Impossible to get network operator - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

I flashed CM10.1 on my S3 and had the same problem as others where data was intermittent. It worked for some time and after one nightly, I lost my IMEI. So I got back to stock, used the procedure with QPST and got back my IMEI. I got back to cm10.1 and unsurprisingly, I had a hard time having data. But worst off, I had a hard time having cell connection anymore, not even voice or sms. Tried AOKP without any luck. Tried different modems, not luck either. Now I went back to stock and still doesn't work. There's something that is not resetted between flash of ROM that keeps messing up my connection. I also found out that only one network provider is ever found, one is Rogers Wireless (I'm with Bell), or one is EXT. But never any other provider is ever found. And also in *#*#4636#*#* under phone info I can'T change the radio band like I can on the phone of my girlfriend.
So there it is. I'm stuck. I don't really want to buy another phone. It is a software issue for sure. But how can we solve that? Is there any way to restore the EFS to factory default? Could it be buried there? What is the ERI? Could it be that? My stock ROm says that it can't get the ERI version.
Any help is welcome.

my stock telus ERI is unavailable but i think thats normal... i have no problems
from what i understand imei and apn settings are the things to check into

24680 said:
my stock telus ERI is unavailable but i think thats normal... i have no problems
from what i understand imei and apn settings are the things to check into
Click to expand...
Click to collapse
IMEI and APN are good. IMEI will get me data, but I can't even get a cell connection now. No radio at all.

whats your radio band set to?
if i set mine to anything but automatic it wont find networks like yours..
*#*#4636#*#* dont work on my telus s3.
i use a different method
*#197328460# then
UMTS > Debug Screen > Phone control > Network Control > Band selection >
Automatic...
beware what you change in here as there is no return to default

24680 said:
whats your radio band set to?
if i set mine to anything but automatic it wont find networks like yours..
*#*#4636#*#* dont work on my telus s3.
i use a different method
*#197328460# then
UMTS > Debug Screen > Phone control > Network Control > Band selection >
Automatic...
beware what you change in here as there is no return to default
Click to expand...
Click to collapse
Neither of the two works. *#*#4636#*#* was working with CM10/10.1 and AOKP. But not with stock. And the one you suggest after is not working either.
But I remember going ot *#*#4636#*#* before flashing stock rom and I wasn't able to selet any band. On my girlfriend's android phone (HTC) I can.

if it were me.. i would try reflashing stock again... after flashing stock do a factory reset thru recovery... seems to help for clean stock setup.
if still no network i would check that band selection is set to automatic.
maybe someone else with more experience would have a better idea.
you mentioned you changed your band selection and now cant change it back.
i dont think flashing stock changes this.
i think that might be your problem.
ifso you first need to fix phone to use *# code... i have no idea why its not working
it works on my stock telus 4.0.4 and 4.1.1
maybe bell blocks from using *#code?

ebfortin said:
I flashed CM10.1 on my S3 and had the same problem as others where data was intermittent. It worked for some time and after one nightly, I lost my IMEI. So I got back to stock, used the procedure with QPST and got back my IMEI. I got back to cm10.1 and unsurprisingly, I had a hard time having data. But worst off, I had a hard time having cell connection anymore, not even voice or sms. Tried AOKP without any luck. Tried different modems, not luck either. Now I went back to stock and still doesn't work. There's something that is not resetted between flash of ROM that keeps messing up my connection. I also found out that only one network provider is ever found, one is Rogers Wireless (I'm with Bell), or one is EXT. But never any other provider is ever found. And also in *#*#4636#*#* under phone info I can'T change the radio band like I can on the phone of my girlfriend.
So there it is. I'm stuck. I don't really want to buy another phone. It is a software issue for sure. But how can we solve that? Is there any way to restore the EFS to factory default? Could it be buried there? What is the ERI? Could it be that? My stock ROm says that it can't get the ERI version.
Any help is welcome.
Click to expand...
Click to collapse
if i were u i would first try your girls sim in your phone and vise versa and if no luck do the qpst instructions to regain LTE not imei .and if u still cant manually find network operator after that i would format both sd cards and odin back to stock rooted and do the imei injection again for the hell of it and the LTE fix ..and stay on stock rooted or 4.1.2 until u get this figured out cause 4.2 builds are gonna have more probs then 4.1...I know u are having cell connect probs and these instructions are for imei and data but it sounds like your out of options....i lost imei once and had to manually inject with qpst and my reception was one bar til i did the LTE fix and it worked awesome..one more thing is my phone will not select a radio band ever unless i manually select my network operator first or i have no sim card in phone..i have also had sim cards crap out for no apparent reason..good luck
edit. my bad i thought your girl also had gs3..maybe the sims are still the same

