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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.

[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..

Lost IMEI no data no WiFi, files only show in recovery, no efs Backup pls help

Hey everybody I hope someone can help me to rescue my phone.
I flashed carbon and ukm. Then wanted to change GPU governor to simpleondemand and got hot reboots. Was not able to fully boot and lost imei. I tried to restore my backup but they didn't want to boot either, same with another fresh install. Thereafter I deleted synapse folder through recovery and was able to boot my restored ROM. Now I have no imei, no data, no WiFi... In addition my files don't show the files on my phone anymore I only can see them in my recovery, all is still there. My problem is I don't have an extra efs backup only two ROM backups. First I would have liked to know how I can rescue my data? Cause its not showing on booted phone and because of that also not on computer via USB. Is there a proper way to save and what can I do to maybe save my phone. I flashed ROM for years on many different devices and something like that never happened before any help appreciated thanks!!!
Sent from my GT-N8000

Try http://forum.xda-developers.com/oneplus-one/general/fix-people-corrupt-efs-mobile-data-t2836389

OK saw this but my problem is I can't copy anything on my phone. Tried via USB and adb I can't get this file on my phone... Is there another possibility?
And its very strange that computer doesn't show files but my recovery does. And I have installed all drivers
Edit: ok found a way^^ through twrp recovery I could mount it to show on my computer so now will try
Sent from my GT-N8000

You can use TWRP to drag and drop files as MTP is a feature in TWRP now.

zephiK said:
You can use TWRP to drag and drop files as MTP is a feature in TWRP now.
Click to expand...
Click to collapse
Yup that is what I found out thanks :thumbup:
Sent from my GT-N8000

Ok get my data and imei back on coloros but no WiFi working... If I switch to cm same results as before... So this one doesn't work for me do you think I could make an RMA with color os on it?? Damn this feels painful... Never had so many problems on note 3 nexus 5 and previous devices...
Sent from my GT-N8000

Thread can be closed this one saved my ass
http://forum.xda-developers.com/oneplus-one/help/fix-brickloop-audio-fx-fc-efs-corrupt-t2879061
Sent from my GT-N8000

Glad that it worked Backup your EFS this time, just incase. Search on how to do it.

I tried all the methods but still unable to get my IMEI and baseband. i am unable to see efs partition. This happened while restoring the backup in TWRP. Please help.

nikku_hot123 said:
I tried all the methods but still unable to get my IMEI and baseband. i am unable to see efs partition. This happened while restoring the backup in TWRP. Please help.
Click to expand...
Click to collapse
tried all methods of what? Please be more specific if others are going to try and help

playya said:
tried all methods of what? Please be more specific if others are going to try and help
Click to expand...
Click to collapse
already posted here http://forum.xda-developers.com/showpost.php?p=55748042&postcount=111

nikku_hot123 said:
already posted here http://forum.xda-developers.com/showpost.php?p=55748042&postcount=111
Click to expand...
Click to collapse
I firstly flashed the coloros ROM then flashed back to cm11s and then followed the instructions of this brickloop thread you posted. That's the way I got my imei back and a fully working device. Hope this may help.
Sent from my One and only Bacon

Cris7ianO said:
I firstly flashed the coloros ROM then flashed back to cm11s and then followed the instructions of this brickloop thread you posted. That's the way I got my imei back and a fully working device. Hope this may help.
Sent from my One and only Bacon
Click to expand...
Click to collapse
Got it fixed. thanks
http://forum.xda-developers.com/showpost.php?p=55778183&postcount=139

nikku_hot123 said:
Got it fixed. thanks
http://forum.xda-developers.com/showpost.php?p=55778183&postcount=139
Click to expand...
Click to collapse
Good happy for you hope something like that won't happen to us again
Sent from my One and only Bacon

imei back up before rooting
Hi, I want to root my OPO but I don't wanna lose my imei while rooting the device.
Thus how can I back up imei before rooting?
Can smo help me with that?

