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[Q] Galaxy S does not show any carrier signal after factory reset

I had successfully unlocked my galaxy s using the procedure suggested on the related XDA forum.. the phone worked fine with a different network later on i accidently clicked the factory reset option.. now although the phone says its unlocked but i cannot see any network signal and the phone does not work on any sim card.
Pls can someone help
PS: I can switch on the phone and perform all other functions.

asif1981 said:
I had successfully unlocked my galaxy s using the procedure suggested on the related XDA forum.. the phone worked fine with a different network later on i accidently clicked the factory reset option.. now although the phone says its unlocked but i cannot see any network signal and the phone does not work on any sim card.
Pls can someone help
PS: I can switch on the phone and perform all other functions.
Click to expand...
Click to collapse
I could not say for sure because I don't know what process you used, but I Would say you just may need to downlaod the Factory TAR file using oden into your phone. Just make sure you Don't use the PIT file when you do it. Look in the Android Development section for the Tar file and the process of using Oden.

thanks for the reply.. did try loading just the tar files using odin but still no progress... another info, when i turn on the phone the notification drop-down does show the name of the network and says no service.. does that ring a bell ??

Cracked it !!
turns out that the software factory reset isn't all that effective and i tried the the hard reset by entering the code *2767*3855#... it worked like a charm and this time I had the carrier signal !!!!

asif1981 said:
turns out that the software factory reset isn't all that effective and i tried the the hard reset by entering the code *2767*3855#... it worked like a charm and this time I had the carrier signal !!!!
Click to expand...
Click to collapse
Good to hear you resolved your issue.

Hi, is having a corrupted IMEI prohibits you from getting network signal? I have weird IMEI characters (not numbers) after unlocking SGS4G and I cannot get any netwrok signal. Hope you can advise me what to do or check. I have exactly the sasme IMEI with this post.
http://forum.xda-developers.com/showthread.php?t=1030728&highlight=imei

hey man. try this and see if it helps at all:
http://forum.xda-developers.com/showthread.php?t=1142829

jager555 said:
hey man. try this and see if it helps at all:
http://forum.xda-developers.com/showthread.php?t=1142829
Click to expand...
Click to collapse
Hi Jager555, do you think it would be wise to try it out. I am not that confident to try it out because we have a different IMEI situation and I am afraid to brick another phone (bricjed captivate before). That is why I am waiting for someone to update the toher thread because that thread has the same IMEI that I have. If I won't be bricking my phone, then I would more than happy to try it out.

did you try disabling wifi calling? Same thing happened to me
Sent from my SGH-T959V using XDA Premium App

i cant guarantee that you wont brick your phone. its just something to try. as ricky said, disable the wifi and see if that helps, but if not, your phone doesnt work either way. im not sure if you can flash another rom and see if that helps too.
the thread i posted said "I recently used one of the unlocking tools that are available on the Android market, and one of them screwed up my IMEI so badly (it contained garbage characters, not just numbers)"
i figure thats the problem you have. if you dont want to try it, bump this thread and try to get a response from the smarter people. lol. im still a noob, good luck! i hope you get it fixed soon.

IMEI Messed up, help please!

I was told to post here so:
Hi,
Yesterday I flashed a custom ROM , the rom somehow messed up my IMEI number.
Then i went back to the forum and found out that everyone who flashed the rom got his IMEI messed up and we all got the same IMEI now, i still have calls working but im afraid they will stop working soon, i know what was my original IMEI, can anyone help us please. (Heres the rom i flashed: http://forum.xda-developers.com/showthread.php?t=1034130)
I saw that the devs on samsung captivate managed to restore their imeis, there should be a way to do that to the nexus s.

Same Problem with my phone...

same here
I'm restore my backup .. and nothing change
and imei still changed :S

Same here, i think the phone is as good as network dead.

