AT&T sgh i747 will not read SIM cards - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hi I've been looking to xda for quite some time now for advice and help when I get stuck. First wanna say thank you! But I'm a new member so please correct me if I am posting in the wrong place or reposting. I'm aware that this is not a new problem, however, I have read till my eyes are bleeding and can't seem to find a fix. I have an sgh i747 AT&T gs3. I feel that this topic is unique in the fact that I have not rooted, flashed, altered or in any other way attempted to change this device. My fiance got the phone from her mom and I was going to try to use it with a straighttalk byop SIM kit. After activating the proper SIM with st the device would not recognize the SIM. I am now using that SIM in another phone. I get a constant ongoing notification in the notifications bar that says No SIM Insert SIM card. The device status is official and I have (as far as I know) stock ota updated 4.3 jellybean. When I insert a SIM into the device it doesn't prompt me to enter an unlock code. The only other SIM I tried to use is a sprint SIM card out of my freedompop lg volt. Don't know if that's compatible or not but I tried it and still the i747 acts as though it doesn't realize I've inserted a SIM. I called AT&T and emailed them. All I was able to give them was the imei as the phone number in my settings is unknown. The imei under my battery matches the imei in my device settings. They emailed me back within a few hours with my network unlock code and instructions for unlock. I haven't been able to use the code as my phone never prompts for the input of the code... I called them back later (this all happened earlier today) and spoke with a gentleman in tech support. I told him what was going on and asked him some questions. After doing a lot of research I started thinking that maybe my phone was already unlocked. Asked him to run the imei and said that it DID show unlocked on his end. That's one of my questions, if I still have an imei in my settings is this device still locked? The tech from AT&T told me it was probably the phone that was broke and I need a new SIM reader installed, to call Samsung. I tried to slide a little piece of paper in on top of the SIM that didn't work. I tried the dial code *#197328640# method, even though most posts say you must be 4.1.1 there are some who claim that it works on other versions. I tried a couple variations of this to no avail. I'm not sure what I'm overlooking here. If I'm leaving out any info that is needed to answer this post I'd be happy to include it just let me know. I need some fresh eyes on this thing it's driving me crazy I wanna get it fixed. I'm under the impression that I shouldn't attempt to downgrade this android version or I'll brick it... what the hecks goin on with this phone?! And again, sorry if I'm reposting but I can't find anyone who has posted yet that hasn't altered their device software in one way or another. I believe this s3 is completely official at this point. Thanks for any help you can offer

Is an sdcard recognized?
Was the phone ever used with a sim adapter? Sometimes, inserting and removing the sim adapter can damage the sim reader. Cheapest solution may be to purchase a new sim reader from eBay.

Sdcard works fine... and I'm pretty sure it's never been used with a SIM adapter

It's possible the sim reader has failed. Don't think you'll kn for sure until you are change the sim reader.

Yeeeah... I think I'm gonna attempt to change it right now and see what happens. I'll post back with the results. Thanks guys!

Fixed! Replaced sim port with spare one from an s3 sch I535 I had laying in the junk drawer with a broken LCD display. Posting this from my i747 on straight talk 4g. Sweet!

Glad it worked for you.

Yes and thank you again for responding to my post. This s3 is now rooted and titanium backed! Now excited to attempt to flash cyanogen mod later this evening. Thanks again and take care!

