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[Q] No signal or No service on Samsung Galaxy S

I noticed that my galaxy was sluggish & decided to preform the solution here: hemorrdroids.net, speed up your Samsung galaxy S
now in the process, i got it wrong several times whiles flashing with the odin. when I finally got it right and reinstalled the firmware, the phone displays a no service notification, but show the name of the network chip in it. no signal bars as if it were locked. I bought it as unlocked phone. now I cant even search for a single network in my country. when u do a manual search, it returns nothing. if u try the dialer it says not registered to network..
does anyone know how to get my signal a GPS working?? please!!!!!!!!!!!!!

Hmm... I've got the same problem as you... Flashed docs to my Galaxy S Yesterday and now it show no service notification.... Anyone who have a got an idea?

I am also facing the same problem. Any one who has solved it ?

Got the same problem, from 1 day i have notification (no service)

Got the same problem plz plz some one helpp

Not sure if it's the same problem you folks are having, but there's a thread on here entitled "Problem with Airplane Mode on Epic after installing midNight ROM" that describes a problem with no signal after a ROM flash, and a solution via using Odin to update just the modem.
I would post a link, but the forum here won't let me because I don't have enough posts. Your mileage may vary, but the symptoms sound similar so it might give you a place to start even if the fix doesn't fix you.

I too am having the same problem. It seems that my Phone (Galaxy SC-02b) does not recognize the modem/internal antena.
I installed the Darky's Rom on it, and it runs great. Except the signal part. I can flash it back to the original, but I want to see if I can make it work.
I think it's just a matter of picking out the correct modem tar, but I can't find the right one. My phone is a little bit odd, It's a Japanese Galaxy, so not sure if I can find it here. Unfortunately my Japanese is not good enough to go scouring the japanese forums.
Thanks for any help.

Hey Yefimenko what 3G bands are used in Japan 1900/850 or maybe 900/2100 or 1700/2100 ? Can you find that out ? then you need to flash modem that supports that , Europe support 900/2100 US/Canada/Australia 850/1900 and AWS 1700/2100 Tmobile US /Wind? mobilicity Canada
Hitec

We've been through all of this before the Japanese phones will only work with the Japanese kernel. Symptoms are usually sin not recognized and no radio signal. QUOTE=yefymenko;11612862]I too am having the same problem. It seems that my Phone (Galaxy SC-02b) does not recognize the modem/internal antena.
I installed the Darky's Rom on it, and it runs great. Except the signal part. I can flash it back to the original, but I want to see if I can make it work.
I think it's just a matter of picking out the correct modem tar, but I can't find the right one. My phone is a little bit odd, It's a Japanese Galaxy, so not sure if I can find it here. Unfortunately my Japanese is not good enough to go scouring the japanese forums.
Thanks for any help.[/QUOTE]
Sent from my SC-02B using XDA Premium App

Either the phone.apk is bad or the modem is incompatible.
You could try the http://romkitchen.org/ and make an update with different modem only.

If your Samsung Galaxy S displays no network/no signal, or emergency calls only, try the following things:
1. flash the device again with the modem image (download the firmware of your device from samfirmwares.com, delete everything from the .tar file except modem.bin, and then flash this file to the phone with Odin (you can get Odin and instructions from that site too)
2. maybe your nv_data.bin file or /efs directory got corrupted, make a backup of the folder, then simply delete nv_data.bin, it will be recreated for you on Galaxy S.
For this, you’ll need root. If you have a root-enabled kernel, like the Voodoo lagfix kernel, you only have to install the Superuser app and Busybox on the phone, download the Android SDK to your PC, install platform-tools in the SDK manager, go to the platform-tools directory and start adb shell.
In the shell, type su, wait for the Superuser prompt to appear on the phone (if it does not appear, open the Superuser app and try executing su again), enable root access for the command. Now go to /efs, copy everything to for example /sdcard/efs, then rm nv_data.bin.
Reflashing the device with a kernel and checking “phone EFS clear” in Odin also works (make sure you made a backup of the EFS folder just in case).
3. you can try changing the CSC (to XEO for Europe): enter *#272*imei# on the phone tab. Note: this will reset your phone to factory settings, so make sure you did a clockworkmod backup before this. Incorrect CSC setting may cause MMS not working also.
4. check if you inserted the SIM card correctly
Thanks
MertBaBaaa

first check imei no

hello for all members,
i have solution for this problem "not network or not signal" Samsng Galaxy SC-02B Docomo
later write my solution phone work all World
__________
XcachorroX

galaksy s no signal
3. you can try changing the CSC (to XEO for Europe): enter *#272*imei# on the phone tab. Note: this will reset your phone to factory settings, so make sure you did a clockworkmod backup before this. Incorrect CSC setting may cause MMS not working also.
this solution works for me and thanks alot many many thanks

maybe i've got a solution for the no service probleme. i tried this code *2767*3855# and my phone works normal now
i hope it works for you guys

