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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.

[PATCH] Patch CDMA to GSM for Android Global Phones

This is a patch to fully enable the GSM on CDMA Global phones.
The Global Phones are phones with CDMA and GSM modems but that are usually configured to primarly work on CDMA network and at least to be able to call on GSM network.
The patch is working on every Stock Rom, on every AOSP Rom and on every Android version.
If you are successfully using this patch please comment the thread with your phone model.
This patch will enable:
- GSM/UMTS -> [GSM auto (PRL)] in Testing menù
- SMS
- MMS
- 3G Data
- USSD Code
- Call Forwarding
- Testing menù to manage the baseband accessible dialing the code *#*#4636#*#* (locked on Verizon Phones)
How to install:
- Copy the .zip file to the external memory or memory card
- Reboot your phone and enter on your custom recovery
- From the Install menu select the .zip file and instal withotut signature verification on your Rom
Risk of briking:
- no one: during installation the installer checks everything is ok and stop installation in case of problem; in case of problems after installation the old settings can be restored by simply installing the patch a second time. In this way you can test the gsm settings without any risk.
Advice post-installation:
- If the patch has not been installed on a clean system then you have to do a factory reset
- On the AOSP Roms the Patch is persistent, when you will update your rom you do not have to reinstall the patch
- *#*#4636#*#* -> Phone info -> Set prefered network type -> GSM auto (PRL)
How to uninstall:
- To uninstall the patch you have to reinstall it a second time from the custom recovery
The patch should work on every CDMA Global Phone.
The patch should work on every Rom.
Download the patch here
If someone successfully use this patch on some other model please leave a comment in this page, so I will be able to update the above list.
If someone has edited this patch to support some other phone please inform me so as not to waste information and in this way I can update the patch.
Any help is precious.
HOW TO POST REQUEST FOR HELP:
You have to entirely read this thread, I do NOT answer redundant question.
If you want to know if the patch is compatible with a phone then you have to attach the /system/build.prop in your post in this thread because i don't know all phones. (You can also send me the build.prop as attachment via the contact section of my site.)
If you installed the patch and there are problems you have to attach (and do not post) your /system/build.prop and your /system/build.prop.bak.
I do not answer to requests for help in private, I have neither the time nor the interest in doing so.
Any doubts, questions or requests must be posted in this thread in order to answer a single time and help everyone.
XDA:DevDB Information
Patch CDMA to GSM for Android Global Phones, Tool/Utility for the Android General
Contributors
Mentor.37
Version Information
Status: Stable
Current Stable Version: 4.2.7
Stable Release Date: 2016-04-25
Created 2014-12-04
Last Updated 2016-04-25

The patch has been updated.

The patch has been update.
Everyone can help me to extend support for more phones.
Thanks.

Patch updated for better GSM support.

works flawless on my Razr xt912 in Pakistan using Gsm network.
Thanks a lot man.:good:

Available a new update to solve problems with apns on 4.3.x roms.

It works on my Droid razr Maxx xt912 with CM10.2-20131020-NIGHTLY-spyder ROM, my phone is using GSM carrier

New version working well on Vodafone Ireland with cyanogenmod 10.1.3 on XT912.
This version also leaves the ROM version intact - older version for 10.1.2 seemed to update the string.

The version that changed the string was only for the xt894 with cm 10.1.2, that was the first version.

Works great on my XT912 with MIUI v5. Thanks.

Mentor.37 said:
This is a patch to fully enable GSM on every Stock Rom, on every AOSP Rom and on every Android version.
This in not for US users, in US the GSM is locked in RIL.
Release 1.6 - 20/10/2013
Click to expand...
Click to collapse
I may have misinterpreted the topic I guess, but did install this while I was overseas with my Verizon phone, everything was fine but now it seems as I am unable to find 3G network back in the US. I have changed the specs from GMS/CDMA , etc on the settings but no signal of 3G/LTE.
Anyone has had this issue before? Any way to turn it back to normal so that I can get data here in the US?

blustosa said:
I may have misinterpreted the topic I guess, but did install this while I was overseas with my Verizon phone, everything was fine but now it seems as I am unable to find 3G network back in the US. I have changed the specs from GMS/CDMA , etc on the settings but no signal of 3G/LTE.
Anyone has had this issue before? Any way to turn it back to normal so that I can get data here in the US?
Click to expand...
Click to collapse
In US you can not use the GSM on many Verizon phones, you have to use the CDMA and you have to restore build.props and apns list.

The patch has been successfully tested on droid bionic xt875 in and outside the US and on droid 3 xt862.

Mentor.37 said:
The patch has been successfully tested on droid bionic xt875 in and outside the US and on droid 3 xt862.
Click to expand...
Click to collapse
Mentor.37 said:
I need your build.prop.
Click to expand...
Click to collapse
Mentor I have a question.
I flashed on XT912-Spyder CM 10.1.3 but even before I did flash I would have no service at all , I have Euorpean sim card which has active roaming.
When I put it into iPhone 4S it shows T-Mobile USA but in settings T-Mobile.Poland settings so it roams, it gets signal,receivies texts.
IN XT912 it only shows phone number in settings that is all , i flashed your patch.. I will do it again maybe it will help I don't know.
Can you help me? if I get sim to work I will have my buddy replace screen,battery everything and put this phone into use for someone.

You could try installing the patch on clean system before first boot without restore any backup.
Let's me know.

