Losing IMEI? - T-Mobile, Samsung Galaxy SIII

So I have been reading around and people have been saying to be careful flashing because you could wipe your imei...I've never heard of this coming from the t989...I was always under the impression the imei was permanently in your phone.
What exactly causes this, how can it be prevented, and how should I back up my imei?
Sent from my SGH-T999 using xda app-developers app

No one knows the how, what or why. As far as I know though its not much of an issue anymore, but can still hapoen.
Only thing you can do is prep for it.
http://forum.xda-developers.com/showthread.php?t=1804123
Sent from my SGH-T999 using xda app-developers app

This happened to me once after flashing several roms and I could not get 4G speeds, it took me a while to figure out it that my IMEI was blank and t mobile records showed I had a Sony Ericsson phone...so weird. I was able to restore the IMEI through the link above, get 4G back and I haven't lost it again.
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Related

Texting a pic while talking on the phone?

I just tried to send my buddy a pic while talking to him, and it wouldn't send until we hung up. Plain text went through just fine. Anyone else have this issue?
Sent from my LT28h using xda app-developers app
I think most phones tend to disable the use of your mobile internet during a call, my S3 does. It's not a fault. It's just that pictures need to be uploaded before they can be received.
Thanks, I would have sworn I have done it before.
Sent from my LT28h using xda app-developers app
With AT&T you should still be able to use your mobile data while on a call. Verizon and sprint did not allow it (CDMA limitation) LTE is supposed to fix that issue for verizon and sprint though I believe. I'll see if I can try it on my ion sometime.
Works on At&t while in call. At&t has always allowed this.
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Hmmm. Doesn't work for me for some reason. I plan on reflashing again this weekend, maybe that will fix it, and some other minor issues I have.
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It could simply be a phone setting. on my i777 when I'm sending anything and then get or make a call I get a data error until I hang up I never bothered trying to work it out its not a problem I see often as i don't try to call and text
Sent from my SGH-I777 using xda premium

Really weird Data/Voice problem

My phone came up with two triangles with exclamation points on it in the notification bar. One said data access restricted and the other one said voice access restricted. My phone was fine and when I got out of the shower those notifications were there. So, after that my voice and data would not work. I rebooted and voice came back, but data is gone. I cant connect to 4g/3g or anything. My IMEI is there still. I didnt flash anything. Anyone have a clue what might be causing this?
Bump
Sent from my SGH-T999 using xda app-developers app
Is your phone roaming maybe?
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DocHoliday77 said:
Is your phone roaming maybe?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I'm not sure. I know under data it just said disconnected. It didn't say roaming. Btw I'm talking about using the phone info app to see status. My voice showed bars, but when I tried to make a call it said not registered on network. I rebooted and moved my phone to a good reception spot and data is working. So strange. Does this phone say when it roams?
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It should.
Also, go to settings, more settings, mobile networks and check data roaming. If it happens again it should definitely tell you.
Make sure your plan covers nationwide roaming so you dont accidentally get charged.
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Not connecting to HSPA

Has anyone else had an issue with the Gs3 not connecting to the hspa. I have called T mobile and had data reset but the issue keeps happening. I I have also flashed all of the available radios and same thing. Any help would be greatly appreciated I am currently running CM10.1 but the issue occurred on paranoid as well.
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You still have an imei number? I lost mine crack flashing and had to restore it. Unfortunately I still have no data
Sent from my SGH-T999 using xda app-developers app
Crap no I don't have an Imei anymore guess will work on restoring when I get home
Sent from my SGH-T999 using xda app-developers app
http://forum.xda-developers.com/showthread.php?t=1808408
That thread has everything. Hopefully you can get it to work. I think I have too old a version of windows. Good luck
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Connecting my phone number back to the Sprint Network?

I can't connect to the the sprint network anymore. Everything else on my phone works. I can still surf the web (on WiFi), but I can't connect via 3G connection. I can't send text or make calls.
I've already called Sprint customer service, but they won't fix the problem because my phone is rooted. Is there anything that I can do to correct this issue?
Try updating your PRL and Profile
Sent from my LG-LS970 using xda app-developers app
outerpip said:
Try updating your PRL and Profile
Sent from my LG-LS970 using xda app-developers app
Click to expand...
Click to collapse
I've already tried that. I don't think that my phone is even connected to the network. Thanks for responding.
Does that error out? Keep trying it... Sometime mine will fail 15 times, and then ill try it 20 mins later, and it'll work after 1 try.
Also, did you make an efs backup?
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Efs got wiped
Sent from my LG-LS970 using xda premium
Thanks a lot guys. I found a thread referring to this EFS issue.

Can't send mms completely stock

I can't send any picture messages, I have a tmobile locked s3, not rooted or anything, please help. I've tried resetting the apn and everything, rebooting the phone etc.
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Help!
Sent from my SGH-T999 using xda app-developers app
Were you able to send mms before? Try sending while wifi is on and off.
It could be a network issue too. Does it say 4g in the status bar?
Call support to see if tgey have any problems on their end.
If not, you could backup all your data and factory reset. Other than that I'm not sure right off hand.
Sent from my SGH-T999L using xda premium
I have 4g, full bars, I tried with and without Wi-Fi, tried resetting the apn, even though I didn't mess with it in the first place. I don't get it.
Sent from my SGH-T999 using xda app-developers app
Are you sending it with stock MMS app? And are you sure you can properly connect to the internet?
Sent from my SGH-T999 using Tapatalk 4 Beta
Yes everything is stock, I have data because I'm using 4g to use Facebook, web, and currently this xda app.
Sent from my SGH-T999 using xda app-developers app
This is a total shot in the dark, so try if you want to.
Power off
Remove battery
Remove SIM
Replace SIM and battery
Reboot
I know it sounds strange. But stranger things have worked!
I still think calling support and finally factory resetting is your best option.
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I'll give that first part a shot, I really hope to avoid the second lol.
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Damn that didn't work
Sent from my SGH-T999 using xda app-developers app
Well, it was worth a shot. Sorry I don't have a better idea right now.
Maybe Odin flash the stock firmware?
Sent from my SGH-T999L using xda premium
Too bad I didn't see this sooner!
I have had that problem on 3 different occasions....
The simplest and always the only fix was:
Called my provider (T-Mobile)
Asked them to remove me from the network, and re insert me (my phone, that is)
Removed the battery, waited 3-5 min
re-installed the battery, and booted.
sent a mms picture to myself, and Got it!
no real work on my end. It seems the re-insertion to the network is the "Fix" that makes it work.
This why Doc said to call his provider. They should've done this if he called.
On the online chat with tmobile.. if course they want to make me try the hundred things I already tried..
Sent from my SGH-T999 using xda app-developers app
3 support transfers and they had to create a ticket for the guys upstairs, could take up to 3 days...Wtf.
Sent from my SGH-T999 using xda app-developers app
I'd call back and tell them exactly what you read from bobo above. Tell em you looked up the problem online and saw several places that said the same thing. Ask for a supervisor if they still won't try.
Sent from my SGH-T999L using xda premium
It's all fixed after they put in the order. I was at work while it got fixed.
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