stuey25 said:
if i were u i would first try your girls sim in your phone and vise versa and if no luck do the qpst instructions to regain LTE not imei .and if u still cant manually find network operator after that i would format both sd cards and odin back to stock rooted and do the imei injection again for the hell of it and the LTE fix ..and stay on stock rooted or 4.1.2 until u get this figured out cause 4.2 builds are gonna have more probs then 4.1...I know u are having cell connect probs and these instructions are for imei and data but it sounds like your out of options....i lost imei once and had to manually inject with qpst and my reception was one bar til i did the LTE fix and it worked awesome..one more thing is my phone will not select a radio band ever unless i manually select my network operator first or i have no sim card in phone..i have also had sim cards crap out for no apparent reason..good luck
edit. my bad i thought your girl also had gs3..maybe the sims are still the same
Click to expand...
Click to collapse
Thanks for your answer. Really appreciated. I've flashed so much time that I don't see the point of doing it again. I also had, at some point, to inject my IMEI and it worked with QPST.
What I find really strange is that a stock reflash doesn't put everything back to when I bought the phone. Funny thing, after the flash, it knew what my Wi-Fi router password was! So obviously there are some part of the config that is not overwritten. Which I find odd.
I also started playing with the service menu and found a lot of settings for the radio band. No luck yet.

ebfortin said:
Thanks for your answer. Really appreciated. I've flashed so much time that I don't see the point of doing it again. I also had, at some point, to inject my IMEI and it worked with QPST.
What I find really strange is that a stock reflash doesn't put everything back to when I bought the phone. Funny thing, after the flash, it knew what my Wi-Fi router password was! So obviously there are some part of the config that is not overwritten. Which I find odd.
I also started playing with the service menu and found a lot of settings for the radio band. No luck yet.
Click to expand...
Click to collapse
Your WiFi password could have been restored by google just like it puts your contact info back.
If you are doing a Odin to stock that should wipe it clean.

stuey25 said:
if i were u i would first try your girls sim in your phone and vise versa and if no luck do the qpst instructions to regain LTE not imei .and if u still cant manually find network operator after that i would format both sd cards and odin back to stock rooted and do the imei injection again for the hell of it and the LTE fix ..and stay on stock rooted or 4.1.2 until u get this figured out cause 4.2 builds are gonna have more probs then 4.1...I know u are having cell connect probs and these instructions are for imei and data but it sounds like your out of options....i lost imei once and had to manually inject with qpst and my reception was one bar til i did the LTE fix and it worked awesome..one more thing is my phone will not select a radio band ever unless i manually select my network operator first or i have no sim card in phone..i have also had sim cards crap out for no apparent reason..good luck
edit. my bad i thought your girl also had gs3..maybe the sims are still the same
Click to expand...
Click to collapse
This thing is so strange. There's only one network that my phone can see now, and it is 302720. Bell is 302610. No other network is visible. And since I'm with Bell, then I can't connect to 302720. I'm in for emergency calls only. That's why I thought it may have to do with radio. But it seems Rogers (302720) and Bell use the same bands. A channel maybe? But this should be all automatic! It's a pretty stupid bug let me tell you!
Maybe a SIM card issue? That would be quite a coincidence that it happen exactly when I'm playing with ROMs...

RUNNERX said:
Your WiFi password could have been restored by google just like it puts your contact info back.
If you are doing a Odin to stock that should wipe it clean.
Click to expand...
Click to collapse
Ah that's a good possibility. I didn't know it was saving passwords as well.
So if it wipes clean, how come this bug stays? There is obviously something that is not wiped and overwritten or else it would work.

How can one tell if someone losses their IMEI number? Unable to make phone calls? No 4g/ lte?
Sent from my SGH-I747 using xda app-developers app

Deggy said:
How can one tell if someone losses their IMEI number? Unable to make phone calls? No 4g/ lte?
Sent from my SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
When you go to info about your phone, in status you usually have your IMEI number. It'll show 0 if it's corrupted. Or sometimes it's a generic IMEI dans is used when the real one is unknown. It's 049 something I think.
Without an IMEI number you can do phone call. But you'll never have a data connection.

