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[Q] Network problems with I9000 bought in Singapore, using in Canada

Hi everyone,
I bought a Samsung Galaxy S GT-I9000 (16gb) in Singapore and was using it fine on Singtel's network (signed a contract with them). Now I have moved back to Canada and brought my phone with me assuming that all would be ok to use it with the network here. However I'm having big problems with this one network I just signed up with (Virgin Mobile).
85% of the time I cannot connect to it: voice calls and SMSing won't work nor will the data work on it, the only thing it says is "Emergency calls only". Then at other times everything will seem to connect and work fine - I can make calls and use data.
Virgin Mobile will not support me much because they're thinking it's the phone's problem, if I use the phone they gave me (a lower-end model) it works fine.
Here are some details of my phone:
Firmware version
2 2
Baseband version
I9000DXJPA
Kernel version
2 6 32 9
root (at) SE-S604 #1
Build number
FROYO DXJPA
If I check out the status, it usually says this:
Network
Unknown (switches to VIRGIN when it does work)
Mobile network type
UMTS (switches between that and HSDPA and GPRS)
Service state
Out of service
Mobile network state
Disconnected (switches to connected when working, and even when it's not working sometimes)
I have Network mode set to auto mode (GSM/WCDMA). I've tried to switch it to GSM only but that didn't seem to change anything.
I'm wondering if there's some kind of configuration settings I still need to do with the phone? I'm also wondering if it is the network I'm with right now? Virgin Mobile isn't one of the bigger telcom companies here and I'm thinking that if I switch to one of the bigger telcoms, will it work better?
Something else to add - before I signed up with Virgin I was using my phone with a pre-paid service (called Chatr) for voice only and it was working fine.
I'm sure this phone can support the GSM frequencies here.. can't it?
I also still have the Singtel customizations on the phone. Will it help if I remove it?
Any help would be greatly appreciated!
Thanks a lot!
Ryan

sorry, wrong category..

Cant get service

ok guys heres the deal. I got this used captivate of ebay. when i put my att sim card in it i cant get no service. when go to settings>about>status this is what it says :
-Phone number : it shows the number that is used with sim card
-network unknown
-signal strenght -111dBm 1 asu
mobile network type : gprs
- service state-out of service
- roaming-not roaming
-mobile network state - disconnected
IMEI matches
I called att, and they asked for IMEi, phone number and all that, tried to help me somehow, but none of that stuff didnt work, and they said that its probably problem with phone. Does anyone can help me with this ??

Try resetting to default the APN.
Go to Settings/ Wireless and network/ Mobile networks/ Access Point Names/ then Menu button and select Reset to default.
If that doesn't work...what does it show underneath Baseband version ?? If nothin- then flash a modem. If somethin- then flash a different modem.
Hopefully one of these will help ya.
Sent by XDA Premium App

try a factory reset with the sim card in, it should pull apn settings from sim.

flash one of Stock ROMs, they come with AT&T APN preselected.
SauromKK4 "one-click" for example.

nexus s 4g flash to metro pcs texts work but calls dont help !!! please and thank you

ok so heres the problem i can text and receive texts but no calls it calls to verizon if i dial 611 and they say they cant route my call and im always roaming and if i take it off automatic set it to home only i get no signal whatsoever i flashed sprint nexus s 4g to metro pcs so i dont get it any help would me much appreciated
im on jb 4.1.1 codname 3.6.0 rom
heres what my status in settings under about phone says
network : analog b
signal strength : -96dbm 1 asu
mobile network type : CDMA - 1xrtt:7
service state : in service
roaming : roaming
mobile network state : disconnected
my phone number : is in there correct from my current metro phone 978 *** ****
msid : again is also correct from my current metro phone im using
prl version : p:03029 (also tried 3030 and 3031 no luck )
meid : also correct meid i flashed it from my current metro phone
again i dont get why it wont work the signal stays grey and just is roaming and it lets me send texts but no calls now text just stopped working out of nowhere i have no idea whats wrong but i just need help im not a noob so it wont be a hassle to explain anything somebody just please help thank you
feel free to dm me reply or email me [email protected]