angelus255 said:
Hi, I want to root my OPO but I don't wanna lose my imei while rooting the device.
Thus how can I back up imei before rooting?
Can smo help me with that?
Click to expand...
Click to collapse
There is no reason for you to lose IMEI while rooting...
Follow this guide to do everything you need to do to root: http://forum.xda-developers.com/showthread.php?t=2788632

urgent help no signal wrong kernel flashed

plz friends i by mistake flash wrong kernel for the device and now i try everything and iv got no signal nothing
i did again clean flash and not working what can i do? plz

bubu23 said:
plz friends i by mistake flash wrong kernel for the device and now i try everything and iv got no signal nothing
i did again clean flash and not working what can i do? plz
Click to expand...
Click to collapse
plz any help ??? i have no reciption i flash sprint kernel to g925f mobile

Kernel got nothing to do with signal.
Sent from my SM-G920T

ambervals6 said:
Kernel got nothing to do with signal.
Sent from my SM-G920T
Click to expand...
Click to collapse
plz people i can see my imei like 350000000000000000000 it looks not good so i have no reciption
it cant find the network register what can i do????
i did clean stock rom now waiting to solution

bubu23 said:
plz people i can see my imei like 350000000000000000000 it looks not good so i have no reciption
it cant find the network register what can i do????
i did clean stock rom now waiting to solution
Click to expand...
Click to collapse
Hello, I had sent you a message to try and help as much as I could but you opened a thread so I'll help you on here.
First. Double check all twrp folders using a file Explorer. Some roms when flashed through twrp automatically back up your efs partition.
Second. If the folders are blank then we'll proceed to try other methods of fixing your imei.
I assume since you went from having a blank imei to that weird number you tried one of the methods you found through Google.
There are ways to manually reenter your imei if the methods found on Google fail. Follow the instruction in the site below (I highly suggest using the terminal emulator method) and report back here. Your imei can be found on your Sim card or the bigger card your Sim came in.

Flash with stock 5.1.1 ROM via odin.
http://www.sammobile.com/firmwares/database/SM-G925F/

roydok said:
Flash with stock 5.1.1 ROM via odin.
http://www.sammobile.com/firmwares/database/SM-G925F/
Click to expand...
Click to collapse
i flashed all ready i was on 5.1.1

drock212 said:
Hello, I had sent you a message to try and help as much as I could but you opened a thread so I'll help you on here.
First. Double check all twrp folders using a file Explorer. Some roms when flashed through twrp automatically back up your efs partition.
Second. If the folders are blank then we'll proceed to try other methods of fixing your imei.
I assume since you went from having a blank imei to that weird number you tried one of the methods you found through Google.
There are ways to manually reenter your imei if the methods found on Google fail. Follow the instruction in the site below (I highly suggest using the terminal emulator method) and report back here. Your imei can be found on your Sim card or the bigger card your Sim came in.
Click to expand...
Click to collapse
there is no site below where?

Nothing is gonna work guys.your efs imei is damaged now.do you have an efs backup.if you have restore it

mariolcela said:
Nothing is gonna work guys.your efs imei is damaged now.do you have an efs backup.if you have restore it
Click to expand...
Click to collapse
i dont have backup efs

If it's illegal, then it doesn't belong here. End of story.
Get your phone to Samsung for repair, it'll cost but they might fix it

Anyway try to flash many stock fw like btu etc it should fix this issues & try latest modem too ok anyway my friend always after rooting device just backup efs ..
Sent from my SM-G925F using Tapatalk

You can try flashing this updated French stock 5.1.1 ROM via odin. The very latest.
http://www.sammobile.com/firmwares/download/51274/G920FXXU2BOG8_G920FOXA2BOG8_XEF/

thx my friend but i install my country latest and it still same can i try more and more and maybe it will be ok with one of them?
cause if 1 not good everything same no?
update: i have g925f

thereassaad said:
Anyway try to flash many stock fw like btu etc it should fix this issues & try latest modem too ok anyway my friend always after rooting device just backup efs ..
Sent from my SM-G925F using Tapatalk
Click to expand...
Click to collapse
you say like btu what is btu?

bubu23 said:
you say like btu what is btu?
Click to expand...
Click to collapse
Btu for united Kingdom its best stock rom just try it my friend
Sent from my SM-G925F using Tapatalk

mythos234 said:
If it's illegal, then it doesn't belong here. End of story.
Get your phone to Samsung for repair, it'll cost but they might fix it
Click to expand...
Click to collapse
This right here.
I have cleaned this thread, and I don't want to see any posts about IMEI modifying or anything illegal here.
You can try stock flashing, rebuilding an EFS partition somehow (probably impossible) or repair shop, but any talk of anything illegal and the moderators will take action on your account.
Thanks.