No Network after change of CSC - is there a recovery strategy?
SOLVED
======
Asked around and it goes like this: 2.1 + market = no signal, (2.2 or 2.3) + market = no problem
Solution is UPGRADE from 2.1. to 2.2 or better - I hope this will help anyone else with the same problem.
If you can't do it yourself, any mobile shop will for a small fee.
Symptoms
========
Changed CSC from KSA to XSG with code *#272*HHMM# for 2.1 (no Market in KSA mode)
Galaxy S GT-I9000 now shows blue circle with diagonal in notification area at top of screen.
Settings > Wireless and network > Mobile networks Network mode > Network operators > Search Networks or Select Automatically produces no response - finds no networks.
Dialpad dial a number => "Not registered on network"
Coincidental hardware failure seems very unlikely but not impossible I suppose.
What I would like to know is if there is a recovery strategy from here?
Even if it includes installing a complete new firmware? (and possibility to revert to original if required for warranty)
Device does not respond to "3-finger salute" (volume-home-power).
I am not confident that a warranty is worth all that much in this part of the world. It may be quicker and more effective to do it myself.
Further details of history and phone info below.
I will be very grateful if anyone can help me out
History
=======
Phone purchased in Saudi Arabia (KSA). Worked fine with pre-paid SIM (mobily) voice, data, sms, wifi.
Phone also worked fine with a pre-paid sim (cosmote whatsup) in Greece - voice, data, sms, wifi.
However, since phone was purchased in KSA, Android Market was not installed. Found a Market.apk and installed that. Installs but doesn't actually work.
Found code for changing CSC (*#272*HHMM# for 2.1, *#272*[IMEI No]# for 2.2) 2 colleagues had success and no problems with this with a Tab and 2 Ss, albeit with 2.2. The code looks worth a try on 2.1 so I gave it a go.
Had to remove the side-loaded Market before the code would run and changed the CSC from KSA to XSG.
Market pops up on the screen and works fine.
BUT no network. Network name shows in the Notifications though. The GR SIM shows "(No Service)"
Factory reset, returning CSC to KSA do not help.
The mobily SIM works fine in other phones but no known good SIM works in this phone.
Mobily tech support (in store visit, usually commpetent guy who knows me) is completely flummoxed and asks me if I have a warranty.
So now I have a very compact WiFi only tablet
Phone Info
==========
Model number: GT-I9000
Firmware version: 2.1-update1
Baseband version: I9000JXJG2
Kernel version: 2.6.29 [email protected] #2
Build number: ECLAIR.JPJG8
Personalisatiob(sic) Status
Network Lock
[OFF]
Network Subset Lock
[OFF]
SP Lock
[OFF]
CP Lock
[OFF]
Settings > Wireless and network > Mobile networks Network mode > GSM/WCDMA (auto mode)

Solution to your problem
Hi All,
This happened to me before and I was as frustrated as you and when I was about to give up, I tried one last restoration, but only this time I did it correctly. After that, I restored 5 different versions of Samsung Galaxy S stock ROM back to my Samsung Galaxy S. One of these versions were Chinese, and everything was in Chinese.
Samsung Galaxy S had no signal was because the modem file was missing while you were performing the restoration.
Now, all you have to do is go to this page and follow the instructions to restore the Stock ROM back to your Samsung Galaxy S.

same problems
Hi guys, I have same problem. But a litle diffirent.
When I use 2.3.6 firmware version it's work well no problem. But when I use 4.x.x Rom it says no network and no imei. If I use 4.x.x om pluged the charge my device ,I see gsm company and imei number. It's very interesting. I think , electricty not enough for my device. Maybe Its hardware problems. I 'dont any idea.
How can I solve this problem?
Thanks.

