[Q] Stuck on Edge, how to get back to 4G? - T-Mobile, Samsung Galaxy SIII

I flashed the new JB roms with the JI4 modem and couldn't connect to 4G. It would only connect to Edge and my download speed was super slow. Anyways, I wiped everything, reflashed several times with now progress. Now I've flashed it back to ICS LH2 hoping it would solve the problem but still doesn't work.
How do I fix this? Thanks in advance.

smtzy said:
I flashed the new JB roms with the JI4 modem and couldn't connect to 4G. It would only connect to Edge and my download speed was super slow. Anyways, I wiped everything, reflashed several times with now progress. Now I've flashed it back to ICS LH2 hoping it would solve the problem but still doesn't work.
How do I fix this? Thanks in advance.
Click to expand...
Click to collapse
I think your IMEI is corrupted. it happens, sometimes, when you flash non-touchwiz roms. You can try using the tool in this thread to recover your IMEI:
http://forum.xda-developers.com/showthread.php?t=1804123

ws2112 said:
I think your IMEI is corrupted. it happens, sometimes, when you flash non-touchwiz roms. You can try using the tool in this thread to recover your IMEI:
http://forum.xda-developers.com/showthread.php?t=1804123
Click to expand...
Click to collapse
if imei was corrupted wouldnt they get no service at all? also op did you try flashing the i7 modem? might help

Something similar happened to me.does it say 4g up to or edge?
I fixed this by using Odin and going back to full stock image that the phone came with. Let me know if you need a copy and I'll send you a link.
Sent from my SGH-T999 using Tapatalk 2

Thanks for the replies. You guys were right, it was the imei being lost. Got it resolved and now all is well.
Thanks again.

smtzy said:
Thanks for the replies. You guys were right, it was the imei being lost. Got it resolved and now all is well.
Thanks again.
Click to expand...
Click to collapse
Mind Telling Me How You Got Your 4G Data Back?
I Flashed Stock Rom Back Onto My S3 but I Am Only Running On Edge,

JerkLife said:
Mind Telling Me How You Got Your 4G Data Back?
I Flashed Stock Rom Back Onto My S3 but I Am Only Running On Edge,
Click to expand...
Click to collapse
He restored his imei. Might be your solution as well. Check if ur imei is 0.

Can someone help me get my 4G restored? I lost my imei number ( was set to 0), I was able to use nv_items_reader_writer along with the SGS3 nv gen to inject my correct imei number back into the phone.
I have checked under status and my imei is no longer 0 & displays the correct imei, but still no 4G - only edge.
I then made a full nv backup, then restored that backup, but still nothing.
any other ideas?

Ok, as I just said, you only need to post once. No need for double or triple posting. Its a good way to annoy a lot of folks who would otherwise be happy to help. Just fyi for the future!
Sent from my SGH-T999 using xda premium