Have you tried searching for a Galaxy s6 efs repair script?

If nothing has worked you definitely need to go with a repair shop. Either a third party repair or try to warranty replace your phone through Samsung. If you go the Samsung route Odin flash 100% stock firmware then send it in to them and see what they say

yeh i boght new s6 edge lolllllll bbut i i learned to back up

[Q] PLEASE, desperate help needed.

Got a Samsung Galaxy S8 Plus a few days ago, installed TWRP and rooted etc and installed CarHDRom with no problems at all.
However, when version 2.1 came out, I flashed it and all worked perfect...BUT....could not and can not make any calls or texts etc.
Imei info screen is showing all zeros etc.
Can someone please help me to get back connected so my imei number is back and i can actually use the sim??
Please, i'm desperate....been trying for hours.
The first screenshots shows you the contents of my backup in the TWRP folder.
Other 3 showing errors i'm getting.
thanks
Matt.

please check, and tell me, what does it say on the back of the phone?

matthew33 said:
Got a Samsung Galaxy S8 Plus a few days ago, installed TWRP and rooted etc and installed CarHDRom with no problems at all.
However, when version 2.1 came out, I flashed it and all worked perfect...BUT....could not and can not make any calls or texts etc.
Imei info screen is showing all zeros etc.
Can someone please help me to get back connected so my imei number is back and i can actually use the sim??
Please, i'm desperate....been trying for hours.
The first screenshots shows you the contents of my backup in the TWRP folder.
Other 3 showing errors i'm getting.
thanks
Matt.
Click to expand...
Click to collapse
I imagine you flashed stock to see if that can fix the issue?
twrp sometimes fail to restore the carpet containing the ime info so if its not working with your backup go back to stock, start again your twrp/root and flash another rom

sensationvsgalaxy said:
please check, and tell me, what does it say on the back of the phone?
Click to expand...
Click to collapse
Back of phone?
Just says samsung.

galarond said:
I imagine you flashed stock to see if that can fix the issue?
twrp sometimes fail to restore the carpet containing the ime info so if its not working with your backup go back to stock, start again your twrp/root and flash another rom
Click to expand...
Click to collapse
I installed stock rom, unrooted etc, then re-rooted etc...but under IMEI it still says all zeros.
Any ideas how i get my imei back?
Otherwise i'm stuck with a £800 brick.
please help
Matt

I've just located the IMEI number on the side of my retail box the phone came in.
But how do i restore it back to phone?
Matt.

matthew33 said:
I installed stock rom, unrooted etc, then re-rooted etc...but under IMEI it still says all zeros.
Any ideas how i get my imei back?
Otherwise i'm stuck with a £800 brick.
please help
Matt
Click to expand...
Click to collapse
just flash back to stock and dont root or anything, watch wich csc r u flashing cause thats the file that restores the efc info...just flash to stock u dont need to unroot ull lost root if u go back to stock remember to not flash using home csc or ull not wipe nothing and ull not get efs carpet back
try to use a different csc to force full wipe of the phone otherwise ull not fix it....personal experience
before rooting again first see if the imei info is back

Just a friendly reminder that on any internet forum, it's helpful and courteous to use a subject line that's informative about your topic. That way, other users can tell at a glance whether your thread is something that they want to read about or are able to contribute to.

galarond said:
just flash back to stock and dont root or anything, watch wich csc r u flashing cause thats the file that restores the efc info...just flash to stock u dont need to unroot ull lost root if u go back to stock remember to not flash using home csc or ull not wipe nothing and ull not get efs carpet back
try to use a different csc to force full wipe of the phone otherwise ull not fix it....personal experience
before rooting again first see if the imei info is back
Click to expand...
Click to collapse
I have flashed back to stock, but still shows all zeros in imei and will not let me dial out or send texts etc.
Do you have a link to the exact stock firmware you mean?
Coz i've tried a few and none are working
thamks
Matt.

matthew33 said:
I have flashed back to stock, but still shows all zeros in imei and will not let me dial out or send texts etc.
Do you have a link to the exact stock firmware you mean?
Coz i've tried a few and none are working
thamks
Matt.
Click to expand...
Click to collapse
wich firwmware csc r u using?