You probably flashed that sucker wrong
Sent from my SPH-D710 using XDA

Do you knowbof anyvspexific guide that can help me Ive been searching left and right I dontbgetbwhy I can text but no calls and how do I get it off roaming ? Is rhere an apn or is apn only for mms ?
Sent from my SGH-T999 using xda app-developers app

getting signal with now sim card installed ?

as the title says , am getting a network signal in the status bar with no sim card installed in the device , where it used to show a stop or block sign before when there is no sim installed , don't know when it started but i have noticed it a week ago , and am on the 5.1.1 update ,
what i have tried so far :
1 - reset the device from the setting .
2 - reset the device with samsung smart switch for windows ( which download the latest firmware for the device & install it ) .
3 - installed the factory firmware with odin , and got the device to axiom telecom which is my warranty service provider , and the told me the have changed the whole motherboard , & after telling them the issue is still there , they showed me another s6 with no sim and there is signal and told me that this behavior is normal ( which i don't think so ) .
4 - contacted samsung directly by phone & email , and they told me to reset the device or send it to service ( which i already did ) .
so , is this behavior really normal ? are any of you guys getting this ?
my device : SM-G920F
country : Saudi Arabia

no its not normal
if you type *#06# you gonna find IMEI become 3500000000006/01
if it is then you cant make calls or send sms ( not registered on network )
its the same problem like me i don't know where this come from but we need some one to give us backup the EFS folder. to restore it back to the phone SM-G920F
please if some one can help us thank you

tazaga said:
no its not normal
if you type *#06# you gonna find IMEI become 3500000000006/01
if it is then you cant make calls or send sms ( not registered on network )
its the same problem like me i don't know where this come from but we need some one to give us backup the EFS folder. to restore it back to the phone SM-G920F
please if some one can help us thank you
Click to expand...
Click to collapse
no , it seem we are having different problems ,
*#06# reveals normal IMEI ,
and i can make & receive phone calls & sms if i install a sim card ,
try resetting yours to stock ,
other than showing a signal with no sim card installed the phone is fine & doesn't have any problems .

Speculation- you'd need emergency service call? I would assume that it's allowed to connect to network for that and not have phone disabled?
More speculation- your being spied on...
-Spy
It's only a display icon. You aren't able to still make a regular call without the sim? If it ain't broke don't fix it.
But to ease your mind just check the network status in your settings. Should say what connected to.
Surely it does have to do with the update itself if your phone still functions as normal.
I'm sure there is a network status with the super secret spy codes that you enter on your dial pad. You know the #secretrandomnumber#* codes...
Sent from my SM-G920W8 using XDA Premium 4 mobile app

space_eyes said:
Speculation- you'd need emergency service call? I would assume that it's allowed to connect to network for that and not have phone disabled?
More speculation- your being spied on...
-Spy
It's only a display icon. You aren't able to still make a regular call without the sim? If it ain't broke don't fix it.
But to ease your mind just check the network status in your settings. Should say what connected to.
Surely it does have to do with the update itself if your phone still functions as normal.
I'm sure there is a network status with the super secret spy codes that you enter on your dial pad. You know the #secretrandomnumber#* codes...
Sent from my SM-G920W8 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
it could be there for emergency calls ,
in terms of being spied on , ha ha ,i don't think so , the service center changed the entire motherboard which include the eMMC with it's whole partitions .
the sim card status in the settings says Not Available for everything , and yes i can't make calls nor sms without the sim ,
but you still didn't answer my question : do you get this when you remove your sim ?

no one with a similar problem ??

