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[Q] Intermittent "not registered on network"

Hello people. I searched for info on this issue, but nothing for the Captivate came up. Intermittently I'll wake my phone up and there will be a little circle with a line through it where there should be network info. Anything I try to do with the network pops up a "Not registered on network" (or something like that) message. Usually rebooting the phone will solve the problem, but last weekend after three reboots it was still doing it. I left my house and an hour later checked it and no circle/line icon. This happens every several days, so not a chronic problem yet. Still very annoying. Any solutions? Thanks.
Stock Captivate.

I would consider warranty return if it were me I havent seen or heard of this before your post. good luck.

I have a stock captivate and let's just say I am incredibly disappointed and annoyed with it and at&t in general I'm tired of all the run around and hold up concerning froyo, but this isn't the thread for that.
My phone has been glitchy since the get go. The newest is the issue with "not registered on network". It has happened off and on, but a couple days ago, after I had turned the phone off for the night and back on, the phone screen blanked out while the bottom touch panel stayed lit and everything became totally unresponsive. After several reboots by removing the battery, my screen finally came up again, but so did that little blue circle and line...voila..."not registered on network"
The guy in tech support from at&t tried to help me out. He stayed on the phone with me for over 2 hrs trying to correct the issue, but even after a factory wipe...nada. Lost all my apps, free and purchased... if we would have froyo like promised, all my apps would have been backed up...UGH...
This is actually my third captivate in as many months. My first phone bricked itself after 2 days. No one could ever figure out why. I am waiting on a replacement as we speak. Of course my "new" phone is being replaced with a refurbished one. I hate that considering my current phone was only 3 months old and didn't have a mark on it, but what can I do?

because you don't mention if you're running stock or a custom ROM, I'm going to assume custom ROM. and if you are, then you must have not searched very hard because this is already a semi-known issue: http://forum.xda-developers.com/showthread.php?t=864903
it happens to me ANY time I use a modem newer than JK3... when I use UGJK3 or older, no problems... but if I use UGJK4 or newer, random "no service" on the lock screen with the "circle with a line through it" in the notification bar. as of right now (I believe) there's no known issue why some modems fail on only some hardware. I have a batch 1006 and it works fine right up until the UGJK3 modem, while some people seem to have absolutely no issues with modems (even the newest ones like UGJL2 and TLJL3). basically, if you're running a JPY based ROM, flash JK3 and see if that helps... if that doesn't, go back to a stock captivate ROM of some sort with a stock modem so you don't have these issues (never happened to be me on JI6/JJ4)

Try changing ur SIM card. That could solve the issue.

In my case, it is original stock all the way. The SIM card is fine because I switched it into two different at&t phones and had no issues at all. Right now my Captivate is a gloried camera and MP3 player.

I forgot to subscribe to my own stinking thread! I know this is stale now, but here goes.
I'm running stock froyo, rooted. At the time of the original post I was using it completely stock on eclair. Shortly after the post, it stopped happening and haven't had issues since. I still don't know what caused it. Thanks for all the input though.
Sent from my SAMSUNG-SGH-I897 using XDA App

NvigR8 said:
I forgot to subscribe to my own stinking thread! I know this is stale now, but here goes.
I'm running stock froyo, rooted. At the time of the original post I was using it completely stock on eclair. Shortly after the post, it stopped happening and haven't had issues since. I still don't know what caused it. Thanks for all the input though.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Happened to me a year or so ago on a different phone. Turned out they were upgrading the tower closest to me with new hardware and were shutting it down intermittently to work on it.

Data speed icon?? Gone?? Invalid Sim sometimes??