Related

Today,no mobile service - have worked hard for solution - no success

Hi there
I am in New Zealand, recently rooted with DR Ketan’s help and installed PhilzCWM. Also on Ketan’s advice, I backed up my EFS.
My problem: just today I realised I cannot send text, or make phone call. I am on X-Note ROM from 3-4 days ago. I am very sure that after installation, I had normal Mobile connectivity and was surprised to find I didn't. Not sure if my EFS became corrupted, or other ROM setting is wrong.
Under Settings About Device:
My SERVICE STATE says Out of Service
My Mobile NETWORK STATE says disconnected.
My phone number says UNKNOWN
What's weird is
My IMEI lists a long number, assumed correct and not corrupted
So if my EFS partition is corrupted I assume I wouldn't see any IMEI at all?
Far as I know my SIM is activated (I am on a company plan & coworker's phones are normal)
Just now I restored my stock nandroid and .... same thing! No service. So I doubt it's even a modem problem.
Guys I'm screwed, any tips what settings to check etc??
sounds like your IMEI is invalid. i had something random recently. all my flatmates use iphone 4s. they had no signal when @ home. cant send texts etc. wifi works.
then next day my LTE N2 did the same thing. I changed MODEM/BASEBAND problem corrected it self. went back to old MODEM/Baseband. no problems since.
only other thing i can think of is, someone has reported your IMEI to police or your provider..
does it say "NOT REGISTERED" ? or something similar where your provider name appears?
R0B3RTF1SH3R said:
sounds like your IMEI is invalid. i had something random recently. all my flatmates use iphone 4s. they had no signal when @ home. cant send texts etc. wifi works.
then next day my LTE N2 did the same thing. I changed MODEM/BASEBAND problem corrected it self. went back to old MODEM/Baseband. no problems since.
only other thing i can think of is, someone has reported your IMEI to police or your provider..
does it say "NOT REGISTERED" ? or something similar where your provider name appears?
Click to expand...
Click to collapse
Hey thanks for th tip.
My phone recognises Vodafone as my provider but still won't connect.
I will try flashing a different modem, I may not have paid enough attention to different versions when I flashed the aroma installer.
Thanks, I'll report back.
update: Vodafone shop confirms my SIM is 100% good, and it works in another phone. So I think you're right, my IMEI is fukt.
I was told by Voda that my proper IMEi is listed on my phone innards. The IMEI shown in phone settings is waaay different. So it's corrupted somehow. I gotta familiarise myself with how to flash my backup image. Damn just what I need on beer day Friday
I restored my backup image of EFS/IMEI - it solved my problem.
Because there was an IMEI listed in phone settings I wrongly assumed it was the correct one. So flashing ROMS can muck up your EFS.....thank god for backups
you can still use the custom roms. just if your IMEI stuffs up, there is methods to reset it. i had to do it once. wasn't that difficult but was rather troublesome. i just wanted to use the custom rom at the time.