Hi all, I also was unfortunate to flash this rom resulting in the changed imei issue. My Phone was displaying emergency calls only and i was unable to connect to data services. I used Odin to flash back to stock GRH 78 ticking the phone efs clear box . After rebooting i checked my imei number but it still displays the wrong number. However my phone now connects to the network and i can make and recieve calls and data is enabled. Not a full fix and i am not sure for how long it will work but definately an improvement on the very expensive paperweight i had. Hopefully a full fix will come soon.

Trying that~!
UPDATE :
Nope Odin again didn't help.

Isn't it kinda stupid to discuss this in not only one or two but four threads? I get it, you guys want a fix and I feel with you, but having four threads will only cause confusion.
How about you all agree on one and work together to fix it instead of dividing your efforts?
Sent from my Nexus S using Tapatalk

bloodhawk said:
Trying that~!
UPDATE :
Nope Odin again didn't help.
Click to expand...
Click to collapse
Sorry to hear that worked for me. I'm in UK on vodafone network. Lets hope a solution is found real soon.

james7dean said:
Sorry to hear that worked for me. I'm in UK on vodafone network. Lets hope a solution is found real soon.
Click to expand...
Click to collapse
Can you explain what version of Odin you used - Odin3 v1.8 ??
What rom did you flash stock GRH78 ??
Did you use a .pit file and if yes which one ??
What boxes were ticked and de-ticked in Odin ??
Cheers mate

Hi,
I used odin 3v1.8 and the stock GRH 78 rom. I opened odin and loaded the
bootloader, Pda and scs files and ticked the phone efs clear box ,this was the only box i manually ticked all other boxes were left in their default state. i did not have a pit. file. Previous to using odin I had just unlocked my bootloader as it was locked. Odin won't work with bootloader locked all atempts to access download mode were met with a unlock bootloader screen.
After flashing I checked my emei no. but was disappointed to find no change. I then checked for system updates and clicked on the update which started to download. It then suddenly dawned on me that i had not linked my phone to my router and that data was enabled. I cancelled the Gingerbread update and went into notifications and saw my network instead of the previous Emergency Calls Only. A quick phone call verified that my phone was now connecting to the network. I then connected to wifi and installed the update.
I am still stuck with the wrong emei but can now connect to the network and
have restored my favourite rom from a nandroid. The only issue i now have is the
wrong emei but for now my phone functions perfectly

RisinT96 said:
Yesterday I flashed a custom ROM , the rom somehow messed up my IMEI number.
Click to expand...
Click to collapse
Probably something messed with your /efs partition.
james7dean said:
I used odin 3v1.8 and the stock GRH 78 rom. I opened odin and loaded the bootloader, Pda and scs files and ticked the phone efs clear box ...
Click to expand...
Click to collapse
Why did you have to do that? I don't assume you have a backup of /efs, do you?
james7dean said:
The only issue i now have is the wrong emei but for now my phone functions perfectly
Click to expand...
Click to collapse
I wonder how long it'll work ...
Y'all could try to look in the forums of the various Samsung Galaxy S variants, AFAIK there are ways to restore your IMEI on this kind of Samsung phone, maybe they apply to the Nexus S as well.

[Q] Very Bad S3 issue going for me..Would appreciate some help!!!

I know I am new to XDA and what not.. but I been flashing CWM roms to my phone for months, normally i never use odin for anything because its not my cup of tea...
Last night I was flashing a ODIN rom to my phone and something went wrong...
I managed to get the ROM straightened out and working... but now my service is screwed...
I am missing a ton of folders and files from my root folders... and I cannot use my phone for anything, 3g, 4g, Calls, MMS, SMS... nothing
My IMEI is missing and just says 0 and my ERI says none... but i believe i was successful in reinserting my imei.
Verizon swapped out many sim cards and still nothing... it also askes me to switch to global mode every 30 secs..
Please let me know if you can guide me though restoring my phone back to functionality..
Thanks
Screenshots are in the attachments

