Database Develop

[Q] Mobile network not available..?

Hello, I bought of a friend a Samsung galaxy s and he said it needs only unlocking,so i "think" i unlocked it successfully.Was putting a O2 Simcard in and in applications i was having then the o2 SIM Toolkit.
But when i tried to make an phonecall, he tells me "Mobile Network not available",so i went to settings and wireless and network and tried to choose an network operator but he tells me then " Unable to connect to this network at this time.Please try again later."
What can I do?

Did you check the APNs?

Please first check if your IMEI is intact. If it is, flash a different MODEM and see if it works. If it's not, flash a fresh ROM using ODIN and that should hopefully restore your efs.

At first thanks for the reply, but now what is a APN? And how do i know if my IMEI is intact?
Sry,am a newbie

For you IMEI you should check your original SGS Box's sticker. There should be you IMEI number printed on. If you dial *#06# you should be able to read your IMEI. --> Look if it is the same as on your box
for apn settings. Apn is your connection settings, how your phone connects with the providers network. you have to check your mobile network settings if these are correct.

So, the IMEI nr is different then on the sticker,and the apn wasnt ticked,so I ticked the O2 and tried but still no mobile network.
Then i need to flash if I'm right?
I was already looking a bit around here about roms etc. But there are quite a few out there,so when you say to flash a fresh rom,which actually do I need to use?
Thank you

Hi again,
because the imei wasn't the same, I flashed it with a new rom (actually two different ones)
But still after both flashes I still don't got my old imei and still no mobile network available. After the one flash with I9000XXJPU he didn't said anymore no mobile network available,instead he said no data network available.
It would be nice if somebody would have some advice or help.
Thanks

hey! don't panic, i have had the the same problem
just download darky's resurrection edition in the development section and flash it. it should bring you back to froyo 2.2.1 and should also restore your imei properly. after this procedure you are free to flash any rom you want

dasickzz said:
Hi again,
because the imei wasn't the same, I flashed it with a new rom (actually two different ones)
But still after both flashes I still don't got my old imei and still no mobile network available. After the one flash with I9000XXJPU he didn't said anymore no mobile network available,instead he said no data network available.
It would be nice if somebody would have some advice or help.
Thanks
Click to expand...
Click to collapse
Flash back to 2.2.1
Check imei
Continue on..
Also the problem you had when flashed JPU sounds like you didnt have your APNs correct..thats why the "no data network available"
Sent from my GT-I9000 using Tapatalk

For apn settings check your provider website, our phone them and they will help you set it up
Insanity cm 014/glitch

Hey, I'm having exactly the same problem although the imei number for me is correct.... What can I do?? I googled this problem for hours and without any solution found.... Thanks for any help out here!

Sorry I don't mean to spam but I really need help with this! Thanks

hey, check this, seems to be solved
http://forum.gsmhosting.com/vbb/f453/samsung-i9000-after-unlock-no-network-1168675/

automatic search network...n pjt phone on Utomode for selectkon network
Sent from my GT-I9000 using XDA App

No Network
Hi!
I have the same problem.
Network is fine (i switched the SIM-Card into different phones), but my SGS GT I-9000 does not connect / find to any network.
I am running Darky`s ROM 4.0.4 v11.0 Black Edition with 3.0.17-Semaphore_ICS_1.2.5s.
Also, the phone says on screen the name of my network provider (COSMOTE), but no signal.
What now?

[Q] I screwed up (almost no more data)

Hi,
I don't really know what I did, but I can't get any data connection anymore.
The phone was really slow to get data, when It gets it.
It tried to put back a modified nv_data.bin
I have the 3G/H icon, but it stay grey.
I've tried to reflash stock (with clear efs) try to reflash CM7, try to change modem, tried to restore my nv_data.bin which I backed up.
I've tried to "restore original settings" from network menu.
Under stock I've tried to modify the CSC (with the secret menu). I've tried to put a modified nv_data.bin
Nothing work. I don't know what to do know
The icon stay grey, and sometimes I can load a web page (but awfully slow), sometimes nothing work.
Any advices ?
Many thanks in advance.

Have you checked your apn settings?
GTi9000 insanitycm010/insaneglitch

Hi. Yes i've checked APN. For now it's working. But when i reboot, it take at least 2 min to hang up to the network, i mean activate the data.
Could it be my operator blacklisting me or something due to nv_data change?
Sent from my GT-I9000 using Tapatalk

Try to flashing stock rom with .pit for new partition some case it will restore your nv_data.bin if there is still alive in system and didnt corrupted
Sent from my GT-I9000 using Tapatalk

Thanks.
I'll try that again (already flashed stock JPU with .pit and "Clear EFS" checked)
For now it's kinda working. But sometimes i suddenly have no network throughoutput (but icons stay green)
I'll check that

Hi.
I've tried going back to stock and everyhting.
Data comes but it really slow to acquire network.
Is there anything else I can do ?