[Q] Band Handover/voice network issues

So I have been waiting patiently for the 4.3 update to roll out to me OTA with hopes that it would fix my issues but my phone has been saying download interrupted and so I have gone back to completely stock and triangle away to get my device status back to normal but it still wont let me download. When looking around for other possible causes I saw that my build number is JRO03L.I747UCDLK3 which comes up as a build number for a nexus 7, the correct build number for my att should be JRO03C. I have no idea how it got that way but I am wondering if the person who bricked it might have put the wrong version of the bootloader or some other part of the firmware on and it somehow didn't brick but is detecting a conflict and not letting me OTA. Or that is what is causing my cell network issues as well. Wanting input from a a few devs as I am not 100% sure what the first part of the build number represents.
Ok guys and girl, I am having a really weird issue with my Att Gs3 that I wanted to see if anyone could help with. To start off a little bit of background. I Hard bricked my s3 in August, sent it for tag and got it back working and stock with no issues. All I did was root the phone for fear of messing it up again but it was running all stock without problems for over a month since the unbrick. About 3 weeks ago I went out of town within the state but a ways away, I was talking on the phone with a co-worker right before leaving town. At some point that evening I get a a text from my wife asking why I was ignoring her calls, I had never received them and according to my phone was in the middle of prime 4g lte zone in San Antonio but I was apparently only receiving that lte signal and the phone was not switching to the voice network on 4g to make or receive calls, I was even able to voice chat with my wife but I couldn't just call her normally. After returning home I was still unable to make or receive calls unless it was right after a restart and I had to try about 15 times, so I called att and tried all of their bs which didn't make a difference at all. Looking around on the internet I found the number that you can put in to get into service mode and switched it to gsm or wcdma only and voila I could make calls again. The only problem with that being that I travel within a city for work and move from 4g to 3g to edge all the time but if I have it set for wcdma only then I have no signal and have to take the time to pull up service mode to switch back and forth. So I tried going back to completely stock again by resetting/ formatting all and flashing the stock rom via odin, my issue persisted so I also decided to flash synergy rom (which I was running prior to the hard brick) and then intergalactic because I saw the fewest problems with it to no avail. I have flashed each stock modem new and old which made no difference at all. Today I was messing around in service mode and found an area that was called handover, in that subsection you have the option for checking the phones ability to switch from gsm to wcdma and back as well as to hspa, when I select any of those options I get the message "temporary block due to build e" or " temporary block code".
I was wondering if anyone has any ideas about what the possible problem could be, imei, modem hardware, or a stubborn stuck modem firmware setting.
I was also wondering if anyone had any experience with figuring out how to re-enable handover because that is where I feel my problem is, either through adb or any programs that let me force change the settings, I would also be happy if someone knew how to turn of only LTE and have both gsm and wcdma on at the same time.
Any help would be much appreciated, I have tried everything I know how to do, but am to the point where I am forced to look at new hardware because my wife is pregnant and I really needs to be able to get a hold of me any time.
Bump
Bump!...not looking good.
madnesshero86 said:
Ok guys and girl, I am having a really weird issue with my Att Gs3 that I wanted to see if anyone could help with. To start off a little bit of background. I Hard bricked my s3 in August, sent it for Jtag and got it back working and stock with no issues. All I did was root the phone for fear of messing it up again but it was running all stock without problems for over a month since the unbrick. About 3 weeks ago I went out of town within the state but a ways away, I was talking on the phone with a co-worker right before leaving town. At some point that evening I get a a text from my wife asking why I was ignoring her calls, I had never received them and according to my phone was in the middle of prime 4g lte zone in San Antonio but I was apparently only receiving that lte signal and the phone was not switching to the voice network on 4g to make or receive calls, I was even able to voice chat with my wife but I couldn't just call her normally. After returning home I was still unable to make or receive calls unless it was right after a restart and I had to try about 15 times, so I called att and tried all of their bs which didn't make a difference at all. Looking around on the internet I found the number that you can put in to get into service mode and switched it to gsm or wcdma only and voila I could make calls again. The only problem with that being that I travel within a city for work and move from 4g to 3g to edge all the time but if I have it set for wcdma only then I have no signal and have to take the time to pull up service mode to switch back and forth. So I tried going back to completely stock again by resetting/ formatting all and flashing the stock rom via odin, my issue persisted so I also decided to flash synergy rom (which I was running prior to the hard brick) and then intergalactic because I saw the fewest problems with it to no avail. I have flashed each stock modem new and old which made no difference at all. Today I was messing around in service mode and found an area that was called handover, in that subsection you have the option for checking the phones ability to switch from gsm to wcdma and back as well as to hspa, when I select any of those options I get the message "temporary block due to build e" or " temporary block code".