MedicalGenius88 said:
I know I am new to XDA and what not.. but I been flashing CWM roms to my phone for months, normally i never use odin for anything because its not my cup of tea...
Last night I was flashing a ODIN rom to my phone and something went wrong...
I managed to get the ROM straightened out and working... but now my service is screwed...
I am missing a ton of folders and files from my root folders... and I cannot use my phone for anything, 3g, 4g, Calls, MMS, SMS... nothing
My IMEI is missing and just says 0 and my ERI says none... but i believe i was successful in reinserting my imei.
Verizon swapped out many sim cards and still nothing... it also askes me to switch to global mode every 30 secs..
Please let me know if you can guide me though restoring my phone back to functionality..
Thanks
Screenshots are in the attachments
Click to expand...
Click to collapse
Well looks like you lost your imei bud. If you would have read while. And such you had to back your imei if you did then simply restore if now you have to use that qspt to get your imei
I will get you a link hold on
Edit: http://forum.xda-developers.com/showthread.php?p=31051731

MedicalGenius88 said:
I know I am new to XDA and what not.. but I been flashing CWM roms to my phone for months, normally i never use odin for anything because its not my cup of tea...
Last night I was flashing a ODIN rom to my phone and something went wrong...
I managed to get the ROM straightened out and working... but now my service is screwed...
I am missing a ton of folders and files from my root folders... and I cannot use my phone for anything, 3g, 4g, Calls, MMS, SMS... nothing
My IMEI is missing and just says 0 and my ERI says none... but i believe i was successful in reinserting my imei.
Verizon swapped out many sim cards and still nothing... it also askes me to switch to global mode every 30 secs..
Please let me know if you can guide me though restoring my phone back to functionality..
Thanks
Screenshots are in the attachments
Click to expand...
Click to collapse
Please check the Forums. This was Stickied a long while ago.
[Tool][Win] Repair IMEI & Roaming ERI issues
If you didn't back up your IMEI info prior to flashing ROM's. no one else can be blamed. Always read every post before trying anything.

DaemonAshra said:
Please check the Forums. This was Stickied a long while ago.
[Tool][Win] Repair IMEI & Roaming ERI issues
If you didn't back up your IMEI info prior to flashing ROM's. no one else can be blamed. Always read every post before trying anything.
Click to expand...
Click to collapse
Beat me with the link -.-

GoonAssJuan said:
Beat me with the link -.-
Click to expand...
Click to collapse
Ok, I tried this programs and the others... still no luck on restoring service.
Anything else I could do??

MedicalGenius88 said:
Ok, I tried this programs and the others... still no luck on restoring service.
Anything else I could do??
Click to expand...
Click to collapse
So you tried going back to stock and all?

GoonAssJuan said:
So you tried going back to stock and all?
Click to expand...
Click to collapse
I removed CWM Recovery,,, back to stock recovery...
restored the samsung official VZW rom and binary.
I removed the superuser and the unlock tools...
I still have no ERI and no service..
when i remove the sim card it tells me to insert it... obviously
when i put it back in an reboot it says "searching for service" and "everything i screenshotted... the imei is what i inputed with the tool in the imei tool thread you guys gave me...
however my wifi does work and my rom boots just fine... and when i factory reset my number shows up in the MDN field...
it honestly seems like the way the phone would communicate with the towers is screwed.

MedicalGenius88 said:
I removed CWM Recovery,,, back to stock recovery...
restored the samsung official VZW rom and binary.
I removed the superuser and the unlock tools...
I still have no ERI and no service..
when i remove the sim card it tells me to insert it... obviously
when i put it back in an reboot it says "searching for service" and "everything i screenshotted... the imei is what i inputed with the tool in the imei tool thread you guys gave me...
however my wifi does work and my rom boots just fine... and when i factory reset my number shows up in the MDN field...
it honestly seems like the way the phone would communicate with the towers is screwed.
Click to expand...
Click to collapse
Have you tried factory resetting using the dialer code on a stock ROM? I had the same issue even after I ODINd back to stock until I used the code.
Sent from my SCH-I535 using Tapatalk 2

Chyrux said:
Have you tried factory resetting using the dialer code on a stock ROM? I had the same issue even after I ODINd back to stock until I used the code.
Sent from my SCH-I535 using Tapatalk 2
Click to expand...
Click to collapse
I have but everytime i put the code into the dialer it does nothing.
I am really stumped haha...
this is why i don't use ODIN.. I am not experience enough with it..

