No Signal On Unlocked Samsung Captivate - Captivate Q&A, Help & Troubleshooting

Hello guys,
I unlocked my Samsung Captivate by using the Galaxy S Unlock app from Helroz, but when I insert my T-mobile sim card, there is no signal. If I try to dial a number it says "Data network not available". One time after I rebooted it it had signal for about a minute and then the signal was lost. I used this sim card in another phone and have gotten at least 3 bars.
So if anyone knows what's wrong, PLEASE reply !!! (I spent hours looking for an answer but no luck)
Thank You

i had that issue, just reset the phone from settings>privacy
solves it.. (also make sure ur sim is in the right way )

Related

[Q] SIM card reading problem

My i9000m on the Bell mobility network is not picking up data after an overnight charge with the phone turned on. Today - nothing. I do have phone use and I can access data on WiFi.
I am running stock ROM. I unlocked the phone using a Rogers SIM card, about a week ago, but went back to the Bell network immediately after with no problem. After unlocking I got the Kies to work and updated to UGJH2. Since then, the network access has been spotty but I've switching to WiFi then switching back and it's coming back. I purchased this phone with a different Bell SIM2 then put my old Bell SIM1 (from an Omnia2) in this device.
*#7465625# shows Personalizatiob Status
network lock [OFF]; Network sublock[OFF]; SP lock [OFF]; CP lock [OFF]
What I've tried
1) Switching to WiFi and back - no data
2) Putting SIM1 back into the Omnia 2 - O2 booted up and accessed the Bell network including data. CONCLUSION - The problem is not the SIM card.
3) Putting the SIM2 into the i9000m - no network access at all; not even phone. This SIM2 is working in the O2 and originally worked in the i9000m. Much to my surprise when I put SIM1 back in the SGS it still picks up the Bell network.
4) Squeezed the SIM holder blew out with compressed air in case it's just a physical problem with the SIM being held tight enough - SIM1 still not picking up data.
So it would seem that there is a problem with my SGS reading SIMs other than the one in use when whatever happened happened. Any suggestions on how to get other SIMs, even from the same network, to work? If I have to submit my phone to Bell I need to re-lock it. How do I do that?
Thanks for the help.
--- update---
relocked the phone using *7465625*638*# then 302610 and my unlock code. Power off / on still no data access. Now *#7465625# shows Personalizatiob Status - network lock [ON]; Network sublock[OFF]; SP lock [OFF]; CP lock [OFF]
first try this
http://forum.xda-developers.com/showthread.php?t=789039&highlight=*#0011#
does it show which band it is using for data?
you can also try this
http://forum.xda-developers.com/showpost.php?p=8124344&postcount=45
install the APN on off
then flip it on / off and back to on
see if that helps
Thanks for the response.
I did the #*0011* It's flipping between the 850 on 5 and 1900 on 2 The DL and UL numbers are slightly different. I did have to reconnect to the APN.
How would this affect installing *other* Bell SIMS? That's what worries me the most - that it wouldn't read another Bell SIM that works in another phone.
the only time i see this happen is if you swap the SIM card when the phone is ON
if you turn off the phone, change between SIM1 and SIM2, then turn it back on, you should not see that problem
I know because i was playing around with multiple SIMs when we were researching the Unlock methods for this phone
I take out the battery before I change the SIM. I have to for the Omnia 2 so I just got in the habit. This is sounding worse and worse
although I was rushing off to work so maybe I didn't - hope springs eternal.
----resolution ---
sometimes you just have to call Bell, wade thru the 1st level support and get to someone who knows what's up. Apparently my phone plan changed today (I didn't know it was post dated) and the data feature was not provisioned even though it's a plan that includes data. The guy invoked the feature and poof - data. yay. AllGamer, thanks for your help.
you'r welcome
I did have the same problem, using 2 numbers from 2 telcos, both sims work fine on my iphone but I9000 fail to recognize 1 of these 2, no matter how I tried, I actually did all crazy things like insert couple paper layers between the sim and the sim slot to create additional pressure on the sim contact circuit.
Suck thing about this is non-recognizable sim has data plan with it, which I want to use on I900, finally I asked the carrier to issue a new sim and all thing work fine. It's a new sim type anyway. You may want to try this if all other means doesn't work.
The fix is easy I use to have a moto milestone and when this happened a simple reboot fixed the data connection.
Sent from my GT-I9000M using XDA App

[Q] Please help! Sprint One sim unlock, Always No service and won't auto reconnect