Mentor.37 said:
You could try installing the patch on clean system before first boot without restore any backup.
Let's me know.
Click to expand...
Click to collapse
EDIT:
Same thing I just did what you told me it instantly showed the European phone number Poland area code +48.
Signal Strength : 0 dBm 99asu
I can't understand how when I put it in Verizon 4S which was Unlocked by VZW it shows signal,receives texts etc.. the droid razr after JB update was suppsed to be unlocked for European use for example.
It even synced local time in Poland which is +6 hours! it seems to pull up number and time but no signal
Is there anything else I can try?

In your recovery: factory reset, wipes, install patch and then reboot phone.

Mentor.37 said:
In your recovery: factory reset, wipes, install patch and then reboot phone.
Click to expand...
Click to collapse
Yep did that and still no ago same thing.
Before I got the phone (Got it for free)
when I first put AT&T simcard it showed me roaming triangle for few seconds ever since that time the signal just does not work.. at all.

The xt 912 is GSM locked in the US and could be locked for AT&T sim outside US too, you could try with another sim.

Mentor.37 said:
The xt 912 is GSM locked in the US and could be locked for AT&T sim outside US too, you could try with another sim.
Click to expand...
Click to collapse
Well yes I know so why when I put in T-Mobile Poland sim card which roams on T-Mobile USA it shows nothing but only phone number? it's weird.
Works fine in 4S unlocked by Verizon.

[Q] This device in germany

Dear all,
i got this phone from a friend (S3 from Verizon, SCH -I535) but I'm leaving in Germany, i thougt it would be enough to Flash a custom Rom to get rid of the sim lock but it Looks like that there are morre technical issues that i know :crying:
So what i find out is that it uses CDMA 1x/EVDO Rev A. instead of GSM/UMTS and that the LTE band is ankother one.
On the other Hand i read about the jellywiz gsm Rom for that device, the outcome is that i'm very confused right now.
My question, is there a Software based way (custo Rom, kernel, modem etc) to make this device working in Germany with a german carrier sim Card?
thnx in advanced

Update the phone to the latest update and you can use it without having to root it

and it will work in Germany using german sim on gsm/umts and LTE??
(S3 from Verizon, SCH -I535)

djteotancolis said:
Update the phone to the latest update and you can use it without having to root it
Click to expand...
Click to collapse
I checked and there is the latest Software installed, still not reading german sim and i worte that is not so easy or impossible to make it working in Germany with gsm/umts, any help??

osdgap said:
I checked and there is the latest Software installed, still not reading german sim and i worte that is not so easy or impossible to make it working in Germany with gsm/umts, any help??
Click to expand...
Click to collapse
1: Are you on the MF1 update?
2: If yes, go to Network mode and select GSM
3: wait for a couple of mins
4: go the APN setting and enter all your APN details.
You should be set

sch-i535 telus canada sim card wont see network

version 4.1.2 rooted
apn settings set
sim card inserted nothing works non verizion sim, wont connect to a network for calls or to register the phone number etc etc.
how can i get this to work ?

SNWR34P3R said:
version 4.1.2 rooted
apn settings set
sim card inserted nothing works non verizion sim, wont connect to a network for calls or to register the phone number etc etc.
how can i get this to work ?
Click to expand...
Click to collapse
I have the same problem

GoDfRaG said:
I have the same problem
Click to expand...
Click to collapse
i went back to 4.0.4 then used odin and upgraded back to 4.1.2 reset wiped phone rebooted completly stock all root and custom recovery gone. used verizon software and went from mb1 to NE1 updated software now its at stock 4.4.2
i can insert a old rogers canada sim it sees network right away and shows up in APN
insert a new activated telus sim and it does not show anything except for the sim from unknown provider or non verizon sim crap but i know how to remove the system app for that notice does not change a thing.
i have used" phone info" and tried the different bands global, lte/cdma, gsm i have tried in service modes and dial pad codes (have not done *228 on 4g lte phones so its not a fried sim card) best i get with telus sim in and set in gsm mode is the can rogers network show up. nothing in the other modes.
i have manual tried the APN setting in phone and apn manager no change
i show a imei number however it is different from the original on the back sticker but the phone has no issues with the rogers sim card and the current phones imei so it changed at some point prob from a previous custom ROM but it is working to see a network just not activated on rogers
so now i have a unlocked bootloader, stock 4.4.2 clean phone 100% stock Verizon software i have read everything i can seem to dig up and still will not work

need urgent help note 4 sprint network issue

hey guys sorry to spam if this is being posted in incorrect section.
I live in UAE. I bought used american note 4 sm-n910p unlocked network. the person who sold me this phone already had it unlocked to use GSM sim. UAE sim used to work perfectly untill i flashed lineage rom to it. lineageos is awesome i loved it everything works fine but cannot get any sim to work in lineage. it always says no service. i tried dialing *#*#4636#*#* and changed to gsm only but that was resetting as soon as i reboot so i modified build.prop ro.radio.networkmode=3 to unable GSM on boot but that shows my network name and emergency calls only. i restored my previous backup rom in which GSM sim used to work but now after restoring sim doesn't work in backedup rom too and *#*#4636#*#* is not working in my backup rom :crying:
and if i reinstalling lineageos rom *#*#4636*#*# is not taking any effects
i flashed stock sm-n910p rom from sammobile that locked the network and shows "Hands Free Activation" so i reinstalled my backup rom. in this rom network bar shows but network always shows (searching)
Please Help:crying::crying:
BTW i cam across octoplus on youtube but soon realised it needs dongle or octoplus box to unlock sim. and saw some hacked videos it says octoplus can work without any box or dongle. Is This True or just haox to download their trojan virus?