DaemonAshra said:
Please check the Forums. This was Stickied a long while ago.
[Tool][Win] Repair IMEI & Roaming ERI issues
If you didn't back up your IMEI info prior to flashing ROM's. no one else can be blamed. Always read every post before trying anything.
Click to expand...
Click to collapse
Alright, this just comes off as being a jerk. It sounds like he did (try to) backup his IMEI. Also, I don't see him blaming anyone for his "mishap". He was also very polite in asking for help. So was there a need in being a jerk(not just directed at you, as you were one of 3 or so to act as if he was wrong here)? I mean isn't the community here to help people? I could understand if he said ......OMG, I brickated my fone.....I hate you guys, you borked my phone.......But he did neither of those. It sounds like he read the guide, and still something got screwed up along the way. It happens. But there really isn't a need for posts like this.

Does anyone have a fix to help me???
My Phone detects no service at all... zero bars....
the wifi works, the bluetooth, pretty much the whole rom.
I just flashed the VRALF ROM directly from samsung and still nothing...
My IMEI and ICCID are there...My MEID is also there (dec and hex)
My PRL version is there... still no ERI
It says the signal strength is -120 dBM 99 asu
My Android Version is 4.0.4 at the moment
Baseband: I535VRLF2
Kernel: 3.0.8-618049-user [email protected] #1 SMP PREEMPT Fri Jun 15 07:53:02 KST 2012
Build Number: IMM76D.I535VRALF2
Hardware Version: I535.10

Ok guys I managed to get my phone to make and receive calls and sms...... but my roaming indicator keeps flashing all the time and i have no data at all....
Any ideas... I'm in a better boat than i was... haha

This owner had a similar problem, perhaps - they fixed the IMEI and related issues as described in a helpful link and their followup post:
http://forum.xda-developers.com/showthread.php?t=1984608&highlight=imei
You might consider taking the suggested link within that thread, then doing what the original poster did to restore their phone's configuration and see if that helps get out of roaming.
- ooofest

ooofest said:
This owner had a similar problem, perhaps - they fixed the IMEI and related issues as described in a helpful link and their followup post:
http://forum.xda-developers.com/showthread.php?t=1984608&highlight=imei
You might consider taking the suggested link within that thread, then doing what the original poster did to restore their phone's configuration and see if that helps get out of roaming.
- ooofest
Click to expand...
Click to collapse
Its all fixed... thanks to everyone who helped...

Check out the thread "Comprehensive IMEI Backup" in the android dev section for complete, 100% security in flashing. Its imperative that new users view this thread before flashing anything. No idea why its not stickied or made apparent in the rooting guides.
Sent from my SCH-I535 using Tapatalk 2

MedicalGenius88 said:
Its all fixed... thanks to everyone who helped...
Click to expand...
Click to collapse
What did you end up doing to fix it. Just for future reference.

Anyone available to guide through IMEI recovery?

I installed hellsROM and things were going good, but i decided to install vrblk3 because of signal issues and lost my IMEI in the process. .. I have followed the steps and it doesn't seem to want to recognize my phone... I feel like i have the drivers already I guess maybe I need to try to redownload... but if someone could direct message me or something and kind of help me through this process i'd be eternally grateful...

http://forum.xda-developers.com/showthread.php?t=1867442

ddurandSGS3 said:
http://forum.xda-developers.com/showthread.php?t=1867442
Click to expand...
Click to collapse
I know man I'm following that thread and i don't know if the drivers aren't installed corrently or what.. my cpu recognizes my phone but not the tool

never had to do it, cant really offer much help, sorry.
just figured id post that to see if you had seen it.
hopefully someone else has a better answer for you.