I've seen it on lots of Samsung phones. It's simply a signal for emergency calls. You have to be able to make emergency calls with or without a Sim and that's telling you how much signal you have.
Seriously people this is pretty simple and no conspiracy.
You only get a circle with a line through if you have a sim card installed that is blocked from the network or the phone is stolen / blocked etc.

Jonathan-H said:
I've seen it on lots of Samsung phones. It's simply a signal for emergency calls. You have to be able to make emergency calls with or without a Sim and that's telling you how much signal you have.
Seriously people this is pretty simple and no conspiracy.
You only get a circle with a line through if you have a sim card installed that is blocked from the network or the phone is stolen / blocked etc.
Click to expand...
Click to collapse
good to hear ,
what made me think it isn't ordinary thing is that the service center didn't know about it & thought it was a problem ,
thanks a lot .

This was done on last update Samsung gods thought we needed to know how much of a signal we had for emergency calls

Having the same problem with my samsung galaxy s6 SM-920F. showing bars on the signals even without sim. not connecting to network operator as well. showing Disconnected status in SIM status from About.
Tried updating the software even downgrading, factory reset and wiping cache but nothing worked.

Found this thread when looking for an answer to this question. In my case, it is a tablet that hasn't even got a sim option but still has the mobile network signal showing, even when airplane mode is switched on. Just worry it is eating some of my battery life. Any ideas?

I am also getting same problem.
There is no sim card inserted in my phone but still it shows the network bars.. Your And my problem is same.

There, an actual answer. Guess I should add it here since I wondered the same thing
a sim card has nothing to do with the transceiver system of the phone. its literally a "passkey" it is your authentication to USE that network. ie you can always SEE the network you just not allowed to "use it" without permission hence the simcard.
Click to expand...
Click to collapse

No Calls, No SMS, No GSM, 2G 3G 4G, just WIFI Connection

I own an GALAXY S7 EDGE AT & T ( G935A )
Yesterday on morning i was talking on phone and after 1 minutes 17 sec phone loses carrier signal and after 2 sec of losing signal the phone reboot automatically then was very slow. I rebooted the phone, and it showed that havent SIGNAL there and instead CARRIER SIGNAL i see the circle with diagonal line there.
I wait some minutes for the signal but again the same, i make some restarts but again the signal doesnt work, just displayed circle with diagonal line. Then i make RESET FACTORY and after configuration was the same again, i update to nougat 7.0 but again was the same error, i downgrade to ANDROID 6.0 but again doesnt work.
The wi-fi works perfectly with no problem, but I can't make a call, send sms, or mms, or use mobile data like 2g 3g 4g lte or gsm.
Any ideas how I can turn the radio on? I've rebooted several times and toggled the Mobile Data button, but that isn't doing anything.
Other details are:
In SIM CARD status:
NETWORK: Unknown
SIGNAL STRENGTH: -113 dBm 0 asu
Mobile Network Type: Unknown
Service State: RADIO OFF
Roaming: Not roaming
Mobile network state: Disconnected
MY PHONE NUMBER : Unknown
On About Phone:
Model number: SAMSUNG-SM-G935A
ANDROID version: 6.0.1
ANDROID SECURITY PATCH : SEPTEMBER 1, 2016
Baseband version: G935AUCS4API2
Kernel version: 3.18.20-8575098 [email protected] #1
Build number: MMB29N.G935AUCS4API2
IMEI INFORMATION IS THERE, SERIAL NUMBER ALSO,
IMS REGISTRATION STATUS : NOT REGISTERED
CAN YOU HELP ME WHAT TO DO PLEASE ? HOW TO FIX THAT ?
THANK YOU