I was wondering if anyone has any ideas about what the possible problem could be, imei, modem hardware, or a stubborn stuck modem firmware setting.
I was also wondering if anyone had any experience with figuring out how to re-enable handover because that is where I feel my problem is, either through adb or any programs that let me force change the settings, I would also be happy if someone knew how to turn of only LTE and have both gsm and wcdma on at the same time.
Any help would be much appreciated, I have tried everything I know how to do, but am to the point where I am forced to look at new hardware because my wife is pregnant and I really needs to be able to get a hold of me any time.
Click to expand...
Click to collapse
if you have CM recovery or TWRP you can go back, wipe everything even twice could help, then flash a stock rom reboot and see what happens
if that doesnt work go back to odin and install stock firmware 4.1.2 from Samsung but again you have to wipe data/factory reset
3rd if that doesnt work, try to restore your EFS folder/files using this link http://forum.xda-developers.com/showthread.php?t=1725839
that link has everything, how to fix it, anything you need to know
BUY a new phone or use a different phone if all the options above fail
Tried
View attachment 2362929
winosxbuntu said:
if you have CM recovery or TWRP you can go back, wipe everything even twice could help, then flash a stock rom reboot and see what happens
if that doesnt work go back to odin and install stock firmware 4.1.2 from Samsung but again you have to wipe data/factory reset
3rd if that doesnt work, try to restore your EFS folder/files using this link http://forum.xda-developers.com/showthread.php?t=1725839
that link has everything, how to fix it, anything you need to know
BUY a new phone or use a different phone if all the options above fail
Click to expand...
Click to collapse
The backup restore/fix imei and data restore tools link doesn't go anywhere, does anyone have a link to the restore tool? The only version I can find is for the non us version of the s3.
I did at least use the tool for the 9300 to find out that I have some 000 for s/n and other numbers (see attachment)
is there a patch out for us gs3's to fix this like there is for the i9300?
madnesshero86 said:
View attachment 2362929
The backup restore/fix imei and data restore tools link doesn't go anywhere, does anyone have a link to the restore tool? The only version I can find is for the non us version of the s3.
I did at least use the tool for the 9300 to find out that I have some 000 for s/n and other numbers (see attachment)
is there a patch out for us gs3's to fix this like there is for the i9300?
Click to expand...
Click to collapse
I think I can help, I just need to pull up some files and I might get you the software or program I used to back -up and restore my EFS folder/files
Even fix it, so plz hang in there........will report back later on
Thanks a bunch, I am still trying all kinds of stuff but I feel pretty certain that the problem lies with a messed up efs and I don't think I have a backup unless doing a nandroid covers that as well, which I am not seeing that it does. Any further help is appreciated, is this something that a local cell repair shop can typically fix or is this a possible new phone situation?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
madnesshero86 said:
Thanks a bunch, I am still trying all kinds of stuff but I feel pretty certain that the problem lies with a messed up efs and I don't think I have a backup unless doing a nandroid covers that as well, which I am not seeing that it does. Any further help is appreciated, is this something that a local cell repair shop can typically fix or is this a possible new phone situation?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
this is the software/programme i used to back-up, recover or even fix my EFS files (if they are corrupt and can be used) NV items reader writer
type it on google and pretty sure you will find something , try different links and again am sure you will find a download
have you tried flashing the new 4.3 stock firmware and modem follow this link for everything http://forum.xda-developers.com/showthread.php?t=2498233 or you can wait for AT&T to release the official 4.3 firmware and that will be 100% satified to be stable and will fix all your EFS/IMEI problems FOR GOOD :laugh:
i have the NV items reader writer software that can fix your problems but i dont know how i can share it with you without breaking any rules
ULTIMATE/final solution send it to MOBILETECHVIDEOS and will fix it like its nothing, take it to samsung and have to play some ball, or BUY A NEW PHONE
tried kernels (idont think it will make any difference) but its good to check
I have tried all the other versions but will try the 4.3 what's the name of that software so I can try and find it or of you have drop box you could pm me the info and get it to me that way . In the meantime I found an fusion 2 for 38 bucks from att so I can get calls for the time being.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
madnesshero86 said:
I have tried all the other versions but will try the 4.3 what's the name of that software so I can try and find it or of you have drop box you could pm me the info and get it to me that way . In the meantime I found an fusion 2 for 38 bucks from att so I can get calls for the time being.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
NV items reader writer
type exactly as it is on google or here on XDA
New Info
See new info in OP Please, and before anyone says anything I have spent half the day searching with various keywords trying to find a fix so be kind if it seems obvious to you, I couldn't find it and I did try.
Bump

