 3gs (unlocked) and it worked fine there. Is the captivate on strike against my sim card or something? I'm going to try calling t-mobile tomorrow (doubt they'll help since the captivate isn't their phone) and see if anything can be done. In the meantime if you guys have any advice, I'm all ears.

UPDATE 3 (This is getting kind of annoying): I just got off the phone with both Samsung and T-mobile and both of them don't know what to think. I'm beginning to think this is a special case and this problem only occurred to a very few amount of people. If anyone can help with suggestions I would be very grateful. I'm thinking about going to a t-mobile store today to see what they think, maybe seeing the issue in person would help in their perspective.

Doubt anyone is going to answer or even post, but here goes:
BUMP
I also went back to stock and followed this guide:
http://forum.xda-developers.com/showthread.php?t=881162
with no success.

You try getting a new sim card?
Sent from my I897 using xda premium

Does T-Mobile have any policy of replacing prepaid sim cards? If so, that sounds like your best option. Also, Samsung might have been angry at you cheating their system, and purposefully disabled your sim card. Make sure you take out your sim before sending it back for repair.

Thanks for the reply guys, much appreciated. I decided to just live with it and keep the captivate as a galaxy s wifi if you will for media purposes only like an ipod touch. My g1 will be a phone. Once the nexus prime comes out I will start up a contract and finally experience 4g speeds and w/e else I can get with a contract thats not available on prepaid.
Also I did not send Samsung the phone with the sim card in, idk how they must've known to block it. Thanks again.

[Q] Does HTC G1 work without a Data Plan?

basically i want to get a tmobile prepaid payasyougo plan with 1000 minutes for $100. i was looking for gsm phones and found the G1. i would like to know if i buy a new G1 on ebay for like $100 will i be able to just put the tmobile sim card inside and activate the phone? or do i need to get a tmobile sim card with a data plan on it? basically i want to know if i can use the G1 for just voice calls on a prepaid sim card. i also would like to know if i can use the wifi to connect to my router, or is that blocked unless i have a data plan? are any features in the G1 disabled if i put in a sim card without a data plan? i plan on using the G1 for only voice calls and browsing the web on my home wifi. can this be done on this phone? thanks for your help in advance

http://wiki.cyanogenmod.com/wiki/Google_Login_via_a_WiFi_Connection
There ya go
Btw, I wouldn't pay 100 for a G1. I got mine for 15 bucks used.

if your g1 isnt rooted than no, the stock g1 wont let you sign in without a plan unless you borrow someone's sim card set it up and then change out sims, what you want to do is get one, root it (probably need someones card to do this) flash a rom (many are far better then stock) and when it comes time to sign in it wont madder what tmobile sim car you have in there. and if you unlock the phone you can put in just about any sim card (rooting will not unlock the phone) good luck! oh by the way if you cant borrow a card, try to buy one that is allready rooted for you, if you check ebay you'll be sure to find one, hell i sell some on ebay that are ready to go. oh and yes you can use wifi.

I got a G1 from stock no sim to cm6 working fully...all without sim
The thing I posted above does NOT need root...
You may have to downgrade, but that doesn't need root...
Try the following...on the emergency dialer type <enter>reboot<enter>
If it reboots congrats, the wifi thing will work
If not, you need to downgrade....but don't worry its not too hard
I can help you through it most likely
Sent from my HTC Dream using Tapatalk

The easiest way is to type in on google "how to bypass google login on g1 the unlockr" tells you everything step by step