exhani said:
I own an GALAXY S7 EDGE AT & T ( G935A )
Yesterday on morning i was talking on phone and after 1 minutes 17 sec phone loses carrier signal and after 2 sec of losing signal the phone reboot automatically then was very slow. I rebooted the phone, and it showed that havent SIGNAL there and instead CARRIER SIGNAL i see the circle with diagonal line there.
I wait some minutes for the signal but again the same, i make some restarts but again the signal doesnt work, just displayed circle with diagonal line. Then i make RESET FACTORY and after configuration was the same again, i update to nougat 7.0 but again was the same error, i downgrade to ANDROID 6.0 but again doesnt work.
The wi-fi works perfectly with no problem, but I can't make a call, send sms, or mms, or use mobile data like 2g 3g 4g lte or gsm.
Any ideas how I can turn the radio on? I've rebooted several times and toggled the Mobile Data button, but that isn't doing anything.
Other details are:
In SIM CARD status:
NETWORK: Unknown
SIGNAL STRENGTH: -113 dBm 0 asu
Mobile Network Type: Unknown
Service State: RADIO OFF
Roaming: Not roaming
Mobile network state: Disconnected
MY PHONE NUMBER : Unknown
On About Phone:
Model number: SAMSUNG-SM-G935A
ANDROID version: 6.0.1
ANDROID SECURITY PATCH : SEPTEMBER 1, 2016
Baseband version: G935AUCS4API2
Kernel version: 3.18.20-8575098 [email protected] #1
Build number: MMB29N.G935AUCS4API2
IMEI INFORMATION IS THERE, SERIAL NUMBER ALSO,
IMS REGISTRATION STATUS : NOT REGISTERED
CAN YOU HELP ME WHAT TO DO PLEASE ? HOW TO FIX THAT ?
THANK YOU
Click to expand...
Click to collapse
Have you looked in system settings to verify that your network/SIM settings are correct?
Here are some dialer menus for S7 and S7 Edge. You're looking for the menu that let's you check the status of your radio and allows you to turn the radio on/off. See if it will let you turn the radio back on.
http://www.samsungsfour.com/tutorials/all-secret-codes-of-samsung-galaxy-s7-and-galaxy-s7-edge.html
Also, try a different or new SIM.
Are you sure your service wasn't disconnected by your carrier? Have you called support?
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Hello, thank you for your reply!
I have check SIM in another phone and works perfectly, i have test everything possible but again not works.
I send to SAMSUNG SERVICE and they will reply me an answer on Monday.
I moved to GALAXY S8 SM-G950F
Thank you again,
Best regards

try to press *#06# ,if it is no IMEI. there is something wrong in EFS part.

zxxrar said:
try to press *#06# ,if it is no IMEI. there is something wrong in EFS part.
Click to expand...
Click to collapse
If you read their first post, they still have their IMEI number, it is still listed where it is supposed to be in settings.
Checking IMEI would have been my first suggestion also but they have IMEI so I didn't bother mentioning it.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Now im with GALAXY S8
droidriven said:
if you read their first post, they still have their imei number, it is still listed where it is supposed to be in settings.
Checking imei would have been my first suggestion also but they have imei so i didn't bother mentioning it.
i do not provide help in pm, keep it in the threads where everyone can share
Click to expand...
Click to collapse
i am with galaxy s8 now.. Thank you for your reply

Sent from my ASUS_Z00AD using XDA Free mobile app

help! i have a s8+ with "not registered on network"
no calls, no sms, no mobile internet, imei number is still there.
tried rebooting phone, cleaning contacts on sim card, clearing connections in settings, nothing! google is no help at all.
i'm not rooted so i can't use that to help.

HUYI said:
help! i have a s8+ with "not registered on network"
no calls, no sms, no mobile internet, imei number is still there.
tried rebooting phone, cleaning contacts on sim card, clearing connections in settings, nothing! google is no help at all.
i'm not rooted so i can't use that to help.
Click to expand...
Click to collapse
Did this just happen on its own, did it happen after you updated the device?
If you bought the device used and you ran into this issue when you tried to activate it, it might be a device that someone didn't pay the phone bill and the devices blacklisted. If this is the case, there's nothing you can do until/unless the previous owner's existing bill is paid, then the block will be removed.
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