Related

[Q] New T989 never receive unlock message

I have a new T989 I bought without a contract. I have a Simple Mobile sim card. I have rooted and installed Juggernaut Rom. Before I rooted and now no changes in the fact when I install any sim I get no message of invalid or a place to enter unlock code.I know SM is suppose to work without unlock. But I havent been able to get SM to work at all. Do i need to flash another rom, because it seems that Im locked into Tmobile so far. Any help much appreciated!
cablemeblind said:
I have a new T989 I bought without a contract. I have a Simple Mobile sim card. I have rooted and installed Juggernaut Rom. Before I rooted and now no changes in the fact when I install any sim I get no message of invalid or a place to enter unlock code.I know SM is suppose to work without unlock. But I havent been able to get SM to work at all. Do i need to flash another rom, because it seems that Im locked into Tmobile so far. Any help much appreciated!
Click to expand...
Click to collapse
Which .apn are you using? are calls working with the exception of data and mms?
Sent from my SGH-T989 using XDA App
I have not changed the .APN. Nothing is working , there is a circle with a line through it in top status bar. Just get " mobile network not available" Im lost at how others have used Simple Mobile sims with nothing extra but to configure the mms/internet.
simple mobile is tmobile, you can use a tmo phone without unlocking with a simple mobile sim, i still have my simple mobile sim from when i used it on my vibrant, and i was able to make a call from my sgs2 without unlocking, so i might be wrong but you should try with an at&t sim, the apn settings for simple are on their site also.
Weird, I'm experiencing the same issue.
I believe the Simple Mobile SIM card is fine, because it works in /other/ (non-smart) phones such as my T-Mobile branded Motorola V195 and Nokia 6030 - I can place and receive calls and text messages.
But the Samsung Galaxy S II T989 is always stuck on "Searching" on the lock screen, and Settings: Wireless and network: Mobile networks: Network operators: Search now: only turns up "T-Mobile" and "AT&T" under Available Networks, both of which say "Your SIM card does not allow a connection to this network" when I tap on them.
Oh yes, and I did program the Access Point Names (APNs) as per Simple Mobile's instructions, twice.
Both with the stock ROM, and with Juggernaut-v4.1 (as it so happens). Baseband version T989UVKL1.
I'll try and find someone with a working T-Mobile SIM card, test that in the phone tomorrow, and report back.
Sim is prolly bad I had same issue when I first put my sim in try another simple sim, maybe sticking it in non smart phones Burns something cus that's exactly how it went down for me:/ when i was using an older phone as a temp, then bought the sg2 and didn't work try using ur sim on another smart phone if it doesn't read it it's toast like mine was
Sent from my SGH-T989 using xda premium
I tested a coworker's T-Mobile SIM card in the phone and had exactly the same problems (no network/unable to find network - just AT&T and T-Mobile), whereas my coworker was able to use my SIMPLE Mobile SIM card in their phone successfully.
I flashed my baseband from to T989UVKID *, and the behavior is the same - still saying that it's not registered, and still only shows AT&T and T-Mobile when I search for networks. Co-worker's SIM card still doesn't allow me to connect to T-Mobile, either.
I'm starting to think the IMEI for this phone might have been reported stolen, and maybe it's being blocked externally (I did buy it from a pawn shop eBay seller - albeit one with good feedback). Hopefully T-Mobile can tell me if I call them up.
*-Well, I loaded the zipfile from topic "1426001 - [RADIOS] CWM Flashable Modems" onto my sdcard and applied update from zip, and Settings: About phone says "Baseband version T989UVKID" now.
http://forum.xda-developers.com/showthread.php?t=1426001&page=18
probably blacklisted , sounds like this phone is blacklisted a lot people buying and selling before its even payed off , or getting a replacement and then selling
Sent from my SGH-T989 using xda premium
Ya sounds like that. You know what my brother had a vibrant brand new from someone on cragslist and then several months later his gave same problem. He was on Simple Mobile. He called t Mobile and believe it or not said they don't black list phones and say it is not possible for them to do so. It was different reps too that said the same thing. I don't know. Maybe true?
Sent from my SGH-T989 using XDA App
IMEI blacklisted
I just borrowed the SIM card from a coworker's AT&T phone. I had to unlock my Galaxy, but I'd purchased an unlock code a few days ago before I realized that the problem wasn't a SIM lock.
Sure enough, the phone works fine on AT&T's network. 2187 kbps down, 436 kbps up, 105ms ping (in my area).
It's definitely the carrier blocking my phone. Now to see if I can return it. Hey, it will work on the AT&T network now, or maybe the seller can catch the person that sold them the phone.
P.S. Judging by the threads on support.t-mobile.com, Support L1 doesn't have access to or know about the IMEI blocks, but L2 does. Case in point:
support.t-mobile.com/thread/15348
Incidentally, I don't feel that it's T-Mobile's fault that I got a blacklisted phone, although I would like it if they *published* their IMEI blacklists. In Australia, you can punch in an IMEI code and see if it's blacklisted.
amta.org.au/pages/amta/Check.the.Status.of.your.Handset