Related

[SOLVED] Phone stuck on EDGE:2

went to bed last night with 4g speeds and everything...turned phone on this morning and now im stuck on EDGE:2 and i just cant get it back to regular hspa+....can anyone lend a hand?? been like this all day and its driving me crazy
EDIT/SOLVED: idk how but it fixed it right up...back in july when the whole IMEI scare was going on,i waited until Peoplearmy released a way to back up and restore the IMEI. All though i didnt have a IMEI problem i was dealing with a random data loss problem and the restore method said it could fix that too. yesterday i tried to restore 7 qnc backup files i previously made( made one for each new modem released and then used the generate qnc option just to be sure) and NONE OF THEM WORKED! 10 minutes ago, i realized that i never tried restoring the very very first qnc back up on my phone; i was busy restoring all the newer versions. so i restored that very first qnc back up i ever made, rebooted the phone and now i get HSPDA with my first speed test resulting in 18mbps! i think a tear came from my eye! this issue drove me crazy all day yesterday so to those who never made a qnc back up on your phone i suggest you DO IT NOW....never know if you wake up one day and just lose your 4g data, like me.
Sounds like you lost your IMEI. Check out this thread:
http://forum.xda-developers.com/showthread.php?p=29514187
Good luck man!
Sent from my SGH-T999 using xda app-developers app
sleevasteve said:
Sounds like you lost your IMEI. Check out this thread:
http://forum.xda-developers.com/showthread.php?p=29514187
Good luck man!
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
i have my IMEI...i know all about the IMEI issue and that dosent seem to be the problem im having...imei is in intact, i can text and call but I just cant get pas EDGE:2
i was stock on edge also but i did lose IMEI , if you have a NV backup maybe try to restore it or maybe try a different modem.
Does it stay this way when you go to a different area? You may want to call tmobile, they're doing a lot of work all over their network and it could be an issue with the tower.
Try putting it to wcdma preferred/only and see if that helps. Dialer code *#4636#
Sent from my SGH-T999 using xda app-developers app
s_snk3 said:
i was stock on edge also but i did lose IMEI , if you have a NV backup maybe try to restore it or maybe try a different modem.
Click to expand...
Click to collapse
have tired both methods and it still only stays on EDGE.....really wish I can resolve this issue without calling tmobile
DocHoliday77 said:
Does it stay this way when you go to a different area? You may want to call tmobile, they're doing a lot of work all over their network and it could be an issue with the tower.
Try putting it to wcdma preferred/only and see if that helps. Dialer code *#4636#
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
tried this also...still only stuck on EDGE:2....looks like ima have to call tmobile but i really dont want to restort to that,ugh
MMontanez347 said:
EDIT/SOLVED: idk how but it fixed it right up...back in july when the whole IMEI scare was going on,i waited until Peoplearmy released a way to back up and restore the IMEI. All though i didnt have a IMEI problem i was dealing with a random data loss problem and the restore method said it could fix that too. yesterday i tried to restore 7 qnc backup files i previously made( made one for each new modem released and then used the generate qnc option just to be sure) and NONE OF THEM WORKED! 10 minutes ago, i realized that i never tried restoring the very very first qnc back up on my phone; i was busy restoring all the newer versions. so i restored that very first qnc back up i ever made, rebooted the phone and now i get HSPDA with my first speed test resulting in 18mbps! i think a tear came from my eye! this issue drove me crazy all day yesterday so to those who never made a qnc back up on your phone i suggest you DO IT NOW....never know if you wake up one day and just lose your 4g data, like me.
Click to expand...
Click to collapse
YOU Sir are Awesome. Had the same issue and had tried a few of the peoplearmy qnc's as well. I was just about to re-ODIN my S3 as the next step when I came across this thread.... I had never tried my original qnc either, and when I did it worked like a champ! Thanks so much for pointing out something that should have been so obvious to me.! :good::good::good:
currently using the resources i found in this thread.
thanks for the OP. and thanks for the links.....im still working mine out....pretty sure i lost IMEI due to the ODEX app in the FrostyJB rom i just installed......
I am sure this will get worked out and ill post my experiance as well...
OP, did you just notice slower speeds or was your phone stuck on E? I rooted last night and notice slower speeds.
Sent from my SGH-T999 using Tapatalk 2
Can someone help me get my 4G restored? I lost my imei number ( was set to 0), I was able to use nv_items_reader_writer along with the SGS3 nv gen to inject my correct imei number back into the phone.
I have checked under status and my imei is no longer 0 & displays the correct imei, but still no 4G - only edge.
I then made a full nv backup, then restored that backup, but still nothing.
Lastly, I have even tried going into the hidden menus that take you into the phone setup/network setup & that did not work.
I am on the stock rooted rom (root66)
I did not have a original nv backup, hence why I am here lol
any other ideas?
ratcityrain said:
Can someone help me get my 4G restored? I lost my imei number ( was set to 0), I was able to use nv_items_reader_writer along with the SGS3 nv gen to inject my correct imei number back into the phone.
I have checked under status and my imei is no longer 0 & displays the correct imei, but still no 4G - only edge.
I then made a full nv backup, then restored that backup, but still nothing.
Lastly, I have even tried going into the hidden menus that take you into the phone setup/network setup & that did not work.
I am on the stock rooted rom (root66)
I did not have a original nv backup, hence why I am here lol
any other ideas?
Click to expand...
Click to collapse