Okay I have been having the t-mobile "invalid sim card" issue and the phone currently is running with the t-mobile carrier logo. I was able to make calls, and connect via WiFi. I am not able to access the web2go page when I select data in the "wireless & network settings" page with a check. I used to be able to at least access this page with wifi turned off and it would show a little 4g icon on the top? I will post some screenshots. I downloaded GeRIL just to see what it said? I think my phone is rooted? I ran superuser and said the phone was not but the last action I did before getting the t-mobile to show up was a zip restore with CWM so I assume it's rooted? Might be just a flash? One other thing is that I have the WiFi and GPS on and it does not appear to get my location for weather in the weather app?? I can open Google maps and GPS is within 60 meters of my location. I want to reboot the phone but am afraid it won't be back to normal and I will get the error "Invalid Sim Card" again? Is there anything or tests to run while the phone is on the t-mobile network I should check first before rebooting? Or files I should try to use or flash? Or any service menu codes to run diagnostics? Thanks in advance. I forgot to mention that I will be getting a replacement from t-mobile in a week, I did the online chat and they said they will send a replacement under warranty. The box has a date of 7/29/2011 so the phone is about 3-4 months old? The phone is unlocked and has been rooted before, but the issue happened days before I modded this G2x. Basically, today it could connect and tomorrow it might not...or If I reboot It usually goes to the "Invalid Sim Card" I have read other posts with issues of the same type from other users but found no solutions?? Baseband, RIL, Sim ect...all points to a bad phone(using t-mobile) because If I use any other carrier card in the phone it works without errors. That makes me think it's a firmware with t-mobile issue but I could be wrong? Hopefully if the replacement goes thru the same ICS 4.0 will be out and make this phone a beast again?

This might work or it might not: rename your APN manually (Settings/Wireless/Mobile networks/Access Point Names/edit) you can either edit or restore to default to restore mobile data connectivity. Try restoring to default.

I just accidentally hit Airplane mode and it killed it!!! Now it's back to the Invalid Sim Card error again...bummer!!!!

Wait a minute...I waited and read a few posts and clicked the Airplane mode off and on again and it came back to the t-mobile carrier..??? I still have not rebooted the phone though? Hmmm...should I?

Did you get a new sim card when you got the phone? I remember when I got this phone they told me not to use my 5 year old sim card from my previous phone. I say try a new sim card, if that doesn't work try to reset the apn with the instructions I posted last, and if that doesn't work it might just be a bad sim card reader.

I think more on the lines of a bad sim card reader...I have a new sim card...about a 3 days old, got it from t-mobile cause i had the older sim with the larger gold contact patch. The phone is already on order...they said 7 business days..

Same issues here
Sent from my LG-P999 using xda premium

This is a tricky subject to cover. I have been involved in a few discussions about this. I am unable at this time to post links to threads.(I am at work) if you pull up my profile on here and look at topic I have posted on should help you in the rite direction. Every thing you have listed in your open is covered in a discustion some where....it most likely is all barrier deep. if you need further help post back here. I will help as much as possible.

Can't you just do a hard-reboot? Hold down Power + Volume Up
Sent from my LG-P999 using xda premium

FatalityBoyZahy said:
Can't you just do a hard-reboot? Hold down Power + Volume Up
Sent from my LG-P999 using xda premium
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Click to collapse
Yes some times that will work. Other times might take 2 reboots. Also sometimes toggleing airplane mode can bring back apn. After a few sim cards and all my problem went away. When I had the issue I was cm7 rom. Stock Rome didn't really seam to have this issue.

just to close this thread I already received my replacement phone from tmobile. I am no longer trying to track down the issue. Thanks for all of the replied and comments. every one who contributed will get a thanks from me.
sent from my HTC Inspire 4G Straight Talk Plan to XDA Developers

FatalityBoyZahy said:
Can't you just do a hard-reboot? Hold down Power + Volume Up
This is what I did to fix it whenever I was having this problem.
Sent from my LG-P999 using xda premium
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Click to collapse

Yes doing a hard reboot will reset the Apn/data loss problem. (Also toggling airplane mode would some times reset it.) This is only a tempory solution as it could happen again. On cm7 rc1 it would happen to me at least once a day. As well as many others. Off of the top of my head it was something wrong in a radio file.(? Not sure what file) shortly after the release cm7 stable 7.1.0.1 was posted. I believe that had the patch for the data loss issue. It is possible that some cm7 based Rome may still have a data issue loss as they might not have the updated patch. At the time stock based Roms did not have the issue and as far as know. Some people faced with this issue could have had a faulty sim or phone. The other thing that was happening during the life of this issue was how many people running cm7 based roms didn't have the issue. I no longer have this issue. I followed the bug report that was submitted and sealed out the sim card twice. (I think it was cm7 issue on my device) OP- I hope that this swap works for you. If it don't, I will be more that happy to help. also thank you for your service.
I have posted what I know and can remember here in hopes that it can help some one else out in the future.
Sent from my LG-P999 using XDA App

