Develop Bugs

[Q] Galaxy Nexus No Signal (unrooted-stock)

I dropped my Verizon Nexus, and now it seems the only thing that's broken is the cell service, 3G, 4G, etc. There is no ability to make any phone calls, emergency or other. Wifi functions, touchscreen fine, everything else works.
I have unknown under carrier, but baseband is listed as normal. This is an UNROOTED phone, on the latest Jelly Bean version. The signal bar is always "no signal/bars" with a small R over the signal icon. I assume this means roaming, but it can't locate a signal, and says always "searching". I've checked and all the settings are correct, everything enabled, etc.
It seems that the radio is gone, and so Verizon initially said the sim card was bad, but they replaced it and said that wasn't it, and the device had "some sort" of issue. Of course, I told them the truth that it happened after a drop, but since I don't have insurance I'm stuck (back to DINC until this is solved), and Verizon left me on my on in the store, saying essentially, sorry, which I expected.
Does anyone have any idea? The MEID is good, so I don't think the phone is toast, and it's never been rooted or otherwise, all stock from day 1.
Please help me. Thank you.

After googling, some suggest removing the sim and battery for up to 20 minutes to let it reset, then trying it. If not, perhaps it's still under a samsung warranty? Saying it just dropped service...a lie of omission of course.

bodh said:
After googling, some suggest removing the sim and battery for up to 20 minutes to let it reset, then trying it. If not, perhaps it's still under a samsung warranty? Saying it just dropped service...a lie of omission of course.
Click to expand...
Click to collapse
Verizon wouldn't service it, it has a small crack in the screen which wasn't caused by this drop - and I don't have insurance - so I'd imagine Samsung wouldn't either. I'm trying your suggestion. Thank you.

startak11 said:
Verizon wouldn't service it, it has a small crack in the screen which wasn't caused by this drop - and I don't have insurance - so I'd imagine Samsung wouldn't either. I'm trying your suggestion. Thank you.
Click to expand...
Click to collapse
Tried to no avail, still no signal.

startak11 said:
Tried to no avail, still no signal.
Click to expand...
Click to collapse
I accept no responsibility if damage occurs from dissasembling your phone.
That said, I have a vzw gnex and i hate cases. So whenever the thing got scuffed up i just got a new backplate and installed it.
The back plate of the gnex isn't that hard to get off wit a couple of guitar pics and a jewelers screwdriver.
http://www.ifixit.com/Teardown/Samsung+Galaxy+Nexus+Teardown/7182/1
That guide is for a gsm nexus too so it does not show the daughter board
I would check to see that the ribbon cable going from the NAND/Sim-card-tray daughter board is fully steated. BE CAREFUL THOUGH. All of your phones memory (minus ram of course) lives on this daughter board.
http://www.techrepublic.com/photos/...?seq=37&tag=content;siu-container#photopaging
Thats the daughter board.
The blue thing on the left is the connector that mashes down on the motherboard.
Also while your in there you can check the pressure contacts where the phone connects to its antennas that are embedded into the back plate (they just look like sitckers.)

Verizon Galaxy Nexus no data or cell service / Possible hardware problem

Recently i have purchased a used Verizon Galaxy Nexus from a seller on ebay. It is in excellent shape and has no cosmetic damage to the phone. The persone i purchased it from was a reputable seller and had the feedback to back it up. Now with that said. The phone was listed as broken because the seller could not get the phone to connect to the Verizon cell network.
So i bought the phone thinking that maybe the phone had some deleted files on it that i could replace or better yet. Just flash all new software to the phone and remedy the problem. Thus i would have bought a phone for a quarter the price of a new one and have a fully functioning phone.
As far as flashing and roming goes. I am no novice. I have owned many Android phones, in fact thats all ive owned lol, but this one is causing me some frustration. So here is a list of the things i have done to remedy the problem to no avail...
1) Factory Reset- no go
2) Complete Re-Flash of the entire framework - Im talking everything. Careful fastboot flash of every elemet of the android ecosystem
3) Radio swapps from older versions to newer versions.
4) Multiple reboots and toggleing airplane mode over and over again.
5) Flashed several aftermarket roms.
6) Toggled the test mode in phone settings using the hidden menu (*#*#4636#*#*)
For a short period of time last night i was able to get the phone to display up to 3 bars of service using the method described in #6 I NEVER got data working and i could only temporarily call out. My girlfriend would see me calling in on her phone but immediately upon answering it would drop my call. The phone never rang on my end and it cannot receive calls. Also cannot send text messages.
I thought for sure i could fix this one, but for some reason it is being stubborn. Please Help me XDA!!! Your my only Hope!!!
P.S. As an aside i did take the phone apart and check to make sure nothing was damaged. All the components look top shape and all the little snap connectors are securely fastened. No metal contact prongs are bent and everything is clean of dirt and debris.