You only need to post in one thread. As I said, stand by for a few and ill send you the solution. No worries, it should be a pretty easy fix.
Sent from my SGH-T999 using xda premium
MMontanez347 said:
went to bed last night with 4g speeds and everything...turned phone on this morning and now im stuck on EDGE:2 and i just cant get it back to regular hspa+....can anyone lend a hand?? been like this all day and its driving me crazy
EDIT/SOLVED: idk how but it fixed it right up...back in july when the whole IMEI scare was going on,i waited until Peoplearmy released a way to back up and restore the IMEI. All though i didnt have a IMEI problem i was dealing with a random data loss problem and the restore method said it could fix that too. yesterday i tried to restore 7 qnc backup files i previously made( made one for each new modem released and then used the generate qnc option just to be sure) and NONE OF THEM WORKED! 10 minutes ago, i realized that i never tried restoring the very very first qnc back up on my phone; i was busy restoring all the newer versions. so i restored that very first qnc back up i ever made, rebooted the phone and now i get HSPDA with my first speed test resulting in 18mbps! i think a tear came from my eye! this issue drove me crazy all day yesterday so to those who never made a qnc back up on your phone i suggest you DO IT NOW....never know if you wake up one day and just lose your 4g data, like me.
Click to expand...
Click to collapse
What did you do to fix this? My note 2 from T-Mobile is having the same problem.
murtillon said:
What did you do to fix this? My note 2 from T-Mobile is having the same problem.
Click to expand...
Click to collapse
Give me a couple of min. Then check your PM's.
Sent from my SGH-T999 using xda premium
I also need help
DocHoliday77 said:
Give me a couple of min. Then check your PM's.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
I have the same problem with my TMO Note 2. I need help.
data help
DocHoliday77 said:
Give me a couple of min. Then check your PM's.
I also have this problem on my LG Optimus g (e970) this is the attached version but I'm on T-Mobile. I have rooted and am running a debloated stock ROM. I have never lost my imei info but I had to make some APN files to get my data to work. I can get 4g to work by restarting the phone and then I have 4g until I lose it and then its locked on to edge. I don't believe I have ever seen the 3g symbol either.
Click to expand...
Click to collapse
sirk595 said:
DocHoliday77 said:
Give me a couple of min. Then check your PM's.
I also have this problem on my LG Optimus g (e970) this is the attached version but I'm on T-Mobile. I have rooted and am running a debloated stock ROM. I have never lost my imei info but I had to make some APN files to get my data to work. I can get 4g to work by restarting the phone and then I have 4g until I lose it and then its locked on to edge. I don't believe I have ever seen the 3g symbol either.
Click to expand...
Click to collapse
I seriously doubt there's anything that we could do for your problem. The tools we have to work with the IMEI and nv items have only worked for the S3 for me. Tried on several other Samsung models with no success.
Plus if it were to work on your device you'd already have had backups created. Like the OP said, he had to restore the original backup he had made before his problem ever occupied.
Have you tried flashing back to stock? Have you considered that with all the network upgrades T-Mobile has done that maybe the changes you made before to make it work are no longer valid? Have you called T-Mobile to make sure it's not a tower problem on their side?
Also, it's completely normal to never see 3g in the status bar...at least for our S3's anyway.
Sent from my SCH-I535 using Tapatalk 4
Click to expand...
Click to collapse
Save my phone please!!!
I' m having a same issue like all the others. I restored my imei, and I'm stuck on edge:crying:
Can you please help me?
Thank you in advance
ratcityrain said:
Can someone help me get my 4G restored? I lost my imei number ( was set to 0), I was able to use nv_items_reader_writer along with the SGS3 nv gen to inject my correct imei number back into the phone.
I have checked under status and my imei is no longer 0 & displays the correct imei, but still no 4G - only edge.
I then made a full nv backup, then restored that backup, but still nothing.
Lastly, I have even tried going into the hidden menus that take you into the phone setup/network setup & that did not work.
I am on the stock rooted rom (root66)
I did not have a original nv backup, hence why I am here lol
any other ideas?
Click to expand...
Click to collapse
I'm in the exact same boat and followed the same procedures. Still stuck on T-Mo EDGE. :/ I've read through and tried all other fixes in the forums (and Google searched like crazy for external solutions) but to no avail.
DocHoliday77, any chance you could PM me a solution, please?
aymex7566 said:
I' m having a same issue like all the others. I restored my imei, and I'm stuck on edge:crying:
Can you please help me?
Thank you in advance
Click to expand...
Click to collapse
cupC4KE said:
I'm in the exact same boat and followed the same procedures. Still stuck on T-Mo EDGE. :/ I've read through and tried all other fixes in the forums (and Google searched like crazy for external solutions) but to no avail.
DocHoliday77, any chance you could PM me a solution, please?
Click to expand...
Click to collapse
PM sent to both.
For people with this issue in the future, don't worry about posting, just PM me directly and you'll get a quicker response most of the time. Include the following in your PM
Device model
Current Rom
Current status (imei restored or not. Any other related issues)
How was the imei initially lost
Need to know this so I know what you will need.
Sent from my SGH-T999V using Tapatalk 4
I am using s3 atnt i747
Current ROM: rooted atnt Rom 4.1.1
Lost IMEI when I installed CM 10
Injected IMEI, had no backup, so created a new one by following a thread on XDA and injected it
The problem is I am stuck on edge, there is no 3G network on my phone.
Please help!!
DocHoliday77 said:
Give me a couple of min. Then check your PM's.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse

L900 note 2 (sprint) sprint network connection problem

rooted, but now sprint network (call/data) no connection :/
http://forum.xda-developers.com/showthread.php?t=1997150 mot sure if this what you are talking about?
well damm, nothing good in that thread lol
I guess is that time tomorrow to head back to bestbuy
Check your baseband ? It may say unknown if so flash radio using twrp or Odin . If that's not it connect to WiFi and update profile and prl
Sent from my SPH-L900 using Xparent Blue Tapatalk 2
downlink for tar file modem/radio
Epix4G said:
Check your baseband ? It may say unknown if so flash radio using twrp or Odin . If that's not it connect to WiFi and update profile and prl
Sent from my SPH-L900 using Xparent Blue Tapatalk 2
Click to expand...
Click to collapse
sir u have downlink for modem/radio odintar ext..??? via recovery operation aborted status 7...thanks....
I'm having the same problem now. Need help I have no data!
Sent from my SPH-L900 using XDA Premium HD app
not that I will have an answer or solution, but others who might would likely want a bit more information, like:
are you on a custom ROM, or stock? which version of stock? or did you use that leak?
if custom, how did you get there? (ie: method used to flash/odin, stock recovery/twrp)
if you're just rooted stock, how do you achieve that? which method for rooting, or was it a rooted rom/oneclick/etc?)
did you do anything just previous to the problem? or "out of the blue"? (it is also vaguely possible it Is a network problem on Sprints end...)
if you're going back to BustBuy, are you unrooted now? do you know how to get back to unrooted? (they may not honor your warr if you are)
the more info you give us, the more likely we will have advice. just saying.
You might want to try resetting sprint login data by ##72786# to see if it helps.
Thank you for the quick response but I finally figured it out. I just reinstalled stock Rom and started fresh.
DJ IZZY said:
Thank you for the quick response but I finally figured it out. I just reinstalled stock Rom and started fresh.
Click to expand...
Click to collapse
how exactly did you reinstall stock? i just got this problem after a reboot. i was on viperboy's stock K8 and just did a reboot and found my phone no longer has any network. i had twrp installed, the multi window mod, and the reboot option mod prior to this. i odined back to viperboy's stock J1 and had no resolution. i then went on to odin back to viperboy's stock JC, still nothing. i tried doing a restore from twrp off of J1, JC, and K8. after i reset everything and went back to stock i took the phone into sprint who had no way to fix it and could only offer to order me a refurbished replacement unit for whatever the price was. i have insurance from a third party but more then anything i need to know what exactly caused this and how to repair it. i noticed enough posts about this particular issue that i am hesitant to even think about rooting my next phone. when i do finally get a new one off insurance i of course would like to prevent this issue. however, using insurance after a month of owing my phone for this sort of issue really was not why i got the insurance.
Try this its the 3rd post down posted by garwynn. Flash ur rom and then flash the l900errfixljc.zip. hope this works http://forum.xda-developers.com/showthread.php?p=36181746#post36181746
samevo said:
Try this its the 3rd post down posted by garwynn. Flash ur rom and then flash the l900errfixljc.zip. hope this works http://forum.xda-developers.com/showthread.php?p=36181746#post36181746
Click to expand...
Click to collapse
thanks again, that solved my problem. i still wonder what in the world had my phone acting up in the first place. i believe i was one of the only people who had this just happen on a reboot without moving roms.
Thank you all for this thread. I just recovered from no mobile network as I accidentally flashed the wrong ROM. :good:
The process I had a failed flash that scared the @)*$& out of me. But i believe it flashed the modem.bin before it failed.
Then i flashed CWM again and all was good.