GALAXY S6 DUOS (G920FD)IMEI & MOBILE DATA Problem

Need your help!!!!!!
When I buy that phone S6 Dues (G920FD) default was 5.0.2 and I can use 3G without any problem. After that there is one oTA update and my 3G has gone. After that I have decided to use Stock ROM but no improvement on mobile data. I have to select GSM for both the SIM and 2G is there with slow connection. Whenever I select WCDMA/GSM for any one of the SIM, immediatley it shows "Emergency calls only" and no mobile data. Wired problem but is there any solution for that? Same IMEI shows in *#06# and back side of S6. But in IMEI.info and mobile info app shows invalid IMEI. Dont know what is the problem.

Try flashing stock 5.1.1 ROM via odin specific for your country.
http://www.sammobile.com/firmwares/database/SM-G920F/

roydok said:
Try flashing stock 5.1.1 ROM via odin specific for your country.
http://www.sammobile.com/firmwares/database/SM-G920F/
Click to expand...
Click to collapse
OK. My first stock rom was from Sammobile and the issue was the same on that. Now I am using |ROM|★ARCADIA v1.0★|►5.1.1 XXU2BOFJ◄|JULY.25.15|★ and issue has no improvement.

HELP! "Emergency calls only", but i've tried all

Hello, in december, one day suddenly i was in the car and i was driving through a zone with a low signal, from that moment, my S6, losed the signal, and died (?). Today, are 2 months that i don't have signal. I have also tried different sim cards, but nothing. After i had this problem, i did a factory reset from the phone, i put a different sim card in the phone and it worked, i saw the carrier, and i received the sms with the internet configuration, after 1 minute i lose the signal, after that, again, the phone didn't wanted to receive signal. i also tried with a romanian SIM (i am from Italy), but nothing, i see the R near the signal bars. if i go in settings and i search the network operators, the phone finds all, but i can't connect (the SIMs in another S6 works). my phone originally had a brand ROM (WIND Italy), so first through Odin i re-flashed it, but nothing. i also tried to flash the fw with no-brand, but nothing. I've tried absolutely all, i did reboot, flight mode, factory reset, Odin, changed sim, i don't know what to do. my model it's the SM-G920F, i have the 5.1.1, i never did root or flashed custom ROMs, the IMEI it's okay. if i go in ''SIM card status'', in Signal strength, the signal moves, but in Service state it displays "Out of service". The curious fact is that, before this happens, the phone worked for 6/7 months normal, without network problems, after i started using this operator (WIND), after a few weeks, it started that crazy story. what can i do? :crying::crying:

Check your imei *#06#
and whats your model
and knox is it still 0x0 or 0x1

tazaga said:
Check your imei *#06#
and whats your model
and knox is it still 0x0 or 0x1
Click to expand...
Click to collapse
checking the IMEI in the keypad, it's the same of the box, my model it's the SM-G920F, my Knox counter it's 0x0

alex3105_ said:
checking the IMEI in the keypad, it's the same of the box, my model it's the SM-G920F, my Knox counter it's 0x0
Click to expand...
Click to collapse
All i see is updating to official marshmallow and hope for the best or visite samsung for fix dont root keep your knox alive...i recommand to visite samsung to fix it because if you try something you can loose knox and you may not fix it after all...viste samsung they will fix it

tazaga said:
All i see is updating to official marshmallow and hope for the best or visite samsung for fix dont root keep your knox alive...i recommand to visite samsung to fix it because if you try something you can loose knox and you may not fix it after all...viste samsung they will fix it
Click to expand...
Click to collapse
thanks, should i wait for the italy Marshmallow update or install the other already existing? because here in Italy, Vodafone has released the update, should i install this one, or maybe the UK or another? i am on the no brand fw.

Flash any stock 6.0.1 from Sammobile(it won't change Your knox counter) and if it doesn't work take it to Your carrier seller or samsung service repair center. They both will either fix it for free of give You a new one. Mostly odin reflash fixes all problems.

ProtoDeVNan0 said:
Flash any stock 6.0.1 from Sammobile(it won't change Your knox counter) and if it doesn't work take it to Your carrier seller or samsung service repair center. They both will either fix it for free of give You a new one. Mostly odin reflash fixes all problems.
Click to expand...
Click to collapse
okay, in past, the flashes i did, i just flashed on Odin without doing factory reset (from system or recovery), or deep clean, should i this time? because updating the fw, it updates the modem part, so i think that i don't have to reset it (?), i don't know, also after i did the update, if the network doesn't works, can i downgrade back to 5.1.1 simply flashing again the fw?