does it display your IMEI *#06#?
maybe some NV_DATA corrupted or it can be hardware issue

Does indeed show imei and I had it checked for lost / stolen / blacklist by Verizon. At the store now to get it checked out.
And that is actually meid that that code pulls.
Sent from my large and in charge GN2 using Forum Runner

And the verizon store could not do any good. Has anyone ever ordered a replacement back casing from ebay or anywhere else on the web? Im thinking it may be a ribbon cable somewhere. Maybe even the bottom board that houses the headphone jack and a series of winding antenna leads.
I am still open to suggestion though so anyone with any information on the matter please let me know.
EDIT: Been looking at Cell phone repair shop and they have the antenna / headphone replacement in stock. They also have the back mid frame with all the antennas on it as well.
I feel like this is a 50/50 shot in the dark as to which part i need to fix this problem. Gonna give them a call tomorrow and see.

I've ordered a new mid frame in the hopes that there is a torn ribbon cable somewhere in the old one. I'm still not certain that's what it is though.
Anyone with some insight please get back to me.
Sent from my Galaxy Nexus using Forum Runner

Bump.
Still need some help guys. This is a very perplexing problem that i would like to fix.

Anyone? Mods? Admins? Devs? I need some help here. Don't let me down xda!!!
Sent from my large and in charge GN2 using Forum Runner

sounds like a unconnected/torn radio cable to me.

Zepius said:
sounds like a unconnected/torn radio cable to me.
Click to expand...
Click to collapse
I've been all through the device and checked all the connections and hardware. Everything has a firm connection and is in top shape. I even replaced the back midframe cover with a brand spanking new (OEM Samsung) one. Its behaving like a software problem in that I can toggle between 3G and 4G and get 3G for a brief moment and can even call out, but the moment that someone answers the call it drops service and i have to start the process all over again.

UrbanDroid said:
I've been all through the device and checked all the connections and hardware. Everything has a firm connection and is in top shape. I even replaced the back midframe cover with a brand spanking new (OEM Samsung) one. Its behaving like a software problem in that I can toggle between 3G and 4G and get 3G for a brief moment and can even call out, but the moment that someone answers the call it drops service and i have to start the process all over again.
Click to expand...
Click to collapse
Try fastboot flashing the factory images from google.
Sent from my Nexus 7 using xda premium

blackhand1001 said:
Try fastboot flashing the factory images from google.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
I've done this as well several times. 4.2.2 and 4.2.1 and yes i made sure i had the correct firmware for my version of the phone. Verizon toro.
Edit: Has anyone ever sent in their phone to Samsung for RMA? I called and talked to someone and tried to work through the problem and she came to the conclusion that I should send it in at no cost and that I wouldn't be charged anything unless I authorized them payment before. Essentially they will run through the phone and check everything out for free and see if it can be fixed.

UrbanDroid said:
I've done this as well several times. 4.2.2 and 4.2.1 and yes i made sure i had the correct firmware for my version of the phone. Verizon toro.
Edit: Has anyone ever sent in their phone to Samsung for RMA? I called and talked to someone and tried to work through the problem and she came to the conclusion that I should send it in at no cost and that I wouldn't be charged anything unless I authorized them payment before. Essentially they will run through the phone and check everything out for free and see if it can be fixed.
Click to expand...
Click to collapse
I did the same thing. Bought one from ebay in good shape. Was told it functions. I have the HTC Rezound so the sim wouldnt fit. Went to Verizon and they put in the mini sim and no service. Reset the phone and even tried a new sim. I have since tried different roms and radios, but still no service. Luckily the seller has a 100% guarantee so looks like this one is going back. From what I have read, these are prone to radio issues.