[FIXED] No GSM? I thought I unlocked it!

Hey everybody, I´ve been having more problems than anticipated with my Dinc2. Basically what happened was this:
I had a phone that I bought new, unlocked, and used on the GSM network this past summer while abroad. (Verizon). However, I had dropped it to the point where the audio jack ceased to work and thus had to take it back in November for a replacement under the Best Buy warranty.
Now, in November I jailbroke the phone again, and I still have the code that I used to do it. Or at least I think I did it successfully, because I never checked with a real SIM card. After (possibly) getting rid of the SIM lock, I rooted, got S-off and flashed the radio following the instructions here, which had been working great for the past few months in the US (CDMA). Now I´m running MIUI on Android 2.3.5 and the baseband version is 20.27W.30.0811U_1.09.01.0622 and a kernel of 2.6.35.14.
Now I´m abroad again, working in Spain for the next several months. My first issue occured when I arrived and tried to use an SD card. Guess what! It would appear there´s a sim card lock. It doesn´t recognize sim cards when they are inserted, nor does the unlock code I got back in November unlock the phone.
It gets better.
The phone doesn´t show an IMEI number, nor is there an IMEI number on the sticker on the back of the phone-just a Serial Number and an MEID. Also, since it was a replacement phone under warranty it was probably a refurb, and I don´t have any other packaging on which the IMEI could appear. As a result I have no friggin´ clue how to get the lock off and allow me to use the 3g network as before.
Should I try flashing the stock rom and radio, or just the stock RUU, and see if I can get the unlock code to work?
Or is it hopeless and in that case should I give up and buy a ****ty candy bar phone?
Thanks in advance!
authorama said:
Hey everybody, I´ve been having more problems than anticipated with my Dinc2. Basically what happened was this:
I had a phone that I bought new, unlocked, and used on the GSM network this past summer while abroad. (Verizon). However, I had dropped it to the point where the audio jack ceased to work and thus had to take it back in November for a replacement under the Best Buy warranty.
Now, in November I jailbroke the phone again, and I still have the code that I used to do it. Or at least I think I did it successfully, because I never checked with a real SIM card. After (possibly) getting rid of the SIM lock, I rooted, got S-off and flashed the radio following the instructions here, which had been working great for the past few months in the US (CDMA). Now I´m running MIUI on Android 2.3.5 and the baseband version is 20.27W.30.0811U_1.09.01.0622 and a kernel of 2.6.35.14.
Now I´m abroad again, working in Spain for the next several months. My first issue occured when I arrived and tried to use an SD card. Guess what! It would appear there´s a sim card lock. It doesn´t recognize sim cards when they are inserted, nor does the unlock code I got back in November unlock the phone.
It gets better.
The phone doesn´t show an IMEI number, nor is there an IMEI number on the sticker on the back of the phone-just a Serial Number and an MEID. Also, since it was a replacement phone under warranty it was probably a refurb, and I don´t have any other packaging on which the IMEI could appear. As a result I have no friggin´ clue how to get the lock off and allow me to use the 3g network as before.
Should I try flashing the stock rom and radio, or just the stock RUU, and see if I can get the unlock code to work?
Or is it hopeless and in that case should I give up and buy a ****ty candy bar phone?