Just make sure you are updating the right rom for your model...dont use another rom for another model...this can get you problems after some times...lets say you flashed vod rom on XEF this will give you ptoblems later mybe loosing imei or signal....and if update ota you get updates for VOD not XEF...its just not right...my advice update right rom for you model look sammobile

tazaga said:
Just make sure you are updating the right rom for your model...dont use another rom for another model...this can get you problems after some times...lets say you flashed vod rom on XEF this will give you ptoblems later mybe loosing imei or signal....and if update ota you get updates for VOD not XEF...its just not right...my advice update right rom for you model look sammobile
Click to expand...
Click to collapse
i chose the French unbranded one, i'm waiting the download to finish

alex3105_ said:
i chose the French unbranded one, i'm waiting the download to finish
Click to expand...
Click to collapse
Let us know how it goes...i have the same problem and didnt had any succes with MM XEF .... the phone works only on 2g and cant connect on 3g or 4g

vraciu4you said:
Let us know how it goes...i have the same problem and didnt had any succes with MM XEF .... the phone works only on 2g and cant connect on 3g or 4g
Click to expand...
Click to collapse
sorry man, it's the same, but at least you have 2G network, i don't have any, i can't connect, i have "only emergency calls". now i'm on the XtreStoLite 3.0 MM rom, but it's always the same. i'm so sad, i will use this phone as tablet

alex3105_ said:
sorry man, it's the same, but at least you have 2G network, i don't have any, i can't connect, i have "only emergency calls". now i'm on the XtreStoLite 3.0 MM rom, but it's always the same. i'm so sad, i will use this phone as tablet
Click to expand...
Click to collapse
i think the problem could be the antennas inside...but i guess the fix is to replace the entire motherboard and that is expensive

vraciu4you said:
i think the problem could be the antennas inside...but i guess the fix is to replace the entire motherboard and that is expensive
Click to expand...
Click to collapse
i don't know, but it's really strange, because when i updated to MM, i had signal for 1min, but i rebooted it immediatly thinking "if it works, works even after the reboot", but it doesn't. i'm sorry, i hope you will resolve your problem

920i - no sim/no registered network after marshmallow update

Hi,
This is my first post but, I'm an avid lurker. I am having some issues with my girlfriends 920i. It received an OTA update to marshmallow and ever since it won't read the Sim card. I've tried to flash the official fw through Odin and still having the same problem. Because it doesn't read my Sim card, I have zero access to any mobile network settings.
I am wondering if when they updated the marshmallow, I lost unlock capability.
Also, her imei and sn still match. Most of the problems I see people have are mismatched numbers, and her phone seems fine.
Any help would be greatly appreciated.

So, I checked the firmware that I flashed and it was INS which seems to be the locked version.
I flashed the INU firmware this morning but still not reading my SIM.
I'm out of options at this point, I'm going to go back to lollipop and see how that goes.

Hi,
I am having this issue for my SM G-920I since 2/3 Jan, 2017. I am using fine on US Tmobile network since Oct 2015, but all of a sudden got the no SIM, emergency calls only and continues to stay like this.. I am curious to know if you resolved the issue and how. Thanks for any feedback!

Help me please
I'm having the same issue. Just flashed INS 6.0.1 firmware on my brand new G920I and now i can't get any mobile signal or data. Tried to flash ZTO firmware for my country, but same issue. My phone was fine before flashing INS firmware. IMEI it's fine too. Recovery shows: Applied multi-csc. What can i do? ((((((((((

Kyoo x said:
I'm having the same issue. Just flashed INS 6.0.1 firmware on my brand new G920I and now i can't get any mobile signal or data. Tried to flash ZTO firmware for my country, but same issue. My phone was fine before flashing INS firmware. IMEI it's fine too. Recovery shows: Applied multi-csc. What can i do? ((((((((((
Click to expand...
Click to collapse
Do you also see: " No SIM, Emergency calls only" after rebooting the phone? What's the baseband version ?

upengan78 said:
Do you also see: " No SIM, Emergency calls only" after rebooting the phone? What's the baseband version ?
Click to expand...
Click to collapse
Thank you so much for helping me. Baseband version shows: G920IDVU3EPIF
I see only Emergency Calls Only message

Kyoo x said:
Thank you so much for helping me. Baseband version shows: G920IDVU3EPIF
I see only Emergency Calls Only message
Click to expand...
Click to collapse
Try to connect to Wi-Fi only and once connected, check if there are updates for Software/Firmware.