Sir Lemmiwinks said:
I did the same thing. Bought one from ebay in good shape. Was told it functions. I have the HTC Rezound so the sim wouldnt fit. Went to Verizon and they put in the mini sim and no service. Reset the phone and even tried a new sim. I have since tried different roms and radios, but still no service. Luckily the seller has a 100% guarantee so looks like this one is going back. From what I have read, these are prone to radio issues.
Click to expand...
Click to collapse
Yeah. I've read multiple threads about radio issues, but here's the thing. Every one of them claiming to have signal issues also had the random reboot issue. They all were even having problems flashing any Roms or anything else for that matter.
I on the other hand have had zero problems flashing anything. Fastboot works 100%, Recovery flash works 100% and I can unlock and lock the boot loader without issue. Its an odd problem.
Sent from my large and in charge GN2 using Forum Runner

UrbanDroid said:
Yeah. I've read multiple threads about radio issues, but here's the thing. Every one of them claiming to have signal issues also had the random reboot issue. They all were even having problems flashing any Roms or anything else for that matter.
I on the other hand have had zero problems flashing anything. Fastboot works 100%, Recovery flash works 100% and I can unlock and lock the boot loader without issue. Its an odd problem.
Sent from my large and in charge GN2 using Forum Runner
Click to expand...
Click to collapse
I've had an issue flashing, it would abort for no reason. I would also have issues getting into CWM. After playing around with it all night, I don't think its a software issue. I've been reading the antenna has given other people issues and some have even tried to replace them. a Rep from Verizon thought it was the sim reader. I don't believe that because the phone registers a sim and the number tied to it (which is my number). Under status, I does read different every time.
Network: searching for service
Signal strength is usually at: -120dBm 99asu
Mobile network type: (varies) CDMA - 1xRTT:7 or LTE: 13 or unavailable
Service state: out of service
Roaming: not roaming
Mobile network state: (varies) Disconnected or Connected
I've tried different combos such as CDMA and Home LTE Automatic and so on. I think its just a poor design. Seems to be only the CDMA devices tho.

Did OP ever arrive at a solution or at least pinpoint the cause of this problem? I am currently experiencing a pretty much identical problem to the one described (with the exception that I don't even get a 3G signal -- complete lack of signal). My problem started after a brief Airplane mode toggle yesterday and I haven't been able to get on the network since.
Thanks.

I think it's a hardware problem tbh.
I modded mine to work with the palm pre touchstone inductive charging kit. In the process wires were soldered, rear housings were mutilated and the phone was tortured a bit. I was never happy with Samsung's **** build quality so I eventually just ditched it altogether.
I decided to repair it and give it to a family member so I replaced the back housing and USB port with parts ordered off ebay. Ever since my repair work the thing cosmetically looks almost mint. However no OS will recognize it anymore (windows throws an "invalid descriptor" and won't install a driver) and 3G/4G/wifi reception is almost nonexistent. Switching roms or radios doesn't seem to help, and obviously I can't odin a factory image. Pretty much boned.

pbourdyk said:
Did OP ever arrive at a solution or at least pinpoint the cause of this problem? I am currently experiencing a pretty much identical problem to the one described (with the exception that I don't even get a 3G signal -- complete lack of signal). My problem started after a brief Airplane mode toggle yesterday and I haven't been able to get on the network since.
Thanks.
Click to expand...
Click to collapse
Had a similar problem in regards to a lack of signal. It just completely gave out while driving a couple days ago (interestingly enough, the music I was streaming via Soundcloud stopped right as I passed the Facebook headquarters in Menlo Park, which ironically is a 4G dead zone for Verizon). This was a refurbished replacement device that I got about 15 months ago, and was running the latest OmniMetal rom flawlessly for the last few months.
I arrived at this thread and followed all the steps that OP took to try and fix it. Ended up reverting to an earlier 4.2.2 rom and reflashed the radios thinking that might solve the problem. Upon reboot was able to connect to mobile data and make phone calls briefly, but about an hour later the same thing happened. Brought it to the store and swapped out the SIM card for a new one, no dice.
Fortunately VZW is doing open enrolment for phone insurance, so I added it for $10/month to get an extended warranty. Now I'm going to restore everything to stock, lock the bootloader and send it back for a new one. Assuming there are no problems with the replacement, I can cancel the insurance plan, bringing the cost of the replacement Gnex to just 10 bucks.
Was anyone out there able to successfully modify the radio hardware for cheap?