Thanks in advance!
Click to expand...
Click to collapse
I had a similar scenario while I went to NZ. I thought I unlocked my phone prior to leaving, but didn't. I called verizon tech support and got a new code, plugged into the settings and then I was able to insert the prepaid SIM I bought. Here is the non 1-800 number for you to call (I had to get my brother-in-law to call them and get a non 1800 number because it is not listed on their website): 1-908-559-4899.
Try that and hopefully they can get you a new code to use. Good luck.
brymaster5000 said:
I had a similar scenario while I went to NZ. I thought I unlocked my phone prior to leaving, but didn't. I called verizon tech support and got a new code, plugged into the settings and then I was able to insert the prepaid SIM I bought. Here is the non 1-800 number for you to call (I had to get my brother-in-law to call them and get a non 1800 number because it is not listed on their website): 1-908-559-4899.
Try that and hopefully they can get you a new code to use. Good luck.
Click to expand...
Click to collapse
I just talked to Tech support today and got an unlock code... it´s not working however. I´ve put in a card, and it doesn´t show up. When I go to the SIM Lock under Options>Security, it says the code I enter is incorrect. Also, the phone shows no signal. Could it be that I just flashed a bad radio that supported CDMA and not GSM? Or is it something with MIUI? I was pretty certain that both the radio and the ROM were fine for GSM networks...
Re: [Q] No GSM? I thought I unlocked it!
authorama said:
I just talked to Tech support today and got an unlock code... it´s not working however. I´ve put in a card, and it doesn´t show up. When I go to the SIM Lock under Options>Security, it says the code I enter is incorrect. Also, the phone shows no signal. Could it be that I just flashed a bad radio that supported CDMA and not GSM? Or is it something with MIUI? I was pretty certain that both the radio and the ROM were fine for GSM networks...
Click to expand...
Click to collapse
Try bonestock. That's what I ran.
Sent from my ViperDinc
brymaster5000 said:
Try bonestock. That's what I ran.
Sent from my ViperDinc
Click to expand...
Click to collapse
I got that to work. Thank you! I later installed CM7 to try it out and surprisingly enough that didn´t work.
AOKP did for me-although they are both confirmed to be working with GSM? Anyway, I realized I never flashed gapps with the AOKP, so I tried to flash with the latest version (no coffee, late night) and ended up tweaking the install. Anyway, I re-flashed and I have to say that this setup (AOKP with Nova) is the slickest setup I´ve ever used! It´s been an intense couple days flashing ROM´s, reading about all the stuff that kept popping up, but then end result is so worth it!
Anyway, I´m off to go caress my telephone...oh yes.
authorama said:
I got that to work. Thank you! I later installed CM7 to try it out and surprisingly enough that didn´t work.
AOKP did for me-although they are both confirmed to be working with GSM? Anyway, I realized I never flashed gapps with the AOKP, so I tried to flash with the latest version (no coffee, late night) and ended up tweaking the install. Anyway, I re-flashed and I have to say that this setup (AOKP with Nova) is the slickest setup I´ve ever used! It´s been an intense couple days flashing ROM´s, reading about all the stuff that kept popping up, but then end result is so worth it!
Anyway, I´m off to go caress my telephone...oh yes.
Click to expand...
Click to collapse
Cool. Glad to help.
Sent from my ADR6350 using xda app-developers app