ddurandSGS3 said:
never had to do it, cant really offer much help, sorry.
just figured id post that to see if you had seen it.
hopefully someone else has a better answer for you.
Click to expand...
Click to collapse
thanks man

wow.. no wonder those things are stickied.. So the first time I tried using the tool it wouldn't connect to my phone and the tool would freeze. This time it instantly found it and i repaired it.. .I'm now installing cm10.1 to switch setting and see if thats why i still have no service

kickenwing13 said:
wow.. no wonder those things are stickied.. So the first time I tried using the tool it wouldn't connect to my phone and the tool would freeze. This time it instantly found it and i repaired it.. .I'm now installing cm10.1 to switch setting and see if thats why i still have no service
Click to expand...
Click to collapse
Ihave no service.. .it says service state: out of service. I do have my restored IMEI, but I have no service.. I restored to stockrooted66 or whatever.. I then ran the IMEI repair steps, then tried the factory reset.. no louck. unlocked bootloader created back up and installed cm10.1 to toggle from rui or something.... typical. If i mess something up during an installation sometimes verizon suspends my account and i call the 877 number to activate 4g service and it tells me that it's suspended and press one to activate.. So i activated and this is the first time i haven't got service.... I am kind of freaking out.. it says it could take up to an hour but the slowest it's been is like 5 minutes... No lluck .. i'm freaking out a bit. why can't i get service...

check to make sure your network settigns are correct in the more settings area.

ddurandSGS3 said:
check to make sure your network settigns are correct in the more settings area.
Click to expand...
Click to collapse
it all said lte,cdma and all that.. as far as the other stuff i am not sure what else it's supposed to look like .

kickenwing13 said:
it all said lte,cdma and all that.. as far as the other stuff i am not sure what else it's supposed to look like .
Click to expand...
Click to collapse
okay anyone else that runs into this.. I lost imei after trying to install a radio.. so I did the restore. It worked flawlessly ... Unfortunately lost data. This has happened before.. a lot... so I decided to install cm10.1 and switch the mobile network . this didn;t work.. I called verizon to activate 4g account because in the past they have suspended my account and that was the only reason i still didnt have service.. .So it was in fact suspended... i activated.. still no data.. reflashed root66.tar again.. did the code. and i'm good now..

kickenwing13 said:
okay anyone else that runs into this.. I lost imei after trying to install a radio.. so I did the restore. It worked flawlessly ... Unfortunately lost data. This has happened before.. a lot... so I decided to install cm10.1 and switch the mobile network . this didn;t work.. I called verizon to activate 4g account because in the past they have suspended my account and that was the only reason i still didnt have service.. .So it was in fact suspended... i activated.. still no data.. reflashed root66.tar again.. did the code. and i'm good now..
Click to expand...
Click to collapse
Yeah those " other settings that I didn't know what they were supposed to be" were the only ones that mattered. CDMA subscription > ruim/sim
Sent from my SCH-I535 using xda app-developers app

[Q] Baseband

Hello,
I've been looking around for a solution for this issue.
My friend tried to root him phone, and I have no idea what he did... now his baseband is gone... Baseband version unknown.
I tried to install a new xxpe and then ddlf2 still no connection.
I'll get him to JellyBam A4 same as my phone. is there any file(s) I can copy from my phone to his to make it alive again?
his IMEI from *#06# is blank.
Any ideas?
Thanks in advance

try this method..
http://forum.xda-developers.com/showthread.php?t=1308546
Sent from my GT-I9003 using xda app-developers app

the_blue_wyvern said:
Hello,
I've been looking around for a solution for this issue.
My friend tried to root him phone, and I have no idea what he did... now his baseband is gone... Baseband version unknown.
I tried to install a new xxpe and then ddlf2 still no connection.
I'll get him to JellyBam A4 same as my phone. is there any file(s) I can copy from my phone to his to make it alive again?
his IMEI from *#06# is blank.
Any ideas?
Thanks in advance
Click to expand...
Click to collapse
since IMEI is blank, i think the only solution there is to go to service center and let them repair it..but, if u have backup the EFS folder which contains the important files then there's a 99% u can use the phone..flashing on different ROM wont make the problem to be solve since IMEI is blank, just like my phone with no IMEI, now it is just like IPOD touch..hehe