coltronathon said:
I think it's a hardware problem tbh.
I modded mine to work with the palm pre touchstone inductive charging kit. In the process wires were soldered, rear housings were mutilated and the phone was tortured a bit. I was never happy with Samsung's **** build quality so I eventually just ditched it altogether.
I decided to repair it and give it to a family member so I replaced the back housing and USB port with parts ordered off ebay. Ever since my repair work the thing cosmetically looks almost mint. However no OS will recognize it anymore (windows throws an "invalid descriptor" and won't install a driver) and 3G/4G/wifi reception is almost nonexistent. Switching roms or radios doesn't seem to help, and obviously I can't odin a factory image. Pretty much boned.
Click to expand...
Click to collapse
I did the same mod, and other than losing my pc connection (which frankly is never needed) it's been great. You have to be very careful and take your time. I'm not even convinced that my pc connection issues are related to the Palm mod, I think they just happened to coincide. Either way, I don't need it so I never bothered tracing it down.

Tmobile Note 2 no network circle crossed out

Hi and thanks for any help that you can provide me.
I bought an Galaxy Note 2 SGH-T889 Tmobile version like 7 months ago from a store or reseller in Toronto Canada, the phone was in theory factory unlock, to use with the Wnmobile network which uses the same frequency as Tmobile. The phone was working until 2 days ago. Well always the phone has issue connecting to the network in some specific areas, specially because the Wind network it's not that good, but during the last 2 weeks I noticed more and more problems and some times it was just disconnected showing a circle with an slash or crossed out. After reboot the phone usually fixed the problem, until 2 days ago I had to do it every 2 hours and then the next day it just was permanent. I tried everything so far:
Remove battery and reboot
Remove battery and SIM card and reboot
Use a diiferent SIM card from my son's phone
Replace for a new SIM card
Clear Cache
Factory Reset
Reflash the modem with Odin
The phone has the latest stock ROM 4.1.2, BASE T889UVBMD1
The problem is Samsung say because it's a Tmobile they can not support it here, I have to send the phone to Samsung USA, I still fighting with the store because they said it will be covered locally, but that is another story.
I red many post talking about similar problems with the Galaxy S3 or S4 and one said that installing Jedi X14 fixed the problem, but to do that I think I have to root the phone, which not be a big problem.
The other weird thing is the phone works using other SIM card GSM, not tested with a LTE SIM.
There is any way to test if the radio/antenna for the WCMDA is disabled or broken
Thanks

fasterfoxy said:
Hi and thanks for any help that you can provide me.
I bought an Galaxy Note 2 SGH-T889 Tmobile version like 7 months ago from a store or reseller in Toronto Canada, the phone was in theory factory unlock, to use with the Wnmobile network which uses the same frequency as Tmobile. The phone was working until 2 days ago. Well always the phone has issue connecting to the network in some specific areas, specially because the Wind network it's not that good, but during the last 2 weeks I noticed more and more problems and some times it was just disconnected showing a circle with an slash or crossed out. After reboot the phone usually fixed the problem, until 2 days ago I had to do it every 2 hours and then the next day it just was permanent. I tried everything so far:
Remove battery and reboot
Remove battery and SIM card and reboot
Use a diiferent SIM card from my son's phone
Replace for a new SIM card
Clear Cache
Factory Reset
Reflash the modem with Odin
The phone has the latest stock ROM 4.1.2, BASE T889UVBMD1
The problem is Samsung say because it's a Tmobile they can not support it here, I have to send the phone to Samsung USA, I still fighting with the store because they said it will be covered locally, but that is another story.
I red many post talking about similar problems with the Galaxy S3 or S4 and one said that installing Jedi X14 fixed the problem, but to do that I think I have to root the phone, which not be a big problem.
The other weird thing is the phone works using other SIM card GSM, not tested with a LTE SIM.
There is any way to test if the radio/antenna for the WCMDA is disabled or broken
Thanks
Click to expand...
Click to collapse
If the phone is working fine with a friends sim card . There is nothing more then a issue with your sim. go to the store and have them to give you a new sim card or flash the one you have. I had that issue similar here with at&t all the time.. sims would just loose network.. The fix for me LEAVE AT&T
Good luck.

Yes, I replaced the SIM card and I got a new one.
Just trying to eliminate all the options, I just did a factory reset again, and put it back the SIM card, located outside in an area where I know there is a strong signal and the phone was able to connect to the network and I install the account ans the apps just to test the data connection and it works fine. I was outside for 20 minutes with no problem. Later go back in the building, as soon I was inside for a few minutes the phone lose connection and the circle is back, then reboot again several times, and the phone does not recognize any network, Searching and no network is available.