Hope someone can help me with no signal and loss of IMEI number

Hello,
I hope someone has some idea as to what I can do to fix my T889 Note 2 as right now it has no signal, does not register on the TMobile network and even worse, after playing with it some more it seems I have erased the IMEI in the EFS folder... Here is what I did:
I was initially using the Jedi X 7.2 ROM with Perseus Kernel, and everything was just fine. But I guess I was itching for something else :laugh: ... Reading thru the threads here I saw that some of us had flashed AT&T roms like Cleanrom without any problems. They said Cleanrom did not include an AT&T radio so it would work just fine for the T889. But just to be sure, after full wipe and flashing Cleanrom, I have also flashed a Tmobile Modem and Perseus Pernel for T889. That's when the problems started....
After flashing Cleanrom I had NO signal and the network unknown message... At that point the phone still showed the IMEI number... I have tried going back to Jedi X and Odin back to stock, nothing helped.... It still showed Unknown Network, and Not registered on network, impossible to make calls....
Reading some more thru other XDA threads I saw that someone had posted a solution that had worked for him by going into the Service menu (by pressing *#197328640#) and then going to UMTS, then COMMON then NV REBUILD and then ERASES ALL EFS1/2/3....
At that time I was pretty desperate and seeing that it had worked for someone else with a similar problem I tried it immediately... Now that I really give it some thought, I can't believe I pressed Erase all EFS !! :laugh:
That's when I also got the phone showing me IMEI 0.... I guess now I have lost my IMEI as well? I have not made any backups, so restoring is not an option for me at this point !!
Would anyone have any ideas to help me revive this phone? thanks a lot :victory:
P.S. I should add that I still do have the IMEI number of course, it's written on the back of the phone and the original box as well...
chriss29 said:
Hello,
I hope someone has some idea as to what I can do to fix my T889 Note 2 as right now it has no signal, does not register on the TMobile network and even worse, after playing with it some more it seems I have erased the IMEI in the EFS folder... Here is what I did:
I was initially using the Jedi X 7.2 ROM with Perseus Kernel, and everything was just fine. But I guess I was itching for something else :laugh: ... Reading thru the threads here I saw that some of us had flashed AT&T roms like Cleanrom without any problems. They said Cleanrom did not include an AT&T radio so it would work just fine for the T889. But just to be sure, after full wipe and flashing Cleanrom, I have also flashed a Tmobile Modem and Perseus Pernel for T889. That's when the problems started....
After flashing Cleanrom I had NO signal and the network unknown message... At that point the phone still showed the IMEI number... I have tried going back to Jedi X and Odin back to stock, nothing helped.... It still showed Unknown Network, and Not registered on network, impossible to make calls....
Reading some more thru other XDA threads I saw that someone had posted a solution that had worked for him by going into the Service menu (by pressing *#197328640#) and then going to UMTS, then COMMON then NV REBUILD and then ERASES ALL EFS1/2/3....
At that time I was pretty desperate and seeing that it had worked for someone else with a similar problem I tried it immediately... Now that I really give it some thought, I can't believe I pressed Erase all EFS !! :laugh:
That's when I also got the phone showing me IMEI 0.... I guess now I have lost my IMEI as well? I have not made any backups, so restoring is not an option for me at this point !!
Would anyone have any ideas to help me revive this phone? thanks a lot :victory:
Click to expand...
Click to collapse
Im in the same boat a few days ago. I already did a lot of things a nothing fix it hope someone can help us
Sent from my SGH-T889 using xda app-developers app
Sorry you had to go through this man.. i was going through the same thing when i first got my phone. Xda didn't have a forum for the T-Mobile Note II so i decided to root and flash one of the international version Roms without even making a backup first (dumb of me) then i went ahead and flashed "Android Revolution HD" Rom and lost signal and IMEI showed Unknown.. so i asked for help but no answers.. and then "cmenard" dropped a stock Rom which i'm going to link you to.. i flashed that and flashed the modem on top and that solved the problem for me. So i will go ahead and give you the link to the Stock Rom and the modem i flashed to get my phone to work. Please follow the instrucations. Hope this helps!
Stock Rom: http://forum.xda-developers.com/showthread.php?t=1957209
Modem: http://forum.xda-developers.com/showthread.php?t=1957380
Have a wonderful day!
-Addis
AddisG said:
Sorry you had to go through this man.. i was going through the same thing when i first got my phone. Xda didn't have a forum for the T-Mobile Note II so i decided to root and flash one of the international version Roms without even making a backup first (dumb of me) then i went ahead and flashed "Android Revolution HD" Rom and lost signal and IMEI showed Unknown.. so i asked for help but no answers.. and then "cmenard" dropped a stock Rom which i'm going to link you to.. i flashed that and flashed the modem on top and that solved the problem for me. So i will go ahead and give you the link to the Stock Rom and the modem i flashed to get my phone to work. Please follow the instrucations. Hope this helps!
Stock Rom: http://forum.xda-developers.com/showthread.php?t=1957209
Modem: http://forum.xda-developers.com/showthread.php?t=1957380
Have a wonderful day!
-Addis
Click to expand...
Click to collapse
Dude i lost my imei when i had my gs3 back in july.. I had no one to help me... thanks for hooking the dude up i can only wish someone like you helped me back then... you da man!!!!:good:
appreciate your kind words bro! I hope this helps him get his phone to work again. :fingers-crossed:
I would love to know if this worked for the people that posted no IMEI... If you could post if this worked... It would let me know to keep these two files in a special recovery folder. Thanks
Thanks very much Addis !!! I truly hope this works, will try as soon as I get home from work, in about an hour or so... After trying so many things I have doubts about everything now, but I am keeping my fingers crossed
(UPDATE) : Have managed to download the rom, I am not sure if the file is corrupted or anything, but I keep getting an error message: E:Can't open / external_sd/deodexed_UVALJ1.zip (bad)
Weird, since other roms have flashed just fine....
