[Q] Why did I lose my IMEI - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hey everyone,
So I recently ran into a weird situation with my Rogers Samsung Galaxy S3, I went to the Rogers store to get a LTE sim card. After activating the sim card and putting it into my phone I realized that I was only getting Edge. I'd like to point out that I was getting up to H+ (or 4g) before I purchased this new sim card.
Anyways, I looked into this problem and I determined that I had lost my IMEI. So using QPST and the QCN generator, I was able to get my data connection back. However, I did noticed one slight change. Before, my phone used to show 4g and now it says H+. To my understanding, these two are the same thing. Please correct me if I'm wrong. As for LTE, I believe it shows up as 4g on my phone.
My first question, is there any way to get my phone to show 4g for H+ and LTE for 4g? --> which to my understanding is the normal set up for the GS3.
My other concern is that I would like to know what caused my IMEI to be lost?????? What are some possibilities?
I am rooted and I was using Drew Garen's Jellybean M7 rom. Just before I purchased the new sim card, I flashed back to Rogers stock rom. That is all I did! I've done this many times and I've never had a problem with my IMEI.
Thanks everyone for your time. If you can help out in any way I'd greatly appreciate it.

For all I know, flashing ROMs randomly cause you to lose your imei. No one really knows why (correct me if you can). There's a thread sticky somewhere that links to a tool to restore it.. Best of luck

one way to lose your imei is flashing att modem on Canadian i747m but
flashing back the right modem should give you back your imei if that's was what cause you to lose it.

Is there any way to get my phone to show 4g for H+ and LTE for 4g? --> which to my understanding is the normal set up for the GS3.

On stock Rogers gs3 you should see LTE when connected to it. Try doing a factory reset afrer flashing the stock rom.

I had the same experience.I had no clue how it happened cz i didnot flash any custom rom apart from jellybean bell leaked rom(my s3 is Bell).Anyhow you will have to manually restore imei if its not already backed up.There is a tool for it and to get Hsdpa working as well.
Sent from my SGH-I747M using xda premium

shalika1987 said:
I had the same experience.I had no clue how it happened cz i didnot flash any custom rom apart from jellybean bell leaked rom(my s3 is Bell).Anyhow you will have to manually restore imei if its not already backed up.There is a tool for it and to get Hsdpa working as well.
Sent from my SGH-I747M using xda premium
Click to expand...
Click to collapse
Is it possible to restore the imei if you did not back up already?

Yes its possible. You need to reinject your IMEI (found behind your battery). You can do this using QPST and the QCN generator. Theres a list of instructions on this thread
http://forum.xda-developers.com/showthread.php?t=1801997
Goodluck

Related

Mobilicity/wind s3 network registration

Hello everyone I have a s3 and I'm using it it with mobilicity provider. Every time I turn the phone off it takes like 5 mins to register to network? Does anyone know why. My friend note 2 register right away. Does s3 have bad radio?
Sent from my SGH-T999 using xda premium
Anyone??
Sent from my SGH-T999 using xda premium
I don't think the radio has anything to do with it. What kind of connection are you getting when it registers?
My unicorn died, back on the pony.
Let us know not just what it says in the status bar when it finally registers, but also, after booting up, go to Settings > About Device > Status and post what it says for Mobile Network Type, both before and after it connects.
Also, please post info about what firmware you are running. Are you rooted? Custom Rom? Have you flashed any kernels or modems? Did you try wiping Dalvik and Cache from recovery? Try factory reset?
I would normally agree with Vopezy about the modem, but in your case, I have to wonder about it since you are on a carrier that usually has the T999V model phone. If you want to give it a shot, you could try to flash one of the Mobilicity modems.
First go to Settings > About Device and write down your current baseband, in case you need to flash back to it.
You can find the T999V modems at the bottom of the OP in this thread: http://forum.xda-developers.com/showthread.php?t=1880987
Just to be clear, I dont usually recommend flashing a different models modem. Usually this is because in most cases it simply wont even establish a connection. (most times its a T999V user wanting to flash a T999 modem, but staying on their own network) As best as I have been able to tell, the T999 and T999V are virtually identical. I do know the modem partitions are the same, which is why you can flash the modem, it won't brick your phone, but it just may not work, forcing you to flash back to the original.
Because they are practically the same phone, and from what Ive read, T999 modems don't work on canadian networks, it seems logical that the T999 phone would have problems....unless it had a T999V modem. I hope that makes sense, I want to try to help you understand what you are doing and why.
If that does not work, or you want to try something else first, you could try swapping SIM cards with someone on the same network as you. If their SIM works fine in your GS3, or your SIM works in their phone, then its most likely either a SIM or account issue. If their SIM does not work on your phone, but yours does work on theirs, then its either SW or HW and not an account issue.
Something else you can try is flashing some of the other T999 modems, and/or try flashing the stock firmware via Odin. This would only help if there was something corrupted in the system partition that was causing your problem. Possible, but not probable.
As a last resort, and this would require a bit more work to pull off, you could try to flash the Mobilicity Firmware using Odin. (Or if I have the time I can try to build a quick rom out of the firmware so it can be flashed in recovery...this would be safer)
Either way, if it comes to that, please do not try to Odin flash the fw on your own. It will almost certainly fail. I will probably need to modify something to make it work.
The more I think about it, the more I am leaning towards trying the Mobilicity modem. Let me know if you have any questions or concerns about doing any of this.
Sorry its so much at once. Ill probably be logging off soon, so wanted to leave you with more than one thing to try until Im back on.
Good Luck!!!
Thanks a lot it worked so it's a sim card issue cause mobilicity have new Micro sim cards and I had the older one and I was activating a customer today and tried her sim on my phone and it registered right away. Thanks
Sent from my SGH-T999 using xda premium