[Q] Mobile data suddenly dropped

I'm running CM-10.1.3 (stable) on my phone (T999) with the UVMD5 modem and last night I lost all signal for about 30mins. I rebooted a few times and toggled air plane mode on and off without any success. Eventually, I got signal again but no data. I can send and receive calls and SMS but I have no data connection (can't browse, no email notifications, etc.). I have tried all the options under the Network Mode settings without any success. Occasionally, I'll see the "E" sign for Edge/2G but there is no data available even then. I also tried updating the modem to UEMJ4 and UEMJC but observed no changes. WiFi works just fine. Could this be a hardware issue? Is the antenna somehow damaged? Is there anything else I could try?
Try another Kernel. If that does not help, Odin flash to Stock. If that too doesn't work then suspect tower issue.
Hardware is a possibility. But lets not get ahead of ourselves
Thanks, I'll give that a shot and report what I find. I doubt that it's tower related since I'm having the same issue at home and at work and my roommate, who has an original Galaxy and is also on Tmobile, is not having any problems.
I flashed stock JB 4.1.2 (UVDMD5) using Odin since I had it laying around and I'm still seeing the same issue. What else can I try?
EvilBoz said:
I flashed stock JB 4.1.2 (UVDMD5) using Odin since I had it laying around and I'm still seeing the same issue. What else can I try?
Click to expand...
Click to collapse
Check your APNs. Those are under Settings > Advanced > Network. Its called Access Point Names. It should be set to epc.t-mobile.com. See this thread for details.
Try UVDLJC or the prior version to MD5. If that too does not help then take to T-mo for antenna Repair.
Check your IMEI number. If it is zeroed out PM me. Otherwise just let us know here, (but don't actually post it).
DocHoliday77 said:
Check your IMEI number. If it is zeroed out PM me. Otherwise just let us know here, (but don't actually post it).
Click to expand...
Click to collapse
The IMEI is 0. I never backed up the EFS folder but I was able to get the number from tmobile.
I have been having the same issue since June 2013 after doing to 4.1.2 OTA update from T-Mobile, at the time I didn't realize the IMEI was listed as unknown. So for months I have not gotten a cellular data connection better than Edge. Also after that update trying to check for a software update on the phone resulted in an error, and Kies told me my firmware was not supported for upgrade. Looking in some support forums and talking to T-Mobile got me nowhere, so I have just been dealing with it.
Wanting to upgrade I recently used Odin to load the official T-Mobile 4.3 ROM on the phone, actually hoping that would fix my issue (still in the dark about IMEI) which it did not.
I had never backed up the EFS folder, since as a standard user I had no idea what it was and while performing an update from my provider I didn't realize anything would need to be backed up outside of Kies. Now that my warranty is expired and having to take matters into my own hands I am on a quest to find a fix, however I don't want to "brick" my phone in the process, at this point I know enough to be dangerous.
Currently;
Android 4.3 Official T-Mobile ROM
BASEBAND is good T999UVUEMJC
Kernel 3.0.31-1962493
IMEI is Unknown
Looking at some other posts here at xda-developers I tried to follow some instructions on repairing or restoring IMEI using NV reader/writer, however I cannot get NV reader/writer to connect to my phone.
I have noticed in 4.3 when using *#7284# in the dialer the QualComm settings are no longer present, only MODEM and PDA are available.
I have poked around in Service Mode *#197328640# and found a setting that I thought might help, but I have a feeling it is the same thing as 8#7284#
[1] UTMS > [6] COMMON > [4] DIAG CONFIG > [1] USB or [2] UART
So at this point I don't know how to proceed, again I am not thrilled about loading a custom ROM, or really any ROM for fear of making the issue worse or bricking the phone. I have read a lot of posts about no longer being able to make calls due to IMEI issues. Everything works right now except cellular Data.

[Q] No Service. Data working but no Call/Text.