When I had the phone I installed CM7, and the daily's...ect..It WAS a phone issue (hardware) I now have had the replacement phone for 1 week and no issues what so ever. That's not to say that the issue will arise again? I have rooted and am running no ROMs at the time but am thinking of going back to the FROYO 2.2 just to get the camera like it was in the older version. I hate the camera in GB 2.3.3. No zoom....c'mon LG..where did you guys lay down to sleep during this process if the development? One other feature that has nothing to do with the camera that I would like to see happen is to be able to enable a bluetooth mouse. I tried my Targus mouse and no luck. I think you can use a bluetooth keyboard but have none to test. I was thinking of shelling out the 160 smackers for the infared keyboard..small and can fit in your shirt pocket, and it's bluetooth.

Cannot Connect to AT&T Network (Neither Voice Nor Data)

For some reason I cannot connect to AT&T's network for voice/data. I had been running MIUI for about 3 months and all was good. I came back from a trip Thursday and the phone wouldn't find a network after turning off airplane mode, but rebooting seemed to fix it. However, today I cannot get it to connect at all.
I have tried:
Wiping cache/davlik cache
Fixing permissions
Tried searching for a network operator through settings->mobile network->network operators, got nothing
Wiping user data and switching to ZEUS Build 6
Tried searching for a network operator again
Went back to 100% stock with GTG's Ultimate Unbrick
Still nothing for network operator under "Available networks" (Default setup is greyed out)
I'm going to guess either my SIM or 3G chip burned out? I was using the phone heavily the past few days with a ton of GPS stuff to get around Atlanta and it did get pretty hot on the car dash. I'll try taking it to an AT&T store tomorrow (ugh) but am open to any suggestions before I do so .

There are a few options I would consider:
1. Go to the apn and set up a new apn and save it. Select it and then reboot. There are a few floating around. Check my how to thread in the q/a. I posted one there. Make sure you create one and then save it.
2. Try flashing a different modem.
3. Take out the external micro sd. Back up your stuff from the internal sdcard. Factory reset from in the ROM. Warning: a factory reset from within the ROM will erase EVERYTHING, including pictures. Make sure you save everything first. Reboot. And if that doesn't work, odin with a re partition pit file or use one of the heimdall 1-click and then do a reset again.
4. Possibly remove the Sim and clean it. I've heard the Sim socket is very fragile and breaks easily. Use caution. You can always have the att guys do it and let them break it.
Gl

he said he did try flashing another rom and odining back to stock. if that doesnt work, nothing will. hopefully you still have a warranty.

Already restored to stock (and again from within the stock rom)... Forgot about my pictures :crying:
Tried I997UCKL2 and I997UCLB3 modems, with and without custom APNs.
Tried cleaning the SIM
Funnily enough I do get service bars (4/5) after the phone has been on for about a minute, but no HSPA+ icon and still can't make calls/MMS/internet (calls are about 5s of silence followed by an abbreviated dialing tone, then "Call Ended"). Yup, I think it's borked... Guess it's time for an S3! Thanks for the help though.

Imei messed up?
Sent from my SAMSUNG-SGH-I747 using xda premium

crash822 said:
Imei messed up?
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Click to collapse
I can bring up the IMEI dialog fine (*#06#)... Other than that I don't know how else to check it.

you paid your bill right?