guys, one thing you MUST DO with gsm devices... back up your IMEI... this is actually stored in a partition on your device, and as of recent there is a handy little app in the themes and apps section to back it up. it is a free app found on the market and offered here on xda. before this there was a tool somebody created to back up and restore this partition
here is the app... download this, back up your IMEI (your efs partition). https://play.google.com/store/apps/...omizer&feature=nav_result#?t=W251bGwsMSwyLDNd
chriss29 said:
(UPDATE) : Have managed to download the rom, I am not sure if the file is corrupted or anything, but I keep getting an error message: E:Can't open / external_sd/deodexed_UVALJ1.zip (bad)
Weird, since other roms have flashed just fine....
Click to expand...
Click to collapse
Yes, probably a bad file... I'll upload it tonight after work for you or try downloading it again. Have a blessed day guys!
Sent from my SGH-T889
AddisG said:
Yes, probably a bad file... I'll upload it tonight after work for you or try downloading it again. Have a blessed day guys!
Sent from my SGH-T889
Click to expand...
Click to collapse
Thank you Addis, no need for you to upload, it seems I finally got a proper download... Flashed it with TeamWin Touch Recovery and no changes, I will try to flash it with CWM also, but that has given me problems with this file.... let's see... Thanks for your help, I will hit your thanks button as soon as I finish writing this...
If all else fails, I will just go ahead and return everything to factory settings and send it in for repair....
P.S. I should mention that I have used a tool found on the GS3 AT&T threads which has worked for my T889 to re-inject my IMEI number back... So now my IMEI number shows up again... But that's about it... Network is still listed as UNKNOWN and Status is listed as Disconnected...
Bestplayer55 I will send you a link to the thread where I have found the program used to reprogram your IMEI, in the evening when I get home.... While it has helped me get my IMEI back, I am still stuck without network or signal, but it may help you more
chriss29 said:
Thank you Addis, no need for you to upload, it seems I finally got a proper download... Flashed it with TeamWin Touch Recovery and no changes, I will try to flash it with CWM also, but that has given me problems with this file.... let's see... Thanks for your help, I will hit your thanks button as soon as I finish writing this...
If all else fails, I will just go ahead and return everything to factory settings and send it in for repair....
P.S. I should mention that I have used a tool found on the GS3 AT&T threads which has worked for my T889 to re-inject my IMEI number back... So now my IMEI number shows up again... But that's about it... Network is still listed as UNKNOWN and Status is listed as Disconnected...
Bestplayer55 I will send you a link to the thread where I have found the program used to reprogram your IMEI, in the evening when I get home.... While it has helped me get my IMEI back, I am still stuck without network or signal, but it may help you more
Click to expand...
Click to collapse
Have you gone into the settings menu, more settings, mobile network and tried connecting to T Mobile that way? If that doesn't work then try to reflash stock T Mobile ROM with Odin and it should reset your network.
Sent from my SGH-T889 using xda premium
chriss29 said:
Thank you Addis, no need for you to upload, it seems I finally got a proper download... Flashed it with TeamWin Touch Recovery and no changes, I will try to flash it with CWM also, but that has given me problems with this file.... let's see... Thanks for your help, I will hit your thanks button as soon as I finish writing this...
If all else fails, I will just go ahead and return everything to factory settings and send it in for repair....
P.S. I should mention that I have used a tool found on the GS3 AT&T threads which has worked for my T889 to re-inject my IMEI number back... So now my IMEI number shows up again... But that's about it... Network is still listed as UNKNOWN and Status is listed as Disconnected...
Bestplayer55 I will send you a link to the thread where I have found the program used to reprogram your IMEI, in the evening when I get home.... While it has helped me get my IMEI back, I am still stuck without network or signal, but it may help you more
Click to expand...
Click to collapse
MAN!! i cant wait to do the same and get mi imei back!!! have a good day!
Bestplayer55 said:
MAN!! i cant wait to do the same and get mi imei back!!! have a good day!
Click to expand...
Click to collapse
Hello again,
Bestplayer55 and anyone else who might need this, this is the tool I have used:
http://forum.xda-developers.com/showthread.php?t=1801997
It's written for the Galaxy S3 for AT&T and other carriers, but it worked for me on the T889 Note 2. Try to read all the instructions carefully .
One of the things you have to do is change a setting in the hidden menu which you access by dialing *#7284# using the stock dialer. In the hidden menu or PhoneUtil menu select USBSettingsMenu choose the correct mode and click ok. The correct mode for the Galaxy S3 is called RMNET + DM + MODEM mode, there was NO SUCH setting for my NOTE 2, but there is one that's very similar, so I chose that....
Then you jump to the section called IMEI Injection ... Pay attention to the way the IMEI is entered, it's a specific sequence, almost backwards....
You have the Instructions in the original thread there, or here:
http://forum.xda-developers.com/showthread.php?t=2077805
In the end thanks to Peoplearmy for developing this tool.
P.S. I just got home from work, so I will keep trying to flash different roms, now that I got my IMEI number back... Hopefully I can restore service as well...
Rhiannon224 said:
Have you gone into the settings menu, more settings, mobile network and tried connecting to T Mobile that way? If that doesn't work then try to reflash stock T Mobile ROM with Odin and it should reset your network.
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
Thanks a lot for the suggestions, I believe I have tried them before I lost my IMEI number, but I will try them again, it won't hurt !!
Phone is going back to Samsung for repair.... Nothing I have tried has worked ... Let's see what they can do
Hey I was messing with this on my T-Mobile Note II and I changed my RAT mode to WCDMA and now I'm unable to get LTE.
I've done EVERYTHING. I've even ODIN restored it. It WILL NOT connect to LTE anymore. Nothing I do to it makes it want to connect to LTE.
What do I do? Why won't it connect to LTE anymore even after flashing the factory image?
Will erasing EFS1/2/3 do anything to help or is that a really bad idea?
I have no clue what else there is to do. I've tried loading NV defaults but it gives an error for whatever reason.