Alouch47 said:
Hi.
I've tried going back to stock and everyhting.
Data comes but it really slow to acquire network.
Is there anything else I can do ?
Click to expand...
Click to collapse
Have you tried contacting your provider to see if they have any problems?
Insanity cm 012/glitch

[Q] No mobile signal after CM9 + modem, but can see networks

I flashed the latest CM9 nightly two days ago, and everything seems to work great other than that I have no mobile signal. I am an Australian Optus user, and I tried it both with the modem that came with CM9 and with the one I believe is for my country, which is XXJQ3 by flashing that.
In both situations, I can scan for networks and see all three carriers just fine, but it shows no signal, just an "x" in the middle of the signal triangle, nor does it show which carrier it is connected to. I cannot make emergency calls because it says no mobile network is available.
Is this a modem baseband/firmware problem ? I am guessing not, because I would think that if it can physically see the networks, then the modem must be working right ? But if so, why can it not connect to anything ? The modem firmware I am using is for ICS and I believe it is the correcto one for my region, and I have enabled everything in the modem settings but still it will not connect to any network. Why ?

pawz said:
I flashed the latest CM9 nightly two days ago, and everything seems to work great other than that I have no mobile signal. I am an Australian Optus user, and I tried it both with the modem that came with CM9 and with the one I believe is for my country, which is XXJQ3 by flashing that.
In both situations, I can scan for networks and see all three carriers just fine, but it shows no signal, just an "x" in the middle of the signal triangle, nor does it show which carrier it is connected to. I cannot make emergency calls because it says no mobile network is available.
Is this a modem baseband/firmware problem ? I am guessing not, because I would think that if it can physically see the networks, then the modem must be working right ? But if so, why can it not connect to anything ? The modem firmware I am using is for ICS and I believe it is the correcto one for my region, and I have enabled everything in the modem settings but still it will not connect to any network. Why ?
Click to expand...
Click to collapse
did you have try replace/update the modem radios from this? http://wiki.cyanogenmod.com/wiki/Samsung_Galaxy_Tab_(GSM):_Support_Downloads
you can try a different modem, It doesn’t matter if you prefer another modem, you can flash another modem, you can try flash any modem file you want, it's will not brick your tab
If you had, but still not working, then go to dialer, put this code *#*#4636#*#*, pick tablet information, try turn of the radio then turn on again and try to fix permission on cwm too.
good luck.

qm4n76 said:
did you have try replace/update the modem radios from this?
(url redacted)
you can try a different modem, It doesn’t matter if you prefer another modem, you can flash another modem, you can try flash any modem file you want, it's will not brick your tab
If you had, but still not working, then go to dialer, put this code *#*#4636#*#*, pick tablet information, try turn of the radio then turn on again and try to fix permission on cwm too.
good luck.
Click to expand...
Click to collapse
Thanks. Tried all your suggestions. Yes, that is where I obtained my XXJQ3 modem, which I flashed via CWM. I tried your other tip of turning the radio off and on again and then fixing permissions in CWM but to no avail. Still no mobile signal.
Is it correct to assume that if the device can scan for networks and see networks, then the modem is working ? The information screen you directed me to says "emergency calls only", but I cannot actually make an emergency call because it says "mobile network not available", so even though it can "see" three networks, it cannot connect to any of them to either get a signal or make emergency calls.
What does this mean ? Surely it has the right frequencies set otherwise it wouldn't see the networks at all, right ? Is this a CM9 bug in the nightly I flashed or something ? Wondering where to look. I get the feeling the modem is working fine and that something else is wrong.

I use the jlv modem from the vibrant phone.
But jpz modem is also OK for optus.
Why not do Android backup for safe keep, then restock using gb stock safe from overcome guide, and flash jpz modem to try.
If it is the same, then it is hardware related.
Sent from my GT-P1000 using XDA

Oh my god. The reason it didn't work work is so stupid I had to headdesk when I realised. The SIM I was using was old and had been disabled. The reason I didn't think it mattered, is that in Gingerbread, it would still register and show reception bars and I could make emergency calls with the old SIM, or indeed even without a SIM in the device at all. But in ICS, none of that was the case, and it would not register and not let me make emergency calls without a valid SIM.
I guess I was just making a stupid assumption that SIM-less emergency calls that worked in GB would also work in ICS. Stupid me.