Unlocked GSM Galaxy Nexus - No signal al all

Hello,
A bit about my Nexus: Bought it online, it's the Domoco version, unlocked, rooted and been using just fine with many custom ROMs.
So yesterday morning, I was talking on the phone with a friend without any problem. After hanging up for a few hours, when I was about to call someone else, I realized my phone didn't have any signal at all. And it has been like that until now, about 48 hours.
It happened so suddenly without any warning. The phone has never been dropped and everything else working just fine.
So here's what I have tried:
- Restart the phone (multiple times)
- Batter pull (multiple times)
- Factory reset the phone (multiple times)
- Wipe cache and dalvik cache in CWM (multiple times)
- Downloaded SetCPU and set the minimum to 700Mhz (instead of 350Mhz)
- Reflash the ROM and tried with other Custom ROMs (I tried Xenon, Xylon, PA, and Carbon ROMs)
- Reflash the Radio and tried with other Radios too (I tried UILH1, XXLH1, SC04DOMLE3 and some others ...)
- I also went to Tmobile and request a new sim card - same problem.
- I borrowed a sim card from another Tmobile customer to try it on my phone - no signal - but the sim card works just fine on his phone.
I ran out of thing to try and I dont understand what happened ... anyone has an idea or something else for me to try ?
Anyone experience this before ?
Welcome too my hell. I have a playstore one now but my first Gnex was an international one and it has this same issue. Its a PCB problem a warranty would fix. I'm near Chicago and a few people have told me there is an electrical engineer downtown that fixes stuff like this. I don't have a price but I think something like this is your only option. Mine sadly is still a battery charger:thumbdown:
Sent from my Galaxy Nexus using xda premium
I know it sounds stupid, but have you tried toggling airplane mode? I run into the occasional loss of signal when im at work [fair to weak signal in the big metal box], and a reboot is the only thing that fixes it for me. Mines a play store model.
bodh said:
I know it sounds stupid, but have you tried toggling airplane mode? I run into the occasional loss of signal when im at work [fair to weak signal in the big metal box], and a reboot is the only thing that fixes it for me. Mines a play store model.
Click to expand...
Click to collapse
Ah yes, I actually did try that too but forgot to mention. I tried toggle airplane mode on and off, also the 2G only mode on and off. But it didn't help with anything.
Thanks for the suggestion.
JediDru said:
Welcome too my hell. I have a playstore one now but my first Gnex was an international one and it has this same issue. Its a PCB problem a warranty would fix. I'm near Chicago and a few people have told me there is an electrical engineer downtown that fixes stuff like this. I don't have a price but I think something like this is your only option. Mine sadly is still a battery charger:thumbdown:
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
So I guess I have to look for an electrician then, cause I have this phone just a little bit over a year so warranty is a no go for me.
Thanks for the idea.
PS: anyone else has more option for me ? I just wondered if I have bricked my phone ... cause I flashed lots of diff. ROMs to try out but never gotten a bricked phone before, could this be a bricked phone ?
Bricked refers to a phone that does what a brick does: nothing. It doesn't boot, it does not light or attempt to boot, it does nothing. This is a signal issue..I have no prior experience with docomo, but this thread came up on search: http://forum.xda-developers.com/showthread.php?t=1574018, maybe it'd be helpful. Have you converted it to yakju or takju and tried a google factory image?
And this: http://forum.xda-developers.com/showthread.php?t=1554150. If it is a circuit board, it kinda looks like s.o.l., and im sad to say that to you.
I wanted to let you know that I experienced the same issue. I bought the unlocked Docomo Galaxy Nexus, and had it working fine on T-Mobile for half a year, and then suddenly had no signal on Tuesday. Nothing I did - factory reset, battery in and out, sim card in and out - could fix it. Have you tried using different sim cards in your phone to see what works and what doesn't?