Hello!
I have m919 T-Mobile Galaxy s4 but I'm with other carrier (Wind Canada). I rooted the phone about a month ago, I believe, using THIS guide.
I spent yesterday in environment where I didn't had coverage for most of the day, but i haven't gotten it back yet. Sounds really weird as it might be not connected to the fact at all. I have 4G connection active, which means that I have internet, but it keeps 'searching' for service and I can't Call/Text anyone, neither I can receive calls or texts. Instead of the bar at the top showing how good coverage i have it just shows a crossed out circle icon.
I've tried reboots, keeping my phone off for 30mins without battery, taking out sim and putting it back in, changing network modes and resetting APN (all from settings panel).
Have anyone experienced something like that and how do I fix it? It was working perfectly for last couple of months and the phone didn't get any damage yesterday neither.
P.S Did the the regular factory reset (don't know if it affects rooting) but it didn't change anything. =
I have same problem.
Did you solve it? and how?
Haven't solved it, that was the whole point of my post!
kokozaurs said:
Haven't solved it, that was the whole point of my post!
Click to expand...
Click to collapse
Never had this happen to me. Data works off your signal, something is wickedly wrong. I'd flash the modem again if you are on 4.2.2 bootloader (doesn't matter which rom or android version). If that fails, go intonrecovery, wipe cache, wipe dalvik cache, and wipe data. If that fails, backup your data and Odin flash back to 100% stock. If that fails, more than likely your /efs folder was corrupted.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Please don't create multi thread on the same topic
xdapowerapps said:
Never had this happen to me. Data works off your signal, something is wickedly wrong. I'd flash the modem again if you are on 4.2.2 bootloader (doesn't matter which rom or android version). If that fails, go intonrecovery, wipe cache, wipe dalvik cache, and wipe data. If that fails, backup your data and Odin flash back to 100% stock. If that fails, more than likely your /efs folder was corrupted.
Sent from my SGH-M919 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I think I'm gonna flash it back to 100% stock, but the problem is that I'm on mac and I don't know how to flash it back. Is there any guide on how to do it from MAC platform?
Thanks!!
kokozaurs said:
I think I'm gonna flash it back to 100% stock, but the problem is that I'm on mac and I don't know how to flash it back. Is there any guide on how to do it from MAC platform?
Thanks!!
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=755265
http://forums.techdiscussion.in/sho...Heimdall-Terminal-on-Mac-OS-(Odin-Alternative)
Second one will be more helpful. Good luck! :good:
xdapowerapps said:
http://forum.xda-developers.com/showthread.php?t=755265
http://forums.techdiscussion.in/sho...Heimdall-Terminal-on-Mac-OS-(Odin-Alternative)
Second one will be more helpful. Good luck! :good:
Click to expand...
Click to collapse
Ok, so I got heimdall, and got the recovery.img from the other topic. I followed the steps that was provided in the second link, but nothing much changed, it successfully uploaded the recovery.img, then i did recovery boot with power button + home button + volume up, it did some things with a pirate android guy in the back and thats it, booted up. Not sure if I have everything back to stock or not - either way, the issue with the network hasn't been resolved!
kokozaurs said:
Haven't solved it, that was the whole point of my post!
Click to expand...
Click to collapse
Tried this?
go to settings/more networks/Mobile networks/Network operators/Search now......
It might take a minute or two, then show you some networks it finds. Select your provider and it should list some options for you.
need to see Mobile data with a check, Data roaming checked, network mode should be LTE/GSM/WCDMA(auto connect)
If you KNOW what your APN (access Point Name) is you can check if it's correctly there.
It usually is downloaded with the search for network so just try with whatever is ther for now.
Back all the way out, and power off. Take out the battery, wait like 30 seconds, replace the battery and power on again.
See if you get service and can dial out.
Aloha and Good Luck!
bobolinko said:
Tried this?
go to settings/more networks/Mobile networks/Network operators/Search now......
It might take a minute or two, then show you some networks it finds. Select your provider and it should list some options for you.
need to see Mobile data with a check, Data roaming checked, network mode should be LTE/GSM/WCDMA(auto connect)
If you KNOW what your APN (access Point Name) is you can check if it's correctly there.
It usually is downloaded with the search for network so just try with whatever is ther for now.
Back all the way out, and power off. Take out the battery, wait like 30 seconds, replace the battery and power on again.
See if you get service and can dial out.
Aloha and Good Luck!
Click to expand...
Click to collapse
yep, one of first routines i tried. No difference
kokozaurs said:
yep, one of first routines i tried. No difference
Click to expand...
Click to collapse
Ok, now you might want to call your provider and ask them to remove you from their network and reinsert you again. That procedure will often re-enable normal operation of cellular connectivity.
They will ask you to power down and remove your battery for about a minute, then power up again.
Aloha and Good Luck!
Tried it all
Well im in the same boat here.
I checked the IMEI is correct
i did a full stock MK5 install with Odin without sim inserted and with
*#2263# helps it recognizes the network on the search list (WIND)
but it wont connect (failed to connect try again)
sometimes it connects to 4G and i can use the web
but no calls or sms
i noticed i dont have LTE enabled which ill do tomorrow
i even opened my phone to check that no cables came off as it was in service for a broken screen
tried a different sim from koodo wich also acts weird it connects to data but wont make phone calls or sms
the problems began after its been UNLOCKED (sim free)
any suggestions? im willing to try anything
its been in service 4 times and still they cant figure it out...
thanks!
ph3r0c1ty said:
Well im in the same boat here.
I checked the IMEI is correct
i did a full stock MK5 install with Odin without sim inserted and with
*#2263# helps it recognizes the network on the search list (WIND)
but it wont connect (failed to connect try again)
sometimes it connects to 4G and i can use the web
but no calls or sms
i noticed i dont have LTE enabled which ill do tomorrow
i even opened my phone to check that no cables came off as it was in service for a broken screen
tried a different sim from koodo wich also acts weird it connects to data but wont make phone calls or sms
the problems began after its been UNLOCKED (sim free)
any suggestions? im willing to try anything
its been in service 4 times and still they cant figure it out...
thanks!
Click to expand...
Click to collapse
Ok I found the solution. Apparently I have bought a stolen phone. Check the imei if it hasn't been blacklisted!