The Jack of Clubs said:
you paid your bill right?
Click to expand...
Click to collapse
Haha yep... I just dug out my old old phone (LG CU500 iirc). Found the charger and made a call. Seriously old school but at least I'm sort of connected until I can get my Infuse sorted!

pacallen said:
Already restored to stock (and again from within the stock rom)... Forgot about my pictures :crying:
Tried I997UCKL2 and I997UCLB3 modems, with and without custom APNs.
Tried cleaning the SIM
Funnily enough I do get service bars (4/5) after the phone has been on for about a minute, but no HSPA+ icon and still can't make calls/MMS/internet (calls are about 5s of silence followed by an abbreviated dialing tone, then "Call Ended"). Yup, I think it's borked... Guess it's time for an S3! Thanks for the help though.
Click to expand...
Click to collapse
Sorry to hear about your pictures. I tried to warn you.
The last thing i can think of is to leave your battery out overnight. And then put it back tomorrow.
It sounds like it's hardware related though.
(Different ROM like miui and zeus have their own custom build.prop ril settings and apn. These potentially can mess with your phone connection if the partition messes up.
I wanted to make sure it was not a partition screw up. A double flash in heimdall uckj4 or uclb3 with boot loader checked or one of the Odin un-brick using a pit file would have clear this. Sounded like you did this already. Another user have reported clearing their efs in odin. I would only try this if you have backed up your efs position, either in root explorer or zen tool kit.)
Again, sounds like hw...
Gl

qkster said:
The last thing i can think of is to leave your battery out overnight. And then put it back tomorrow.
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Well when I transferred my sim to my old dumb phone I left my Infuse off (about 3 hours). I just tried it again for kicks and miraculously it works perfectly now! Now I get to reinstall everything again (yay...), but I'm wondering if my sim slot is on its way out or something... Not sure why it would suddenly start working again.
Oh well, time to try out Zeus (MIUI was a little too buggy for me).
Thanks again all... hopefully it doesn't die on me again!

pacallen said:
Well when I transferred my sim to my old dumb phone I left my Infuse off (about 3 hours). I just tried it again for kicks and miraculously it works perfectly now! Now I get to reinstall everything again (yay...), but I'm wondering if my sim slot is on its way out or something... Not sure why it would suddenly start working again.
Oh well, time to try out Zeus (MIUI was a little too buggy for me).
Thanks again all... hopefully it doesn't die on me again!
Click to expand...
Click to collapse
Good to hear.
If it starts to act wonky again, try a different battery. It is possible the heat you described may have damage the lithium cell. Idk..
Ebay has them for about $4 free shipping. Look for a usa shipper...2-4 days

For some reason this happens to me sometimes. I'm unsure myself. What I do to fix it is turn data on and off and then reboot. I do that a few times and then it starts working.
Sent from my SAMSUNG-SGH-I997

So after three different roms, several factory wipes, and all sorts of voodoo magic, it was a bad sim card.
Shame... I kinda wanted an S3 .

[Q]Lost mobile data

this is something that started yesterday. i noticed it for the first time after i left wifi that was on from the night before. im on the road trying to stream pocketcast to my car and noticed it wasnt streaming. then i noticed i had no data. tried the usual methods of toggling it on and off, rebooting, pulling battery and sim card and just left verizon with a new sim card. i called verizon earlier and they thought it was the sim card from what their computer was telling them but after swapping it, its not the case. i can still send text and make calls though
you can call it conincidental but sat night, i downloaded this anti virus app that came with my computer to my phone. it came with free antivirus for up to 3 mobile devices. all was well until after my first scan i think. after i installed the app and scanned my phone, my battery would not stop draining and was scorching hot. uninstalled the app earlier but i think its too late. the program is kaspersky internet security. i really dont want to pin it on the app but it literally happened right after i installed it or a day later when i finally left a wifi signal. im thinking the heat burned something out
im running alliance build 22 since it released with absolutely zero problems pertaining to data drops. at the moment im backing up my rom and going to try a clean install just to see what happens. verizon is sending me a free replacement but i really dont want it because itll be on the 4.3 ota and ill have a permalocked boot loader which i dont want.
sorry for the long read but trying to explain what happened the best i could. looking for any suggestions to help solve this instead of getting a new phone with a locked boot loaded. also tried switching mobile networks and nothing. thank yous

Want to put this out there again before I swap phones
Sent from my SCH-I535 using Tapatalk

Since u gotta send it back. U did put it back to stock. Did the problem still exists afterwards?
Sent from my SCH-I535 using Tapatalk

T-Mobile Text Messages Not Working

Bought the Z3 on 11/11/14, was working fin until the 13. Text messages will say "sending" and I will not be able to receive any messages. Was on the phone with T-Mobile tech support for over 2 hours troubleshooting, no luck. Went back to the store, got a new sim card, and exchanged for a new phone, working fine until the next day (today).
This is my second z3, used multiple sim cards, did factory reset, nothing works text messages still will not receive or send. Salesman told me I can switch phones to anything else. What should I do?
Extremely disappointed in Sony. I believe this is a phone error as I had a Galaxy S3 with tmobile since 2012 with no issues.