Well he didn't back anything up.. lol
What if I took my working EFS file from my phone to his, will that work?
will he get the same IMEI as me?
can I mod the file(s) to his number, which I have from under the battery slot?

the_blue_wyvern said:
Well he didn't back anything up.. lol
What if I took my working EFS file from my phone to his, will that work?
will he get the same IMEI as me?
can I mod the file(s) to his number, which I have from under the battery slot?
Click to expand...
Click to collapse
you're thinking is good that you want to ask for his EFS but sadly it is not possible coz IMEI is a unique identifier for every phone just like a PRODUCT KEYS to every computer, if that detected that 2 IMEI was using, one will be blocked..that's what i think..
if we can mod IMEI then i think no one will be having problem if in case there's IMEI has been lost..right?

mizukage said:
you're thinking is good that you want to ask for his EFS but sadly it is not possible coz IMEI is a unique identifier for every phone just like a PRODUCT KEYS to every computer, if that detected that 2 IMEI was using, one will be blocked..that's what i think..
if we can mod IMEI then i think no one will be having problem if in case there's IMEI has been lost..right?
Click to expand...
Click to collapse
well, I know it is unique, and I do have his original IMEI.
and as far as I read it can be restored in case you already made a EFS backup.
so my phone has a working IMEI files... same phone, only diff numbers.. they have to be encrypted at some level, and we are talking about android here, probably not encrypted.. I Don't know.
guess it is a long shot... but maybe I can alter my numbers to his...
IMEI and product serial number, all the data is written under the battery slot.
I'm no developer just thinking out loud... lol, maybe someone can light up the way for me, if my idea makes any sense on any level.

the_blue_wyvern said:
well, I know it is unique, and I do have his original IMEI.
and as far as I read it can be restored in case you already made a EFS backup.
so my phone has a working IMEI files... same phone, only diff numbers.. they have to be encrypted at some level, and we are talking about android here, probably not encrypted.. I Don't know.
guess it is a long shot... but maybe I can alter my numbers to his...
IMEI and product serial number, all the data is written under the battery slot.
I'm no developer just thinking out loud... lol, maybe someone can light up the way for me, if my idea makes any sense on any level.
Click to expand...
Click to collapse
i tried last night flashing the default IMEI and i can say that my phone got signal although its IMEI is not the original one..hehe but i think its ok for a while as long as u can use the phone..right?i am also seeking for the answer to be solve on IMEI issues if someone hasn;t back up there EFS like me

mizukage said:
i tried last night flashing the default IMEI and i can say that my phone got signal although its IMEI is not the original one..hehe but i think its ok for a while as long as u can use the phone..right?i am also seeking for the answer to be solve on IMEI issues if someone hasn;t back up there EFS like me
Click to expand...
Click to collapse
So now you have 2 phones running on same IMEI number?

the_blue_wyvern said:
So now you have 2 phones running on same IMEI number?
Click to expand...
Click to collapse
wrong understanding..hehe i have 1 phone and becoz of my laziness flashing some ROMS my IMEI has been corrupted and never been use for a months, and after how many days, weeks or months searching and reading here at xda for an answer, i found out and tried that we can use fake IMEI which starts at 0049xxxx and flashed it, now i can use my phone now with fake IMEI and i am happy with that eventhough it is not the orignal one..now i am thinking what will be the risk if we use the fake IMEI and asking here at xda..i open new thread, hoping for someone will explain it to me.

mizukage said:
wrong understanding..hehe i have 1 phone and becoz of my laziness flashing some ROMS my IMEI has been corrupted and never been use for a months, and after how many days, weeks or months searching and reading here at xda for an answer, i found out and tried that we can use fake IMEI which starts at 0049xxxx and flashed it, now i can use my phone now with fake IMEI and i am happy with that eventhough it is not the orignal one..now i am thinking what will be the risk if we use the fake IMEI and asking here at xda..i open new thread, hoping for someone will explain it to me.
Click to expand...
Click to collapse
care to share how to set up phone with the fake IMEI?
would be grateful..