Intermittent data connection

My phone started turning on and off its 3g connection. Wifi works solid.
I'm on a good signal area. It's not like the 3g is on and I can't connect in anything.
The problem is that the phone turns on and off. It doesnt fix the 3g connection.
Also, Checkin service it's draining the battery a lot.
Looks like a software problem with Google Play Services and its Connection checking service.
Anybody have seen this problem?
thanks in advance.
Starting to worry right now. Did a factory reset on a flashed V10j KDZ and it didn't change.
TWRPed a 20A Lollipop rooted ZIP and it didn't change. Right now I'm trying to go back stock using LG PC Suite.
I can't understand why this can be a hardware problem because 3G actually works but it keeps constantly getting on/off in ~10 seconds intervals.
Looks like a bad system file that is messing with it.
EDIT: Also, the phone can't search for mobile networks anymore. I just tell it to do a manual search and it can't find anything.
What would this be? Modem file broke? WTH.
alfablac said:
Starting to worry right now. Did a factory reset on a flashed V10j KDZ and it didn't change.
TWRPed a 20A Lollipop rooted ZIP and it didn't change. Right now I'm trying to go back stock using LG PC Suite.
I can't understand why this can be a hardware problem because 3G actually works but it keeps constantly getting on/off in ~10 seconds intervals.
Looks like a bad system file that is messing with it.
EDIT: Also, the phone can't search for mobile networks anymore. I just tell it to do a manual search and it can't find anything.
What would this be? Modem file broke? WTH.
Click to expand...
Click to collapse
I have random disconnects/drops too, Although my 3G/LTE icon never actually goes away, just the signal.
Personally I would suspect your modem as #1 suspect.
Factory reset rarely fixes much, I would try re-flashing the phone.
If KDZ flash doesn't fix it maybe try a tot & dll flash using LG Flash Tools with modified megalock.
It definitely looks like a modem issue BUT it can be a your os. I had issues where my modem wouldn't flash from a stock flash on my S4, But manually flashing my modem would SOMETIMES work, I would have to flash the modem a few times usually before it would actually flash.
I had problems before but it was caused by network. Did you tried with different SIM card from other network?
I have the same problem and couldn´t fix yet... Didn´t try to use another SIM card to check if is a network trouble, but it´s driving me crazy to be without connection and a huge battery draining...
Any other ideas?
viniciuscordeiro said:
I have the same problem and couldn´t fix yet... Didn´t try to use another SIM card to check if is a network trouble, but it´s driving me crazy to be without connection and a huge battery draining...
Any other ideas?
Click to expand...
Click to collapse
Just try with other network SIM. I had same problem long time back with Nokia n96, Motorola defy and some other phones. Some of time it helped to set phone only to use 2g network. That was happening the most of time when i used VIP network in Serbia.
Setting only 2g signal helped sometimes but after changing SIM card, problem was solved.
This problem happen to me without reason and after some time i tried same network again, there was no problems.
Probably a different SIM will correct the problem, because after a lot of trial and error changes I realized that the current Network APN (you can reach going on Mobile Networks inside Connections and Networks [translation] in the Settings) was faulty. I deleted the APNs and made a restore. (Delete and Restore are the only options inside Network APNs).
I imagine that changing SIM cards from another carrier will reconfigure the APNs and probably fix the problem.
I´ve tried a different SIM card and didn´t found any troubles, but when I put mine, the problem come back again... So it´s a problem with my carrier. I´ve deleted the APN settings, restart, restore, restart again and didn´t solve. I´ll call them to check if they are experiencing any network issues.

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