Everyone can make mistakes or forget something, but you should thank all the users who give you answers.
Sent from my GT-P1000 using XDA

[Q] Unlocked Captivate Mobile Network Not Available, No Bars, No Data

I have an unlocked Captivate SGH-i897 running Jelly Bean (Slim Bean). I am trying to use it with a T-Mobile Sim card. I cannot connect to data in any form (wifi is fine), texts come in and go out but take a very long time (about an hour), and calls do not work (with the exception of one time one went through), saying "Mobile Network Not Available." I never appear to have any bars even though I am in a major city (Boston).
Data and data roaming are enabled. Airplane mode is not on. I have removed the battery and reseated the Sim card. I have tried every APN under the sun and soft reseted.
I have read about other people experiencing the same problem on these forums and elsewhere, but I have yet to find a solution that meets my needs. Thank you for your time.

Baroness said:
I have an unlocked Captivate SGH-i897 running Jelly Bean (Slim Bean). I am trying to use it with a T-Mobile Sim card. I cannot connect to data in any form (wifi is fine), texts come in and go out but take a very long time (about an hour), and calls do not work (with the exception of one time one went through), saying "Mobile Network Not Available." I never appear to have any bars even though I am in a major city (Boston).
Data and data roaming are enabled. Airplane mode is not on. I have removed the battery and reseated the Sim card. I have tried every APN under the sun and soft reseted.
I have read about other people experiencing the same problem on these forums and elsewhere, but I have yet to find a solution that meets my needs. Thank you for your time.
Click to expand...
Click to collapse
you probably have the same error as me, you might have forgotten to backup your eff folder, return to stock, bacuk those folders, flash again slim bean and then push the folder files, that way you will repair the network

Baroness said:
I have an unlocked Captivate SGH-i897 running Jelly Bean (Slim Bean). I am trying to use it with a T-Mobile Sim card. I cannot connect to data in any form (wifi is fine), texts come in and go out but take a very long time (about an hour), and calls do not work (with the exception of one time one went through), saying "Mobile Network Not Available." I never appear to have any bars even though I am in a major city (Boston).
Data and data roaming are enabled. Airplane mode is not on. I have removed the battery and reseated the Sim card. I have tried every APN under the sun and soft reseted.
I have read about other people experiencing the same problem on these forums and elsewhere, but I have yet to find a solution that meets my needs. Thank you for your time.
Click to expand...
Click to collapse
As stated above your efs folder could have been deleted in the flash which is common. Easiest way to figure out if its gone is to check your imei in settings to the one under your battery. If they match you're good. If they dont you'll have to restore your efs folder. If you didn't back it up manually you'll probably have to flash back to stock. But before you go through that check your internal SD card for a folder simply labeled backup. If you have that folder look and see if you don't have a copy of your efs in it. Some ROMs actually create a backup during the flash.
If your efs is intact and you're imei matches then the only other thing I can think of is to check to make sure you have a modem installed. Or look into flashing a different modem.
Sent from my SGH-I897 using xda app-developers app

m1batt1 said:
As stated above your efs folder could have been deleted in the flash which is common. Easiest way to figure out if its gone is to check your imei in settings to the one under your battery. If they match you're good. If they dont you'll have to restore your efs folder. If you didn't back it up manually you'll probably have to flash back to stock. But before you go through that check your internal SD card for a folder simply labeled backup. If you have that folder look and see if you don't have a copy of your efs in it. Some ROMs actually create a backup during the flash.
If your efs is intact and you're imei matches then the only other thing I can think of is to check to make sure you have a modem installed. Or look into flashing a different modem.
Sent from my SGH-I897 using xda app-developers app
Click to expand...
Click to collapse
I have to admit I am new to Android and am used to doing everything by following strict sets of instructions. I have a backup on my SD card; how do I restore it, or rather, where do I restore it to? Thanks again.

Baroness said:
I have to admit I am new to Android and am used to doing everything by following strict sets of instructions. I have a backup on my SD card; how do I restore it, or rather, where do I restore it to? Thanks again.
Click to expand...
Click to collapse
There are several apps available in the play store but the only one I've used is nitrality. It should copy it where it is supposed to go which is /efs.
Sent from my SGH-I897 using xda app-developers app

m1batt1 said:
If your efs is intact and you're imei matches then the only other thing I can think of is to check to make sure you have a modem installed. Or look into flashing a different modem.
Click to expand...
Click to collapse
I'm having the same problem. I checked my "about phone", and I don't see the imei value. But it is on the root in efs. The value matches the one on the back of the phone, and so does the one in sdcard/backup/efs.
So, how would I getting a new radio/modem?

johnd.the.cuban said:
I'm having the same problem. I checked my "about phone", and I don't see the imei value. But it is on the root in efs. The value matches the one on the back of the phone, and so does the one in sdcard/backup/efs.
So, how would I getting a new radio/modem?
Click to expand...
Click to collapse
dial *#06# - it will show you your active IMEI.
- DC

Anyone get this working? I made two backups: 1 copying the files and the other with nitrality. Neither worked and I have not been able to access the mobile network with my I897.