I haven't had any problems with mine from T-Mobile. Does it work on WiFi calling? I really don't think it's the phone..

xxquicksh0txx said:
I haven't had any problems with mine from T-Mobile. Does it work on WiFi calling? I really don't think it's the phone..
Click to expand...
Click to collapse
right, and the tech support rep said no issues have been reported with sony. I don't understand what the problem is then? I created a ticket with t-mobile engineering, hopefully that resolves the problem. If not, I'm jumping back to the S3

Strange... I've never experienced anything like this on any of my phone. (When I have service)
Phone calls work?

xxquicksh0txx said:
Strange... I've never experienced anything like this on any of my phone. (When I have service)
Phone calls work?
Click to expand...
Click to collapse
phone calls and data work fine. just text/picture messaged are extremely delayed, or non functional.
could any of my downloaded apps be corrupting the sms service?
I didn't even get a chance to root yet...

qais9 said:
phone calls and data work fine. just text/picture messaged are extremely delayed, or non functional.
could any of my downloaded apps be corrupting the sms service?
I didn't even get a chance to root yet...
Click to expand...
Click to collapse
I'm not sure how an app could corrupt anything... Especially without root.
Do you still have the S3? Pop your sim in and try and text.

xxquicksh0txx said:
I'm not sure how an app could corrupt anything... Especially without root.
Do you still have the S3? Pop your sim in and try and text.
Click to expand...
Click to collapse
can't do that....z3 has nano sim, s3 has micro sim. I actually do not have a phone with nano sim besides the z3

qais9 said:
can't do that....z3 has nano sim, s3 has micro sim. I actually do not have a phone with nano sim besides the z3
Click to expand...
Click to collapse
Ahh.. My bad.
Short of factory resetting, which you already did, I have no clue.
Messaging is your default app right?

xxquicksh0txx said:
Ahh.. My bad.
Short of factory resetting, which you already did, I have no clue.
Messaging is your default app right?
Click to expand...
Click to collapse
yes, but the problem continued on hangouts. I was just on the phone with tmobile tech, and she sent me a picture message, and it took over 30 minutes to receive. I sent a message to myself at 9am cst, and still haven't received.

It happens to me every once and a while, it happen yesterday but all I do is a soft reset.. Then it's sends the text..
If I had to guess it might be a fluke thing or maybe something to do with having stamina mode on but since I get incredible battery ? results it worth the hassle ..
Also I have done a factory reset and use the new Sim that came with the phone ..But it still happens ,I know it does because I get the did not send Error message ..
But for me personally it happens like maybe once or twice a week ..
Hey no phone is perfect but this Phone is so close to it with,whatever shortcomings it might have..
Sent from my D6616 using XDA Free mobile app

alf11211 said:
It happens to me every once and a while, it happen yesterday but all I do is a soft reset.. Then it's sends the text..
If I had to guess it might be a fluke thing or maybe something to do with having stamina mode on but since I get incredible battery ? results it worth the hassle ..
Also I have done a factory reset and use the new Sim that came with the phone ..But it still happens ,I know it does because I get the did not send Error message ..
But for me personally it happens like maybe once or twice a week ..
Hey no phone is perfect but this Phone is so close to it with,whatever shortcomings it might have..
Sent from my D6616 using XDA Free mobile app
Click to expand...
Click to collapse
I never get the "send error" message, and I do not have stamina mode on. This is an amazing phone, no doubt about it, but I may be experiencing a bad batch or something.
This is not an intermittent issue, it is constant and never ending. My 2 Z3's have been far from perfect, and cannot handle the simple task of sending sms. Also the phone has rebooted by itself a couple times already. Sadly, I'll have to return it or wait for the tmobile engineering decision.