Straight Talk And Sprint Cluster F HTc One $ S3

So i wanted to do the BYOP with straight talk.. Went to the store got a BYOP Kit $59 and another 1 month $45 Card. Then (after checkin straight talk's MEID check on there site) Checked the MEID of the Samsung S3.. Went thru the activation process and it went thru fine.. Phone Didnt work. It was stock no root ect. Well... I suspected maybe there was a lost/stolen or past due so i called sprint and after 4 attempts and some social engineering that SWIM is not and is proud of was able to determine there is 249 balance and they wont release the phone .. The guy lied to me and said it was deavticated and free and clear. Great.
So yesterday I find a HTC one with a cracked screen but still works.. Great. I run the MEID thru straight talk and Sprint and its good and clear.. Awesome no past due's everything is ok.
Get home tried using the Tmobile Micro Sim and completed the activation process and it goes thru ok! (Dont you love how they make ya feel warm n fuzzy..) I go into the setting on the HTC one and change the mobile data between 4g lte Cdma to gsm and then do the root and sim unlock running viper and get the hidden menu and via *#*#4636#*#* and change the settings to WCDMA GSM ONLY Gsm Auto Prl.. And nothing..
Then spent 2 hours on the phone with Straight talk, got them to cancle out the Tmobile sim and Activated a Att Mirco Sim (They Said it would be better coverage ect) And still Notta.. I got a Htc One 32gb Boot Loader Unlocked (Presumably SIM Unlock) and Rooted and Would really like to get it working on Straigh talk.. I have seen a couple of people on here that have accomplised this But cant get a response from them how they did it.
I really need a working phone cause of the kids, ect. Does anyone have any ideas?
I also have seen how some of these knock off MVNO's say that a past due bal isnt a issue and they can flash a Sprint phone No Issue.. But seems like the S3 wont work unless someone knows of a sure fire place that can do it.
Or getting my HTC ONE to work on a Sprint MVNO but im assuming they will want a UICC# or Sprint 4g Mico Sim card number. And I dont know how to get one of those or who might have them.
Any one have any solutions how i can accomplish getting a working Phone preferably with 4g.. Id even trade these damn things out at this point. I would most likely like to get that HTC One on Sprint thats been unlocked to work with straight talk using its International Capabilities and the ATT Micro Sim that is now active and registered because i have 3 months paid thru them.. Any ideas?

Mortland said:
So i wanted to do the BYOP with straight talk.. Went to the store got a BYOP Kit $59 and another 1 month $45 Card. Then (after checkin straight talk's MEID check on there site) Checked the MEID of the Samsung S3.. Went thru the activation process and it went thru fine.. Phone Didnt work. It was stock no root ect. Well... I suspected maybe there was a lost/stolen or past due so i called sprint and after 4 attempts and some social engineering that SWIM is not and is proud of was able to determine there is 249 balance and they wont release the phone .. The guy lied to me and said it was deavticated and free and clear. Great.
So yesterday I find a HTC one with a cracked screen but still works.. Great. I run the MEID thru straight talk and Sprint and its good and clear.. Awesome no past due's everything is ok.
Get home tried using the Tmobile Micro Sim and completed the activation process and it goes thru ok! (Dont you love how they make ya feel warm n fuzzy..) I go into the setting on the HTC one and change the mobile data between 4g lte Cdma to gsm and then do the root and sim unlock running viper and get the hidden menu and via *#*#4636#*#* and change the settings to WCDMA GSM ONLY Gsm Auto Prl.. And nothing..
Then spent 2 hours on the phone with Straight talk, got them to cancle out the Tmobile sim and Activated a Att Mirco Sim (They Said it would be better coverage ect) And still Notta.. I got a Htc One 32gb Boot Loader Unlocked (Presumably SIM Unlock) and Rooted and Would really like to get it working on Straigh talk.. I have seen a couple of people on here that have accomplised this But cant get a response from them how they did it.
I really need a working phone cause of the kids, ect. Does anyone have any ideas?
I also have seen how some of these knock off MVNO's say that a past due bal isnt a issue and they can flash a Sprint phone No Issue.. But seems like the S3 wont work unless someone knows of a sure fire place that can do it.
Or getting my HTC ONE to work on a Sprint MVNO but im assuming they will want a UICC# or Sprint 4g Mico Sim card number. And I dont know how to get one of those or who might have them.
Any one have any solutions how i can accomplish getting a working Phone preferably with 4g.. Id even trade these damn things out at this point. I would most likely like to get that HTC One on Sprint thats been unlocked to work with straight talk using its International Capabilities and the ATT Micro Sim that is now active and registered because i have 3 months paid thru them.. Any ideas?
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Always make sure you check the imei of all phones you purchase. You mine as well flash it to cricketr or page plus. Also you can get edge speed with AT&T gs3 on straight talk