For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Sim Unlock
lazybozz said:
For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Click to expand...
Click to collapse
How did you get the SIM unlocked in the first place?
lazybozz said:
For the last weeks.. I have been trying to get this phone working with T-Mobile..I had unlock the sim card and now running badboyz 4.3 rom. 1.3
After unlocking the sim card and setting up the apn, selected T-Mobile from the available networks and it will connect. But when I go to work, I will lose signal every few block, and need to search for available network again and wait to select t mobile again.
I had try to use the t mobile sim card on my old phone and everything will works fine with no signal lost.
Can anyone please HELP!... I been searching and looking for an answer for more than 2 weeks..but no resolve.....
Thanks
Click to expand...
Click to collapse
This is probably because T-mob covers only particular places the frequencies this phone uses http://theunlockr.com/2013/07/05/htc-one-sprint-specs/ vs t-mob https://t-mobile.jive-mobile.com/#jive-document?content=/api/core/v2/documents/4988
Sent from my HTCONE using Tapatalk
Is there any solution for this problem ?
Is there anything I can do to fix this problem ? (different rom or radio...etc..) Or I have to give up the phone... Cause it is too much headache to "searching for network" all the time and miss all the call with no service on the phone without knowing..
Thanks
lazybozz said:
Is there anything I can do to fix this problem ? (different rom or radio...etc..) Or I have to give up the phone... Cause it is too much headache to "searching for network" all the time and miss all the call with no service on the phone without knowing..
Thanks
Click to expand...
Click to collapse
well, I am not an expert on the tmobiles network, but going by what lazybozz, said, I seem to remember tmobile using different bands than the other carriers, so what you may be experiencing, is the phone being in the vicinity of multiple towers, but not all of them are within the band that the phone supports. So its like the phone doesnt even see those towers. On a side note, this issue caused alot of chaos for those who unlocked iphones about 3 years ago, they could use EDGE on tmobiles network but not 3G, so i assume this is a similar situation. So long story short, yeah you probably cant fix the problem, unless you get a quad band phone. I could be wrong, but it does sound like a logical reason for the issue you are having.
as elvisypi said above, Its the freq that T-mobile operates on in that area. If your getting T-mobile at all in the states then you have already flashed a radio. However flashing any other radio is not going to give you the freq that tmobile uses, Its not a software limitation its a physical hardware limitation.
Thanks for your reply, do you know any app out there that monitor and alarm you when the network or signal is lost ? That works with 4.3 ?That way at least you know the phone is offline ... some of the apps I tried is anything at all ...
Thanks
Have you tried an app like tasker? Its essentially an automation app. It isnt jist for your use. Its for many different functions. Jist look on the app store for tasker. That might help
Sent from my HTC Butterfly s using Tapatalk

S3 mini i8190 no network

I left the phone over night like always and in the morning when I woke up there was no network... It recognize every sim card but it just won t register on any network. Any solution to this problem? Or my phone is for garbage? :crying:
Anyone any suggestions? I installed network signal info app and it shows that it has signal, but when I want to call someone it says not registered on network...
could be a problem with the sim card, ask your network to send you a new one & try that
Try to restart your phone. If this doesn´t help I think it´s a problem with your SIM-Card...

Note 5 at&t emergency calls only issue.

Hello. About a 4 months ago i have bought from eBay a note 5 at&t version. I live in Greece and my network operator is WIND GR. The phone works fine but from time to time i get an emergency calls only message. And i can't get and do a phone call. If i restart the phone everything goes to normal. Sometimes it goes on and off by itself (the problem).
Have been anyone experiencing the same issue? If the phone is incompatible with my network operator should it not work at all?
Did you tried to change the sim card? Maybe issue is from sim or from sim slot
johnny.goldy said:
Did you tried to change the sim card? Maybe issue is from sim or from sim slot
Click to expand...
Click to collapse
My sim is new. When i purchased the phone i have changed my old sim with a new sim 4g compatible.
It happened again. And i am missing calls like this. I will smash it with a hammer
Go to settings, backup and reset, then reset only network settings, see if any better signal
johnny.goldy said:
Go to settings, backup and reset, then reset only network settings, see if any better signal
Click to expand...
Click to collapse
Done that right now. Tomorrow i will get a new sim card and i will post if anything gets better. Thanks for the help.
Update of the situation. I have changed sim card 2 times. It still happening. My phone runs at nougat now and the problem still appears as before at 5 and 6 Android version. I currently gonna change service provider that has better and stronger signal. From what i have discovered. When the phone looses signal due too poor service provider signal sometimes it can't register to network by itself. If i enable airplane mode and then turn it off it comes back. Any clue? If it's hardware issue what can i change?
Should i have at the mobile networks auto detect or manual and my carrier?

Samsung note 9 N9600 VZW network issue

Hi guys,
My toy is a samsung note N 9600 and its factory unlocked. Last week ported out from T-mobile to keep my original number and facing a wried issue.
The day I ported out from T-mobile, VZW network couldnt be recognized when I tried to activate the VZW sim card. "No network connection." and no call or text can be made. However, after I RESET my device to factory model, it SUCCESSFULLY recognized VZW and LTE function works well. Sounds wried? The story doesnt end here.
Yesterday after I turned off the VZW sim card by accident-- n9600 is a dual sim card which allows you to turn either sim card off-- the network connection lost again, im not talking about LTE connection, but all network service including internet, phone call and text function. Tried a lot to get the connection back but failed. Guess what? RESET, THEN VZW comes back!!! Being driven by curiosity, I turned off the sim card agian, and then, as my expect, no network connection. Ok, rest---works---turning off sim card---no connection---reset……
I am really annoyed by this and have no idea why it is. So if anyone of you have clue of it, plz let me know. Thank you in advance!
Teddy
No one experienced same issue before?

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