[Q] Tmo T999 No 4G

Hello,
Obviously from my posts I'm new posting, however, I've been reading the forums for a while now and have been a huge fan at the massive support of devs and other helpful people. My question, and I've tried searching hi and lo on this site and others to get an answer:
I rooted my phone about 2 months ago and kept ROM, kernel, etc. stock until about 1 month ago when I flashed CM 10.1. Everything was awesome, loved the layout and the customization of the ROM. About 2 weeks ago, I lost 4G/H+ coverage, and voice service was sometimes spottier than usual. Wifi was and is still fine, but anytime I left and wifi network, I was immediately given EDGE speeds. I ran speedtest.net and the display is accurate.
I tried searching a couple of sites and I read that flashing a different ROM could fix the issue. I flashed Wicked which again was a great layout, but didn't fix the 4G issue. Lastly, today I followed an unroot thread and unrooted my phone. I didn't reset my counter with triangle away because I didn't think that was an issue in the lack of 4G. And I didn't want to dig myself any deeper on possibly bricking my phone. So now, my phone is stock (minus the counter) with ROM, kernel, and recovery. Any tips or suggestions?
Something to note: When I tried flashing CM10.1 the very first time, I received an error 7 message on CWM recovery. After reading a couple of posts on here, it looked like the workaround was to remove the first line of code on the updater-script file in the zip. Doing so made the ROM flash without any hiccups. Or were there?
Again thanks in advance for taking the time to read my post.
Go to settings> about phone> status
Look under imei, is it still there or is it 0.
Sent from my SGH-T999 using xda premium
Dakine,
Thanks for the reply. It says 0. Doesn't sound good based on the two options you said it could be.
Sent from my SGH-T999 using xda app-developers app
keeeoh said:
Dakine,
Thanks for the reply. It says 0. Doesn't sound good based on the two options you said it could be.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Its not really bad, but its not great. It means you lost your imei, it just happens randomly when flashing a ROM (no one knows why, it just rarely happens). Its not the ROMs fault, it just happens.
If you haven't made a backup of your imei, then you'll have to restore/inject the imei so that you can use 4g again. I'll have to look for the threads that explain how to do that and I'll post them for you.
Sent from my SGH-T999 using xda premium
DELETED.
Sent from my SGH-T999 using xda premium
keeeoh said:
Dakine,
Thanks for the reply. It says 0. Doesn't sound good based on the two options you said it could be.
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Check your PM's
Da Kine said:
Its not really bad, but its not great. It means you lost your imei, it just happens randomly when flashing a ROM (no one knows why, it just rarely happens). Its not the ROMs fault, it just happens.
If you haven't made a backup of your imei, then you'll have to restore/inject the imei so that you can use 4g again. I'll have to look for the threads that explain how to do that and I'll post them for you.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
I wouldn't worry bout it. Unless you get lucky it can take a lot of searching and piecing info together to find all that's needed. Imei restoration can still be found, but a lot isn't too clear. Data restore after imei restoration is not so easy.
Also, one or two of the important threads are gone. If you ever need help with this issue, you can just pm me.
Sent from my SGH-T999 using xda premium
Da Kine said:
This video will help you restore your imei, download links are in the video description.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Huge help! Thanks for locating this. About to read up on restoring my imei. Thanks again, especially for the quick reply.
DocHoliday77 said:
Check your PM's
I wouldn't worry bout it. Unless you get lucky it can take a lot of searching and piecing info together to find all that's needed. Imei restoration can still be found, but a lot isn't too clear. Data restore after imei restoration is not so easy.
Also, one or two of the important threads are gone. If you ever need help with this issue, you can just pm me.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
And thank you too Doc! I'll post my results in case anyone else has this problem. I'm certain this will work. Thanks for the future reach-out invite as well.
Hey Doc, does everything in the video I posted restore 4g or does it just restore the imei? If it doesn't restore 4g, could you please post here or pm what steps are needed to get 4g going again?
I would just like to have a copy of everything just in case something goes wrong with my imei backup, If I end up losing my imei.
Edit: Hey keeeoh I removed the video (thank you Doc for the heads up). If you need the link to it, just let me know and I'll pm it to you. Once again, thank you Doc for letting me know.
Sent from my SGH-T999 using xda premium
Da Kine said:
Hey Doc, does everything in the video I posted restore 4g or does it just restore the imei? If it doesn't restore 4g, could you please post here or pm what steps are needed to get 4g going again?
I would just like to have a copy of everything just in case something goes wrong with my imei backup, If I end up losing my imei.
Edit: Hey keeeoh I removed the video (thank you Doc for the heads up). If you need the link to it, just let me know and I'll pm it to you. Once again, thank you Doc for letting me know.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Well, Success!!! Needed to do a couple more things but both of you were able to get me back up and running on 4G.
Dakine - Already got the video, so thank you anyways.
Doc - Finished those steps, for some reason I can't PM you so if you can PM me again to let me know what I need to do avoid this in the future, as I'd love to go back to a rooted phone.
Thanks again guys!
keeeoh said:
Well, Success!!! Needed to do a couple more things but both of you were able to get me back up and running on 4G.
Dakine - Already got the video, so thank you anyways.
Doc - Finished those steps, for some reason I can't PM you so if you can PM me again to let me know what I need to do avoid this in the future, as I'd love to go back to a rooted phone.
Thanks again guys!
Click to expand...
Click to collapse
Awesome! Glad you got it working again.
Next thing is to create s n on-device backup of your nv data. This should only need to be done once, as you can't delete or overwrite it with common methods. It is also preventative so you shouldn't ever see this issue again.
Two methods
1. Install Andromizer and backup nv data
2. Install and open Terminal Emulator and enter this:
su
reboot nvbackup
That's it. Your phone will reboot and create the back up. If you do ever need to restore just enter this:
su
reboot nvrestore
Note: you cannot make copies of this as its stored across several partitions that are not easily accessible.
Sent from my SGH-T999 using xda premium
keeeoh said:
Well, Success!!! Needed to do a couple more things but both of you were able to get me back up and running on 4G.
Dakine - Already got the video, so thank you anyways.
Doc - Finished those steps, for some reason I can't PM you so if you can PM me again to let me know what I need to do avoid this in the future, as I'd love to go back to a rooted phone.
Thanks again guys!
Click to expand...
Click to collapse
What were the "couple more things"? My IMEI was wiped when I installed CWM and I had no signal showing at all. I have restored my IMEI and it now connects to Edge but it does not connect to 4G as it did. My wife's phone still gets a good 4G connection so I think it is the phone. I have tried wiping it, installing Cyanogen and have now reverted to Samsung factory UVDMD5. Everything about the phone seems to work great except it has no 4G. Tried changing APN type and forcing WCDMA -- no luck
Thanks!
touchsw said:
What were the "couple more things"? My IMEI was wiped when I installed CWM and I had no signal showing at all. I have restored my IMEI and it now connects to Edge but it does not connect to 4G as it did. My wife's phone still gets a good 4G connection so I think it is the phone. I have tried wiping it, installing Cyanogen and have now reverted to Samsung factory UVDMD5. Everything about the phone seems to work great except it has no 4G. Tried changing APN type and forcing WCDMA -- no luck
Thanks!
Click to expand...
Click to collapse
Check your PM's.
Sent from my SCH-I535 using Tapatalk 4
Low 2g and 3g but no 4g
I also can never get 4G in the metro. Even right next to somebody with the exact same phone and same T-mobile service who gets it fine.. I had flashed Synergy ROM and now S3Rx (stock kernel) but no improvement. My IMEI is valid, the Mobile Network type is shown as: GPRS:1. It shows the APN as T-Mobile USA (epc.tmobile.com). Baseband version is: T999UVDMD5.
I don't know anything else to check. Sure would like some ideas.
Test with someone else's SIM card. Or call T-Mobile as it sounds like it may be an account issue. Odin back to stock. If it still continues, it could also be hardware.
Sent from my SCH-I535 using Tapatalk 4
DocHoliday77 said:
Test with someone else's SIM card. Or call T-Mobile as it sounds like it may be an account issue. Odin back to stock. If it still continues, it could also be hardware.
Sent from my SCH-I535 using Tapatalk 4
Click to expand...
Click to collapse
Do you know where I can find the stock ROM for this phone?
Firmware thread. In my Sig. Stickied in development.
Sent from my SGH-T999L using Tapatalk 4
Missing IMEI I could not find other way to reach you but to post here
DocHoliday77 said:
Check your PM's
Hello Doc, I tried to pm you, but never received a reply, maybe my message is blocked.
I hope you can help me find cure for my phone!
After regular update of CM 10.2. using CWM my phone stopped connecting to 3g and 4g, I checked with T-Mobile and no problems on their end. I thought it was a failed upgrade reinstalled CM 10.2, didn't help. Then I totally reformatted Internal Storage and Installed LiquidSmooth 2.3.7, same thing, only EDGE data. Then I thought maybe I have to unroot and go back to Stock, and this time unrooted, upgraded baseband to the latest version, then installed Stock JB 4.3 but it didn't fix my problem. Then I came across this info about missing IMEIs, and there it was IMEI was showing Unknown at one point and now it is showing 0. I tried to follow some guides about nv_data.bin but my EFS folder doesn't seem to contain that file, it actually doesn't have more than that when compared to other user's screenshots.
At this point I rooted my phone again using TWRP with SU and De-knox and installed CM 10.2.0. Still EDGE only and IMEI showing 0.
Please, help! I can email screenshot of About Phone Status Page and EFS folder if you need.
Thanks!
Click to expand...
Click to collapse
Having same issue, could you help me??
DocHoliday77 said:
Check your PM's.
Sent from my SCH-I535 using Tapatalk 4
Click to expand...
Click to collapse
Doc,
I just purchased a T999 on eBay with this same problem. When I got the phone, it had CM installed on it and had no IMEI (IMEI=0). I put it back to stock 4.1.2, still no IMEI. I did IMEI repair using Z3X box which worked, now IMEI is normal. Problem is that it always stays on EDGE network. I'm sure this is something to to with the phone and not something else. I have a couple of other T999's available to use to test SIM card, location, etc. and all other T999's I've tried work just fine. Only this one that I had to restore IMEI.
Can you please give me some advice?