I had the same issue (or similar).
In my case I was not able to hold signal for more than a few seconds on 850 MHz, which is the frequency of my main carrier, however, my secondary carrier which uses 1900 MHz band, worked flawlessly.
I fixed it by installing a different modem.
KC1 seems to work great.
Sent from my SGH-I897 using xda app-developers app

how i installing a different modem.???

JASG514 said:
how i installing a different modem.???
Click to expand...
Click to collapse
Simply by flashing it in recovery.
Sent from my SGH-I747 using xda app-developers app

Weird problem with modems: "Unknown" baseband, IMEI, etc.

Hi!
Resume:
My note has some weird problem with the modems. I'm getting "Unknown" baseband, modem verison, phone number, IMEI etc. with all the modems I tried except one, which shows the correct IMEI and modem version but still not working(I can even see the mobile networks with that one, but I it doesn't connect and gives me "Refresing SIM data" messages).
Click to expand...
Click to collapse
I always have been using custom roms(only TW) and updating my note to the latest version and I never had a problem.
One day, some months after the last rom update, started to lose the phone network conection and I was getting pop-ups with "Refreshing SIM data"(was very annoying because that was turning on the phone screen every few minutes). Sometimes I had phone network and sometimes I hadn't. The disconnections became more frequently. The phone also started to eat up the free space for apps, so I had to remove several apps to install or update even a small one.
So I decided to change to a different ROM to see if that fixes both problems, but I got the actual problem.
I was in AllianceRom v3 JB when that happened.
I flashed this AryaMod 5.5 JB following their instructions and I got this weird problem. In the "About phone" says that the Baseband version, IMEI, IMEI SV, Network and My phone number are "Unknown". I can't even search for mobile networks because it says "Insert SIM card" when I try to open the Mobile networks menu. Tehre are no signal bars, only a "denied" icon on the status bar.
I tested all JB modems and some from ICS from the "all modems" thread, but I was getting the same "Unknown" things in each one, except the XXLSO, where the Baseband version, IMEI and IMEI SV were okey. I could also find mobile networks with this modem, and the "Refreshing SIM data" thing returned, but it was not possible to connect to a network. With this one, there aresignal bars, but they are empty.
I flashed the AllianceRom and even the old ICS rom I had before, but the problem persisted, even with the modems they came with.
Now I'm on the latest Samsung rom(LT4), unmodified and flashed with odin and the problem persist.
I found this old thread. His initial problem is very similar to mine, but they don't know what caused it nor how to fix it.
I have also found something about corruped IMEIs that you can fix doing something with the ADB and restoring EFS folder, but I think that is not my case because I can see my original IMEI with the XXLSO modem (and I my EFS folder looks OK, anyway I have no backup of that).
I don't expect to get a step-by-step tutorial about how to fix this, but I hope somebody can put me in the right direction. I will post the solution if I find one!

What are the first 4 digits of your imei
Sent from my Nexus 5 using Tapatalk

Thanks for reading, the four first digits are 3595.

Maybe this is a stupid question, but have you tried re-seating your Sim card, or even a different Sim?
Sent from my Nexus 5 using Tapatalk

I tried both. Also I have been using the SIM with another phone for weeks and works fine. Tried to take out the battery and wait few minutes and other "stupid" things like re-flash a ROM, re-wipe all, etc..
Maybe it's the programed obsolescence, you can use the Note as PDA but if you want a phone, go and buy another...

@ThaiDai or @nokiamodeln91 I believe knows of a way to fix this if its an EFS issue...but you don't have a developer imei
Did you have an old efs backup from when u first rooted your phone?
Sent from my Nexus 5 using Tapatalk

AndroidSlave said:
@ThaiDai or @nokiamodeln91 I believe knows of a way to fix this if its an EFS issue...but you don't have a developer imei
Did you have an old efs backup from when u first rooted your phone?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
If it was a corrupted IMEI issue then it should not come back when the xxlso modem is flashed.. And also not sure why it goes to unknown when any other modem is used.. Could there be any physical damage to the sim tray? Dropped the phone?

I have no backup of efs... I had one "nandroid" but deleted it after everything was okey...
I could delete the efs folder, so this unknown problem will turn a known one :victory:
I dropped the phone a very few times, maybe in one of those something broke a little and has increased more with the usage? (the disconnections from the network became spontaneus and progressively).
I found this other thread, I could try the same but I can't find the original GB firmware, every link I find is in hotfile.

Check in Samsung-updates.com firmware section. There are 2 GB roms there..

I found a efs backup from may 2012, probably auto-created when first installed ICS.
I flashed the stock GB rom and restored it following this tutorial for my .tar.gz file, but didn't work, so the device may be lost. I only have 3 more backups: boot.img, data.ext4.tar and system.ext4.tar. I guess they are useless to fix this...
Thay you for you support!