I figured out that my phone will accept AT&T, and actually does connect to T-Mobile while roaming (I used an international sim card). But, my phone will say "Cannot find mobile network" when any T-Mobile sim card is inserted.
chowabbajack said:
I wanted to let you know that I experienced the same issue. I bought the unlocked Docomo Galaxy Nexus, and had it working fine on T-Mobile for half a year, and then suddenly had no signal on Tuesday. Nothing I did - factory reset, battery in and out, sim card in and out - could fix it. Have you tried using different sim cards in your phone to see what works and what doesn't?
I figured out that my phone will accept AT&T, and actually does connect to T-Mobile while roaming (I used an international sim card). But, my phone will say "Cannot find mobile network" when any T-Mobile sim card is inserted.
Click to expand...
Click to collapse
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.
wocman said:
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.
Click to expand...
Click to collapse
I know others who bought their GNEX through the Play Store and those work just fine with T-mobile. I tried their sim cards in my phone and it doesn't work. I don't think T-mobile is intentionally blocking the docomo phones, because I'm getting T-mobile through roaming, when I use an international sim. My guess is they're doing something to the cell network that just somehow leaves our configuration out. Hopefully it's temporary, but who knows.
Worse case, I'll just purchase a Nexus 4, because I love 4G data for just $30/month with T-mobile. Anyone else got suggestions?
wocman said:
I also have the same problem with the docomo phone. ATT Sim card works. Tried other's T-mobile sim cards and it doesn't work. I wonder if somehow the IMEI has been blocked by T-mobile.
Click to expand...
Click to collapse
Alright, update on this and there' good news. I called Tmobile and they said my IMEI is actually Blocked. The reason, according to him, is that Tmobile usually sweep the network to clean up all "un-supported" devices, so my device is apparently one of them and therefore got blocked about 2 days ago.
So he said for this, he needs to escalate it to business support and they surely can unblock it for me, but I have to wait until Monday since they don't work on weekend. But well, that's surely a good news. phewwwwwwwwwwwwww !!!
So to all of you guys who are in the same situation, make sure you call Tmobile first before flashing crazy like I did LOL.
Thanks for all the help.
I'd love to know if you are able to get this unblocked and working as I have the same problem as of Tuesday. I was traveling and went into a TMO store, and they told me it was NOT IMEI blocked. In fact they looked at the IMEI and read the page and said 'it was not eligible for blocking'.
I called TMO to see if my phone is IMEI blocked, and through three levels of support the universal answer was no. I'm now fully confused because if it's a hardware issue, why did several people all have the same problem all on Tuesday. For those others who are having issues, can you see the TMO network but not connect to it? That's what I have, I can see TMO and AT&T but haven't been able to connect to either one since Tuesday.
simple23227 said:
Alright, update on this and there' good news. I called Tmobile and they said my IMEI is actually Blocked. The reason, according to him, is that Tmobile usually sweep the network to clean up all "un-supported" devices, so my device is apparently one of them and therefore got blocked about 2 days ago.
So he said for this, he needs to escalate it to business support and they surely can unblock it for me, but I have to wait until Monday since they don't work on weekend. But well, that's surely a good news. phewwwwwwwwwwwwww !!!
So to all of you guys who are in the same situation, make sure you call Tmobile first before flashing crazy like I did LOL.
Thanks for all the help.
Click to expand...
Click to collapse
I'll call up T-Mobile tomorrow and ask if they IMEI blocked my device. I had them reset my signal and give me a new SIM card, but didn't realize it could have been IMEI blocked. I'll give them a call on Monday and let you know what the result is. Maybe it won't be too late to cancel my order on that Nexus 4...