[q] !please! I need some help ladies and gents

I have the galaxy sgh-t999 and my imei is reading null and my service mode menu is blank. I cant figure this one out. Any help will greatly be appreciated. Please any help..
CERTIFIEDTFFT said:
I have the galaxy sgh-t999 and my imei is reading null and my service mode menu is blank. I cant figure this one out. Any help will greatly be appreciated. Please any help..
Click to expand...
Click to collapse
How it happened is more important to find out
If you flashed any rom and then it happened mean rom related issues
If you have nandroid backup that helped me to get my imei back once
Sent from my SGH-T999 using Tapatalk
anil2653 said:
how it happened is more important to find out
if you flashed any rom and then it happened mean rom related issues
if you have nandroid backup that helped me to get my imei back once
sent from my sgh-t999 using tapatalk
Click to expand...
Click to collapse
it was a refurbished phone and when i got it i factory restored it via (power/home/etc). And it comes on just fine as if it came straight out the box, but imei reads null and when i go into the settings mode via my dialer, it is blank... Im thinking a rom issue my self...
CERTIFIEDTFFT said:
it was a refurbished phone and when i got it i factory restored it via (power/home/etc). And it comes on just fine as if it came straight out the box, but imei reads null and when i go into the settings mode via my dialer, it is blank... Im thinking a rom issue my self...
Click to expand...
Click to collapse
Odin stock firmware. If it's still not working, your refurb needs to be refurbed.
aerowinder said:
odin stock firmware. If it's still not working, your refurb needs to be refurbed.
Click to expand...
Click to collapse
i cant find a good odin....
Everything you need is in my sig and stickied in development. After Odin flashing stock (root66 if you want root) if its still missing, PM me and I can help, probably.
Its usually not a rom issue unless you flashed cm.

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