What apps do you have installed? My phone has rebooted/froze/force closed at all.

xxquicksh0txx said:
What apps do you have installed? My phone has rebooted/froze/force closed at all.
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Click to collapse
about 40 random ones from the store. actually, I tried to take a picture from the messaging app and it froze. I think the messaging failure is corrupting other processes on the phone, it gets really hot

qais9 said:
about 40 random ones from the store. actually, I tried to take a picture from the messaging app and it froze. I think the messaging failure is corrupting other processes on the phone, it gets really hot
Click to expand...
Click to collapse
If it's getting hot there must be an app stuck trying to do something, check and see what app(s) are using a lot of the battery, GSam works pretty well. Then uninstall/disable it

Me too
I've got the same issue, every so often my phone fails to send a text. It happens at least twice a day. First I thought it was Hangouts, so I disabled the SMS setting on it, and used the stock app, but it's doing the same thing. Sometimes I will retry three or four times with no success. I'm usually able to resend after waiting a few minutes.
I'm not on wifi, I don't use wifi calling. I have great signal strength, and mobile data is working, so I'm not sure why my messages won't send...
I'd also like to note, I came from a Nexus 4, NEVER had an issue with texts not going through... so I really don't think it's T-Mobile...

xxquicksh0txx said:
If it's getting hot there must be an app stuck trying to do something, check and see what app(s) are using a lot of the battery, GSam works pretty well. Then uninstall/disable it
Click to expand...
Click to collapse
good point. had that app installed on my s3, just haven't downloaded it yet due to all the resetting. will download now and see the problem. do you think the tmobile ticket will do anything? Just called the salesman and he said it will do nothing, come and return the phone or swap to something else.
aguillen89 said:
I've got the same issue, every so often my phone fails to send a text. It happens at least twice a day. First I thought it was Hangouts, so I disabled the SMS setting on it, and used the stock app, but it's doing the same thing. Sometimes I will retry three or four times with no success. I'm usually able to resend after waiting a few minutes.
I'm not on wifi, I don't use wifi calling. I have great signal strength, and mobile data is working, so I'm not sure why my messages won't send...
I'd also like to note, I came from a Nexus 4, NEVER had an issue with texts not going through... so I really don't think it's T-Mobile...
Click to expand...
Click to collapse
Yes same exact problem. It must be something weird on the phone that we need to configure. Maybe tmobile can adjust on their end. Yourr the only one in the USA to agree with me and this problem with the z3.

qais9 said:
good point. had that app installed on my s3, just haven't downloaded it yet due to all the resetting. will download now and see the problem. do you think the tmobile ticket will do anything? Just called the salesman and he said it will do nothing, come and return the phone or swap to something else.
Click to expand...
Click to collapse
No clue, I've never dealt with T-Mobile support. Although my general consensus with carrier stores, is that the employee's are generally brain dead and just trying to get their commission on device/plan sales. (Does not apply to all of them) Most just have no idea what they are selling.
However, you definitely have an app doing something in the background. The only time my phone gets hot is while charging and using it, or doing something that stresses the processor. (4K Video/Games...etc.)

xxquicksh0txx said:
No clue, I've never dealt with T-Mobile support. Although my general consensus with carrier stores, is that the employee's are generally brain dead and just trying to get their commission on device/plan sales. (Does not apply to all of them) Most just have no idea what they are selling.
However, you definitely have an app doing something in the background. The only time my phone gets hot is while charging and using it, or doing something that stresses the processor. (4K Video/Games...etc.)
Click to expand...
Click to collapse
I'll keep that in mind. Can't download apps now! Lol! Just tried to download the gsam app via network and via wifi and it just stays stuck. I'm done, there's no way this phone will last 2 years like the s3

qais9 said:
I'll keep that in mind. Can't download apps now! Lol! Just tried to download the gsam app via network and via wifi and it just stays stuck. I'm done, there's no way this phone will last 2 years like the s3
Click to expand...
Click to collapse
Just read in that other thread about voLTE, have you tried disabling it?

xxquicksh0txx said:
Just read in that other thread about voLTE, have you tried disabling it?
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Click to collapse
yes, that was the first thing i did. i appreciate you helping btw