I'm quite confused. I've been told last Thursday in a TMO store and with tech support that I didn't have an IMEI block, and the same with three reps tonight. I know the Sim Card is good, and so I'm being told its a hardware issue. However, several of the same phones had the same issue on the same day, so I can't buy it's a hardware issue. Has anyone with this issue flashed a new or different radio into the phone, either before or after the service loss? I have not, running it as it came out of the box.
I just got off the phone with T-Mobile Support, and they told me the device is not blocked. The reason is that T-Mobile cannot block or unblock devices that are not registered to T-Mobile. So I'm back to square one on this.
chowabbajack - When did you first have a problem, last Tuesday? Did you prior to that do any flashing or radio changes to the phone?
We're in the same spot....
alexwinsberg said:
chowabbajack - When did you first have a problem, last Tuesday? Did you prior to that do any flashing or radio changes to the phone?
We're in the same spot....
Click to expand...
Click to collapse
I did not do any kind of flashing or radio changes prior to Tuesday, when I lost signal.
chowabbajack said:
I did not do any kind of flashing or radio changes prior to Tuesday, when I lost signal.
Click to expand...
Click to collapse
That makes me think its something to do with the radio software, because I am the same the problem overall doesn't seem as large as the number of phones I perceive were bought on the Docomo deal.
Ive been using the docomo version of the nexus as well on tmobile for almost a year and it was since last tuesday when it no longer recieved any singal. with some digging around and too many phone calls, I found that the imei number on the phone is not the same as the one under the battery. i have the generic 004999010640000 imei right now and it not sure how i got it. as i bought it unlocked.
what i have tried:
reboot, battery plug, reinsert sim, factory reset, root and flash, got a new sim card, relocked, unlocked
sim card works on other phones.
also i have called tmobile and samsung endlessly and this is what i got:
tmobile cannot unblock the imei since it is not from them.
samsung is redirecting me to their japan branch.
docomo i cannot reach.
my phone before last tuesday:
unrooted stock 4.2.1
been testing different things to see if there is any way to restore the imei
also using root explorer, i cannot find my efs folder....
I've got the same problem since last Tuesday with my GNex and T-Mobile.
Mine is not from docomo though, but the French phone provider SFR, unlocked through FDocomo apk.
Rooted phone, running 4.2.1., no changes whatsoever in the past month and it worked fine until Tuesday, so I don't think I'm responsible for having no signal.
Honestly, I am relieved to see we are quite a few to have this problem, and also very pissed at T-Mobile for causing all this. What should be the next step then? Is there any chances they fix the issue quickly? If not, I might just go to the competition. I've tried AT&T sim cards and they work fine.
vanessax17 said:
Ive been using the docomo version of the nexus as well on tmobile for almost a year and it was since last tuesday when it no longer recieved any singal. with some digging around and too many phone calls, I found that the imei number on the phone is not the same as the one under the battery. i have the generic 004999010640000 imei right now and it not sure how i got it. as i bought it unlocked.
what i have tried:
reboot, battery plug, reinsert sim, factory reset, root and flash, got a new sim card, relocked, unlocked
sim card works on other phones.
also i have called tmobile and samsung endlessly and this is what i got:
tmobile cannot unblock the imei since it is not from them.
samsung is redirecting me to their japan branch.
docomo i cannot reach.
my phone before last tuesday:
unrooted stock 4.2.1
been testing different things to see if there is any way to restore the imei
also using root explorer, i cannot find my efs folder....
Click to expand...
Click to collapse
I have the exact same generic IMEI number as you, which does not match the number under the battery. I'm not liking the news that you did flash and still no go. I'm a novice at this stuff so please keep us posted.