upengan78 said:
Try to connect to Wi-Fi only and once connected, check if there are updates for Software/Firmware.
Click to expand...
Click to collapse
Already updated and tried to downgrade to 5.1.1, but no sucess. I don't think it's a hw problem, cause it was working before the INS firmware flash, and IMEI number still shows right, no matter what rom i flash (now on MIUI). Can i clean EFS partition and try to flash ZTO firmware again, or i might lost my IMEI and get more problems? Also, wondering if advanced wipe with everything checked on TWRP can help. (data, internal storage, system, sbfs, cache, dalvik cache)

Can you open the phone dialer and enter this code *#*#4636#*#* then clikc Phone Information, and send a screenshot of what you see in the screen (Make sure no IMEI in the screenshot, before you post it here) ? Also check if Radio is OFF or ON.

upengan78 said:
Can you open the phone dialer and enter this code *#*#4636#*#* then clikc Phone Information, and send a screenshot of what you see in the screen (Make sure no IMEI in the screenshot, before you post it here) ? Also check if Radio is OFF or ON.
Click to expand...
Click to collapse
Codes on my dialer doesn't work, but i'm sure the IMEI is right cause it's showing in phone information. Also, radio is on cause when i search for mobile networks the carriers of my country appears on the screen but when i click on then, just appears a message saying that can't connect

Same problem, any solutions?

I had same issue for over a year, you can check details in my thread, resolved by factory warranty motherboard replacement (free of charge, even thou knox was tripped when I bought it, and I told lady in authorised repair shop that i don`t have warranty).
Forgot to mention that I also tried to repair it via Octoplus box, both by me and some other people (wanted a second opinion), DRK fixed, few new certs written, etc.), not only by flashing fw via Odin or Smart Switch.
And I was 99% sure it was hw, turns I was right.
P.S. country dependable: - in some countries they will probably want to sell you a new motherboard in Samsung (happened to me), but in other factory warranty will be accepted (probably, if the phone is not older than 3 yrs I guess)

[Completed] Have signal but not registered on network

I have Samsung Galaxy S3 GT-I9300. When the google drive app was downloading from google play, my phone went off due to poor battery. Later when I tried to turn it ON, it has been getting stuck in the boot. So I decided to reinstall my custom ROM. Being busy with my baby, toddler, household chores and job, I gave it to my brother to flash the ROM. After a while, I noticed that my sim was bricked.
It says "Emergency Calls Only", has fake IMEI but working signal.
We did not backup the efs. I tried searching all the methods like modem installation, CSC, baseband verions, IMEI re-write, Kies Upgrade and Initialization, other people's efs restore, etc. But the problem is unchanged. Some of the followed method might have failed for not having proper knowledge like IMEI re-write tool works on specified chipset, etc.
What we noticed is that using different baseband version toggles from having network signal or no signal.
Kies shows more than four firmware versions and no other details like CSC, etc.
How do I clean up all these especially to have SIM working on my phone?
I appreciate you assistance to be brief and clear to understand steps than sending links. Because my time is stress-fully short.

Hi !
There is some confusing info in your post
What do you mean with it has fake IMEI " ? Have you changed it ?
You say that you have a working SIM on certain basebands , is this happening on a custom rom or stock ?
Have you tried to flash a stock firmware as I see that you tried to flash "your custom rom " ?
Cheers !

First of all, thank you for your response and interest to assist.
My mobile's IMEI is shown as 004999010640000 which is not original. Can you help me to change it to correct IMEI suitable for my Samsung S3 GT-i9300 chipset, if that helps in enabling sim to connect to a network? I think changing method only masks the IMEI?
I have tried flashing stock firmware and also Kies Upgrade and Initialization.
I have also changed baseband version installation on stock ROM too. I don't know which baseband is correct to keep.. for my country India or in the country where my mobile is manufactured, incase that's locking sim accessibility? Some baseband bought signal and detected the network operator name, but the message still says "Emergency Calls Only" and is unable to connect to a network.
I presume this problem arose when installing custom ROM from TWRP recovery and it messed up with efs partition?
I had successfully flashed custom ROM many times before without this problem. I think there's some next step to follow to bring back the working sim like I heard of installing modem. I did just try installing modem but same problem as my baseband is already bringing signal.
I had tested my phone from sim unlock app and found out that CSC is locked and it limited specified MCC and MNC numbers. Is this hindering connection to Indian mobile network? Or corrupt efs? Or missed to manually install something?

Bump.