Aww you left out that it only does this inside but works outside.. I Would say something is blocking the signal. LIKE maybe the building..
i have two bars in my house 3 on the deck and full signal in my yard ...
its just how it is..

erica_renee said:
Aww you left out that it only does this inside but works outside.. I Would say something is blocking the signal. LIKE maybe the building..
i have two bars in my house 3 on the deck and full signal in my yard ...
its just how it is..
Click to expand...
Click to collapse
But he said it was working in side for many month then all a sudden it doesn't work? I understand I live in a mobile home and reception sucks but that from the start but his was working for couple months. I would say he's phone reception receiver w/e it is or something in the phone is screwing up and it will need repairment or replace or service just taking a dump and getting worse.

jcervantes11 said:
But he said it was working in side for many month then all a sudden it doesn't work? I understand I live in a mobile home and reception sucks but that from the start but his was working for couple months. I would say he's phone reception receiver w/e it is or something in the phone is screwing up and it will need repairment or replace or service just taking a dump and getting worse.
Click to expand...
Click to collapse
You could be right.. or maybe even the provider having issues with that tower .. its a tough thing to figure out..

Thanks for your ideas.
I get tired of trying to figure out was is the problem, so I got a SIM card from a diiferent provider which has the best network coverage and power, and i'ts happending the same, the majority of th etime the strength level is around -110 db even outside, with both providers, so it's the phone.
Now the question is could be possible that the antenna cable got disconnected or broken, (yes I dropped the phone a few times but nothing major) and it was working fine until few days ago. Another option it's some internal hardware is not working normally.
Now I have to find a way to repair becasue Samsung Canada does not want to do it becasue its a Tmobile phone.
Thanks, again.

fasterfoxy said:
Thanks for your ideas.
I get tired of trying to figure out was is the problem, so I got a SIM card from a diiferent provider which has the best network coverage and power, and i'ts happending the same, the majority of th etime the strength level is around -110 db even outside, with both providers, so it's the phone.
Now the question is could be possible that the antenna cable got disconnected or broken, (yes I dropped the phone a few times but nothing major) and it was working fine until few days ago. Another option it's some internal hardware is not working normally.
Now I have to find a way to repair becasue Samsung Canada does not want to do it becasue its a Tmobile phone.
Thanks, again.
Click to expand...
Click to collapse
Anybody with same provider as you? Invite them in you're home see if they have connection. It's best if the person have same phone and same company. Can you send directly to Samsung? I have bad phone service my area with s2 and note 2 but my friend with evo 3d has more bar then me and its made by htc but could be two things ur phone crapping out on you which need repairment or like the guy above said tower signal getting weaker. It is hard to find out. Maybe for now for a bit since it's screw up try a rom but then again rom doesn't control radio settings section but wouldn't harm. Good luck.

I'm having the same issue since last month... but with any SIM card.
The network signal strengh rests between -89 to -110 dBm. (Horrible)
The network type is always UNKNOWN:0.
What I already tried:
- Using other SIM.
- Flashing Stock ROM
- Flashing Custom ROM (CM 10.1)
- Flashing all 5 avaliable modems.
What happens:
When I get VERY close to a network antenna... I can make calls and stuff...
What can be happening:
Hardware issues - T-Mobile latest LTE unlocking update maybe burned my antenna (or some network signal related hardware).
Software issues - Can't see how since I used many variations of ROM/Modem.
I live in Brazil and my network is TIM 47. I have a Samsung Galaxy Note II T889.
If anyone can confirm perfectly to me what composes the T889 antenna components... that would be nice...
I want to buy those parts from eBay and trying fixing my phone.

Thanks for your feedback it's really valuable becasue it's almost the same situation. Today I cleared up the situation with Samsung, if I want to be service under the warranty I have to bring the phone to one of repair centres in USA which it's kind of problem because I can do it only in the weekends but not impossible or what I'm doing tomorrow is to have an assessment by one of the repair centres in Toronto and I have to pay in this case, if it's something reasonable.
In my case I did not update the phone in 2 months at least so it's not software in my case, but one difference could be I got a new job 3 months ago, in my previous job the majority of the time I got 5 bars , I guess the cell tower was close to that place, and in my house the coverage it's good. In my new job, my office it's in the middle of the building, far from the windows, so the signal always was really bad, 0-1 bar.
Wondering if could be possible that a bad connection can burn the antenna or the circuit that controls the connection.
The other thing is there are many customers specially for the Galay S4 complaining about a similar problem, and I did not find any answer on how to fix this problem.
I'll post any update just in case it can help someone else.
Thanks.