No sim after putting a new rom? Still the same in stock?

Hey all,
I tried looking at similar threads but I haven't really come up with anything :\
I was installing a new rom onto my sgs3 (Wind Mobile) when I realized it was for T-Mobile after I booted it up. Thinking that it didn't matter, I continued only to notice that there wasn't any service available. So I switched back to the stock via a recovery I made and I still don't have any service what so ever. Could the rom have fried the sim card? Maybe I did something wrong?
Try looking at the wind users unite thread.
http://forum.xda-developers.com/showthread.php?t=1777749
You should be fine, but may have to flash a wind radio if you accidentally flashed a Rom with a T-Mobile one.
My understanding is that wind users can use T-Mobile roms, but not the radios
Sent from my SGH-T999 using xda premium

[Q] SOS! Internet super slow! (Should I change modems?)

Im sorry to be asking this (I've searched the forums and google and can't find anything conclusive)
Background:
I have a service contract with AT&T and I'm currently a customer of them. I used to have the Galaxy S4 (i747), and the usb charging port stopped working. I took it into a repair shop where they messed the whole phone up and had to give me back the phone with a whole new board in it, the only problem with the new board it's a board for i747M. I was having issues with the phone being stuck on edge - so I proceeded to unlock it again (I do not trust the work they did, and even thou I had network with my AT&T SIM Card, I had to make sure it was unlocked), I also restored the old IMEI - and after all this I was able to get out of edge.
The problem:
Even thou the phone reports 4G LTE, the internet is super slow!!
I made a speed test and the speeds are at 256 download // 512 upload - WEIRD!
The new board is for i747M - I already restored the IMEI to the one the original board had, I checked my APN and everything is in order.
(Did I missed anything? other than calling the repair shop and scream at them!)
I was wondering if I flash an i747 modem (MJB to be exact, since I'm on 4.3 with MK5), will the speeds improve, or will I brick the phone?
Any help greatly appreciated, I'm desperate!
ugartina said:
Im sorry to be asking this (I've searched the forums and google and can't find anything conclusive)
Background:
I have a service contract with AT&T and I'm currently a customer of them. I used to have the Galaxy S4 (i747), and the usb charging port stopped working. I took it into a repair shop where they messed the whole phone up and had to give me back the phone with a whole new board in it, the only problem with the new board it's a board for i747M. I was having issues with the phone being stuck on edge - so I proceeded to unlock it again (I do not trust the work they did, and even thou I had network with my AT&T SIM Card, I had to make sure it was unlocked), I also restored the old IMEI - and after all this I was able to get out of edge.
The problem:
Even thou the phone reports 4G LTE, the internet is super slow!!
I made a speed test and the speeds are at 256 download // 512 upload - WEIRD!
The new board is for i747M - I already restored the IMEI to the one the original board had, I checked my APN and everything is in order.
(Did I missed anything? other than calling the repair shop and scream at them!)
I was wondering if I flash an i747 modem (MJB to be exact, since I'm on 4.3 with MK5), will the speeds improve, or will I brick the phone?
Any help greatly appreciated, I'm desperate!
Click to expand...
Click to collapse
You are unlikely to brick the phone by flashing the modem alone (although I affirm no guarantees to this effect) unless you try to flash the wrong bootloader and/or ROM. You did not, however, say which ROM your phone is currently on. Is it currently on the I747MVLUEMK5 or I747UCUEMJB? There is always a problem with incompatibility between your modem and ROM respectively which is what you'll have if you flash the MJB model whilst on the MK5 ROM plus, of course, subsequent firmware upgrades may be compromised. Are you sure also it's not an hardware issue you are having and the "repair shop" didn't muck up something on the mother board or install a dud? At this stage, however, I don't see how you have much to lose in trying a different modem. If it doesn't help, you can always go back to the previous one. All discussions about warranty are probably off the table already.
Larry2999 said:
You are unlikely to brick the phone by flashing the modem alone (although I affirm no guarantees to this effect) unless you try to flash the wrong bootloader and/or ROM. You did not, however, say which ROM your phone is currently on. Is it currently on the I747MVLUEMK5 or I747UCUEMJB? There is always a problem with incompatibility between your modem and ROM respectively which is what you'll have if you flash the MJB model whilst on the MK5 ROM plus, of course, subsequent firmware upgrades may be compromised. Are you sure also it's not an hardware issue you are having and the "repair shop" didn't muck up something on the mother board or install a dud? At this stage, however, I don't see how you have much to lose in trying a different modem. If it doesn't help, you can always go back to the previous one. All discussions about warranty are probably off the table already.
Click to expand...
Click to collapse
I'm using S3Rx for i747M (MK5) -- and latest modem for at&t is MJB, but my board it's not AT&T anymore so Im guessing Im not gonna be able to flash the modem
it's too too slow I downloaded the Speedtest.net app and it's reporting: 0.14 Mbps download and 0.10 Mbps upload:crying:

[Q] HELP! My fully flashed Cricket LG G2 is back on Sprint after restore!

My WIFI toggle wasn't working, so rather than troubleshoot the issue, I simply went back to stock, well, in that process my MIN and MDN got reset to Sprint! I was already on Cricket and the ESN is in their network. Any help or suggestions? I can't find a G2 flash guide ANYWHERE, and this was flashed before by a friend.
How did you get it back to Sprint? I'm having the exact opposite problem. I was on cricket and I'm trying to get back to Sprint. They said it couldn't be done.
jackdaburby said:
How did you get it back to Sprint? I'm having the exact opposite problem. I was on cricket and I'm trying to get back to Sprint. They said it couldn't be done.
Click to expand...
Click to collapse
I accepted an OTA update. If you're already up to date, I dunno. Whoever flashed your phone should have made a backup of all the info, if not, I'm not really sure how else, as I don't believe a TOT restore will restore NAM and all those other settings. My G2 is on the new cricket now, the GSM Cricket, so I just flashed a GSM ROM to it and the SIM card slot works now.

[Q] Sprint SGS3 flashed to PagePlus = Sprint or Verizon roms?

I have recently acquired a Sprint SGS3 SPH-L710. It was still original stock at 4.4.2, never rooted. i flashed the n2j stock rom through odin, and then I had it flashed from Sprint to PagePlus and it is working okay (still need to get 3g going) Then used cm-autoroot and installed twrp (debating on installing philz). Now the phone is ready for some rom action.
My question is since this phone is a d2spr, but flashed to PagePlus (Verizon), would it be safe or better to install a d2vzn rom vs d2spr rom?
From my research, there are settings in the roms that are molded to a specific carrier. If I am on Verizon, I do not want to install and have Sprint related settings (buildprop?) and apps, etc. Then flashing a Sprint SGS3 to Pageplus vs a Verizon SGS3, Sprint must be set to NV only, and other posts and forums (on xda and howards), I have read said this nv setting could be changed when flashing a rom, which would break the PagePlus flash. But if I install a d2vzw rom, everything else would be molded to Verizon, which is great since I am using a Verizon network. I suppose it depends on how much molding is being done and what exactly. Then of course, I do not want to brick the device flashing the wrong version. If the roms were only listed as d2lte, I wouldnt mind as much, but I have noticed some roms do have a Sprint version and a Verizon version, but I can not locate the details to compare the differences.
Answer from another post:
bthorne79 said:
I would still stick with what your phone is if d2spr flash the d2spr here is a thread that looks like some stuff you will want to try prl apns mms
http://forums.androidcentral.com/sp...te-3-page-plus-selectel-flashing-real-3g.html
Flashing a d2vzw build will not trick the phone to think it is a vzw phone just more chances of you ending up with a brick.
Sent from my SGH-T999 using XDA Free mobile app
Click to expand...
Click to collapse
I am now having a problem updating the APN in any 5.x rom, says not enough permissions. I tried a handful of APN apps on Google play, made them system apps, etc. it never saves or changes the apn settings. I can change and save APN in KK roms just fine though.
Did you try on WiFi it could be cause not picking up data connection
This is why I stopped flashing cdma phones to alternate carriers I had a epic4g on cricket pita if I didn't have the apn fix
Sent from my SGH-T999 using Tapatalk
bthorne79 said:
This is why I stopped flashing cdma phones to alternate carriers I had a epic4g on cricket pita if I didn't have the apn fix
Click to expand...
Click to collapse
I hear you and agree 100% with flashing to alternate carriers. I would not normally do this myself, but considering I got this cell for free a couple weeks ago, I figured I might as well deal with the hassle and make the best of it.
The only problem is that I still haven't found a 100% fix. I been flashing 4.4.x roms and 5.1.1 roms trying various APN settings, apps, changes, tips, etc. Nothing seems to stick or crash when attempting to change it. Trust me I been digging all over Google, XDA, and other various droid forums.
My carrier is PagePlus/vzw, and I can not find a PagePlus APN flashable file, hmm maybe I can come across a generic Vzw one, otherwise I know the settings to put in to create a new one though. This is why I was inquirying on flashing a Verizon S3 rom in the first place. Hopefully I can come across something soon.
When I get off work I'll try to help you out
Sent from my SGH-T999 using Tapatalk

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