[Q] sgh-t999l not recognizing sim

so, i recently bought this phone new in box. opened the box, inserted my sim and it does not recognize it. now i should mention that i use walmart family mobile as my carrier. could that be my problem? i'm told that t-mobile phones work since there a branch of t-mobile but so far no luck. im going from a captivate to this phone, so the sim was bigger. i used the template deal and cut it down to the micro sim size which i thought could be my problem but the sim happily works in the captivate. any help with this would be greatly appreciated. i will answer all questions to my greatest abilities and i apologize in advance if im the 18th person to ask this today like other questions
joehein said:
so, i recently bought this phone new in box. opened the box, inserted my sim and it does not recognize it. now i should mention that i use walmart family mobile as my carrier. could that be my problem? i'm told that t-mobile phones work since there a branch of t-mobile but so far no luck. im going from a captivate to this phone, so the sim was bigger. i used the template deal and cut it down to the micro sim size which i thought could be my problem but the sim happily works in the captivate. any help with this would be greatly appreciated. i will answer all questions to my greatest abilities and i apologize in advance if im the 18th person to ask this today like other questions
Click to expand...
Click to collapse
You can not swap SIM cards from one provider to another unless your phone is unlocked..
You need to purchase a T-Mobile SIM card kit...
Zaphodspeaks said:
You can not swap SIM cards from one provider to another unless your phone is unlocked..
You need to purchase a T-Mobile SIM card kit...
Click to expand...
Click to collapse
but this works with other t-mobile phones and i know this because i have done it without an unlock, but those were older older phones like the s1 and s2. does the t999l specifically pick a fight? maybe a quirk of 4.1.2?
joehein said:
but this works with other t-mobile phones and i know this because i have done it without an unlock, but those were older older phones like the s1 and s2. does the t999l specifically pick a fight? maybe a quirk of 4.1.2?
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Click to collapse
I believe in order for this to work on this device, you would need to unlock it..
I'm no expert, but this is my personal experience..
In order for me to test this, I would have to have both devices and YOUR sim card..
Zaphodspeaks said:
I believe in order for this to work on this device, you would need to unlock it..
I'm no expert, but this is my personal experience..
In order for me to test this, I would have to have both devices and YOUR sim card..
Click to expand...
Click to collapse
well a man can hope right? and from my extensive research i have found that because of the fancy L the only way to unlock this is via a dude on ebay, or a code directly from t-mobile. i doubt t-mobile would do this for a non-contract phone though. it certainly does suck to suck.
Esn?
~SanaDrate + LTE
"Doesn't recognize it" please explain what exactly what is happening. If it is still asking for a SIM to be inserted, you will need a new SIM, but if it is asking for a Unlock PIN Code or similar, then you will need to unlock the phone to use with a non-TMo provider. Personally, I think that since you cut the SIM and it is not lining up. You should get a new (factory made, not cut) Micro-SIM. Also, I believe that it should work with Simple, Straight Talk and Walmart Family on any TMo phone.

Unlocking Samsung Galaxy S4 SGH-I337

Okay, so I found a found at a gas station a couple weeks ago and I wanna get straight talk on it. The package I got, however, didn't have a SIM card that would work with the phone... The ATT ones were too small for the sim slot and it's an ATT locked phone, so the t mobile ones that came with it won't work...
Now, on with the part where I try to unlock the phone. I was originally going to root it but I don't have any experience and heard that it could kill the phone and I just need it unlocked right now. I've looked all around the net and here's what I found.
*#0011# - can't use menu back
*#197328640# - Takes me to the debug menu but the phone control option (in some walkthroughs it's 6, in others it's 8) simply isn't there.
Any number I've entered to get me into the system control menu won't let me go back from the menu it enters me in. I'm not paying 30$ to unlock it via ebay or one of these unlock code sites considering there's got to be a way to unlock it using the system controls. Can anyone help me? I've come close a couple of times on random forums, I see people asking the question however the conversation then gets side tract and moves on to something else.
So, I tried calling att and getting them to give me an unlock code and they said because I don't have a number. I've officially reached a dead end on unlocking the phone. I'm thinking instead I'll root the phone so I can use it (I think that works). But I know that it can be dangerous and come with side effects, so what I'm wondering is if anyone can give me any information on unlocking or rooting.
I'm not sure if I included what I'm trying to do in my original post.
I found a Samsung Galaxy S4 a while ago, I kept it around for a bit and no one came to claim it after two weeks so I took it home and used it on my wireless net and downloaded some games and movies for my daughter. Now, ATT is trying to screw me over on my iphone so I'm cancelling that contract and trying to get straight talk on this this phone. I bought the pack, put in the SIM card that fit and the phone read, and it came up that I need to unlock it to use this one because it was a t-mobile sim card (The att ones in the pack didn't fit).
All I want to do is use this phone with straight talk. The super small SIM cards won't fit in it and the larger Tmobile sim cards are Tmobile on an ATT galaxy and won't work.
Please help.
Try this method, worked for me to unlock. I used method 2. Some are reporting that this doesn't work for them. You will lose sound and WiFi on MDL modem but will fix when you flash back. http://forum.xda-developers.com/showthread.php?t=2597973

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