Did you try to disable lte and use 4g/3g/2g only?
Sent from my SGH-T889 using xda app-developers app

darekz said:
Did you try to disable lte and use 4g/3g/2g only?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
Well... I did... and the problem persists.

Try to enable and disable wifi calling.
Sent from my SGH-T889 using xda app-developers app

A also have this problem with T-Mobile Note 2 and have already tried everything you guys have...I guess I got no choice but to request a replacement which sucks because my phone was pristine and worked perfectly otherwise. It's just the damn weak to no signal that's driving me crazy. Especially since I'm paying for premium data coverage and it's pretty much money in the trash every month.

That's it. I made the call and the replacement arrives in a couple days. They offered me the "jump" program. Anyone on that? Is that worth doing on T-Mobile?

I traded an unlocked i317m for a g pro. I just picked up a unlocked t889 as welll. The person with my old i317m want my t889 since hes using simple mobile. Problem is when I went to trade I put his sim in my t899 it wont register on tmobile. Seems its only working with at&t as thats the service I have. Now with the i317m I gave him originally it works with any sim. How is this possible that a unlocked tmobile t889 wont register with his sim on tmobile network but the unlocked i317m works with any sim?

Yesterday I replaced the microUSB module that is connected with the antenna and replaced the SIM card module too.
That did NOT worked.
So... the problems is problably on the mainboard/chipset... too expensive to fix.
Another big hardware failure for Samsung's history.

I've had the replacement for about a week now. So far no signal problems. It's like when I first got my original phone. I'm sticking with the note 2 for at least another 6 months since I joined the jump program. Can't wait to see the note 3 next week

Update just to close this case
Well, after I sent the phone for repair to Samsung USA, I got it back and the problems happened again after a few days, then I sent it back for the second time to Samsung, got it back and the problem happened again after a few weeks. Basically, I'm getting rid of this phone, now the warranty is already expired and half of the time the phone was full of problems with the network.
The lesson in this case is to avoid getting hardware from the first batch (to wait a few months after the launch) or without a long term warranty (3 years), and probably will be my last Samsung device.
:crying:

Diesel-30 said:
Can't wait to see the note 3 next week
Click to expand...
Click to collapse
You mean Note 4, no?

Radio issues

Is anyone else having radio issues with their G-pro? AT&T model here and have been having very obnoxious issues with this device. I'm familiar with the common issues of losing 3g or 4g data while in buildings and such and have always had issues with my phones while in buildings but this phone is by far the worst so far. I'm not sure if it is only a network issue or this specific phone but I can barely get it to send and receive sms inside my house. MMS, forget about it. Calls get dropped immediately when I try to make them at home, etc... Last night I was driving home and on a phone call. Over the course of the 3 hour drive I got dropped at least a dozen times. I've never had these issues with a phone. Any suggestions? Should I try to get a warranty replacement or is this normal?

Could it be your SIM card? I have only had my phone for a week and haven't had problems getting a signal. However, on my old Galaxy Note, I had a similar issue and the SIM was to blame. Have you tried turning your phone off, taking out the SIM and reinserting it to make sure it's in there fully? You could also try cleaning the contacts (the gold part on the back of the SIM).
BTW...was reading your signature and had to LOL at the part about the Nokia Lumia. I tried a Lumia and only made it a month before Android withdrawals set in--so I sold it to help pay for my OG Pro.

Haha, yeah. I liked a lot about the Windows phone but just couldn't stick with it. I'm Android through and through!!!
I'll give that a shot or maybe get into the store and get a new SIM card today. Thanks for the suggestion!

Anyone....anyone...? Bueller....Bueller...?
Swapped the SIM and didn't fix anything. Wondering if it is an issue with the phone itself.

Cellular radio problem

My note 2 shows no bars with a good sim card installed.
and has no service what soevevr.I was thinking its the
radio.but when I remove sim it shows signal and can make an emergency call.
Im stumped.I even Odonda back to stock no help.
any ideas before I start replacing hardware.
iv tried other sim out friends phone and using my sim in backup phone.
Warranty is expired.any help please

Maybe apn needs to be set up??? [emoji782]
Not sure what happen to your phone but from your explanation points to your apn!!
Sent from my T889 using Forum Runner

Bajanman said:
Maybe apn needs to be set up??? [emoji782]
Not sure what happen to your phone but from your explanation points to your apn!!
Sent from my T889 using Forum Runner
Click to expand...
Click to collapse
Ya I checked that its same as my buddy note 2to same carrier. AT&T

Weird! I've been having the same issue lately.
In my case, cellular reception became spotty (completely losing connectivity in areas where I'd never previously had issues in my two years with this phone), and then cut out permanently after I dropped the phone fairly hard. I replaced the antenna (not an easy part to acquire, as I went through three ebay auctions before someone finally sold me the correct part) and it was spotty again for about a week before completely dying out again. I started using a backup phone out of frustration before finding another fully functional SGH-i317 for sale on the cheap, and I ended up combining the parts from the two to make a working phone. One day in, and the only issue is that the phone fails to regain cellular connectivity after leaving a dead zone (a few resets have so far done the trick)
Anyway, I'm far from an expert on this, but just to get the conversation going, here are some things I noticed:
Both my original Note II as well as the used one I purchased are 16 Gb SGH-i317 (AT&T GSM) models stamped N7105 under the Samsung sticker in the battery bay. Both used the OEM blue antenna wire (some Note II variants apparently use white wires of the same length), and the smaller boards at the bottoms of the phones which the antenna plugs into (with the charger port attached) are stamped SGH-i317 rev0.7 R.C94(KH) 25. The only difference I've noticed is that the new model is stamped "LTE #1" on the bezel underneath the motherboard whereas my old one was stamped with a different number (which of course I can't remember now that I've reassembled it)
Not sure if any of these weird little specifics will help anyone else who is having the issue, but I figured I'd put it out there just in case.
For the record, I'm in the same boat as OP after having reset/restored a few times. I also hadn't installed anything new/ominous or modified anything prior to the issue occurring originally.

Thank you.I also read in another thread that the modem drier may be corrupted. So the phone can not communicate width modem.

rexamillion59 said:
Thank you.I also read in another thread that the modem drier may be corrupted. So the phone can not communicate width modem.
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One other thing if there's a place you can take it to and have them check the sim tray?? Might be a possible fix??
Sent from my T889 using Forum Runner

I would flash the current AT&T modem, then use a few APN'S until you find the best for your area.

Iv been trying the different modems and apns.no luck so far.
Im going to do as Benjamin said and have sim slot checked.
Although it seem it is working because.it shows son when installed.
And nothing when out

You don't mention flashing any custom roms or updates, but assuming you have, the best way to troubleshoot your phone would be to return your phone all the way back to stock. This strategy has cured baseband, gps, headphone issues etc.

Lost Cell Signal after replacing charging port connector.
I have a SGH-i317 NOTE 2 and am experiencing the same issue after replacing the charging port connector.
does anyone know if the charging port connector is related to cell phone signal strength? After replacing this part, i cannot even get a signal indoors and only a weak signal outdoors.
careet said:
Weird! I've been having the same issue lately.
In my case, cellular reception became spotty (completely losing connectivity in areas where I'd never previously had issues in my two years with this phone), and then cut out permanently after I dropped the phone fairly hard. I replaced the antenna (not an easy part to acquire, as I went through three ebay auctions before someone finally sold me the correct part) and it was spotty again for about a week before completely dying out again. I started using a backup phone out of frustration before finding another fully functional SGH-i317 for sale on the cheap, and I ended up combining the parts from the two to make a working phone. One day in, and the only issue is that the phone fails to regain cellular connectivity after leaving a dead zone (a few resets have so far done the trick)
Anyway, I'm far from an expert on this, but just to get the conversation going, here are some things I noticed:
Both my original Note II as well as the used one I purchased are 16 Gb SGH-i317 (AT&T GSM) models stamped N7105 under the Samsung sticker in the battery bay. Both used the OEM blue antenna wire (some Note II variants apparently use white wires of the same length), and the smaller boards at the bottoms of the phones which the antenna plugs into (with the charger port attached) are stamped SGH-i317 rev0.7 R.C94(KH) 25. The only difference I've noticed is that the new model is stamped "LTE #1" on the bezel underneath the motherboard whereas my old one was stamped with a different number (which of course I can't remember now that I've reassembled it)
Not sure if any of these weird little specifics will help anyone else who is having the issue, but I figured I'd put it out there just in case.
For the record, I'm in the same boat as OP after having reset/restored a few times. I also hadn't installed anything new/ominous or modified anything prior to the issue occurring originally.
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