No Signal Issues - Nexus 4 Q&A, Help & Troubleshooting

New phone, everything was good now no cell signal at all. I was rooted w/ CM and cell signal went completely away almost like the SIM card is bad. SIM is 2 days old and was cut at the TMO store. I went back to stock JB Occam firmware and that did not help. The kicker, Sim works in my GNex w/ adapter so could be contacts in the G$? Anyone else have similar issue.

On my HTC rezound I get low signal and my 3g cuts out a lot toggling airplane mode does nothing and I'm using cm9 also cm9 messed up my Bluetooth. I'm trying to fix these issues but I've had no luck.
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I was hoping the tower nearby went down and that it would function when I got to work. Still doesn't work on the N4, works on the Gnex. Looks like it's going back to the Google Ship.

Related

4g not working ?

Ok so I just have a quick qustion and I have searched but can't find an answer. I think my 4g radio may be broken because when I try and turn it on it sits for a minute then says unknown and turns back off. The coverage map shows me having 4g in my area but it could be wrong. It seems to me that I should be able to turn on the 4g radio and it will be on and regardless of signal and will keep searching for a signal but I've never actually had a working 4g connection so I don't know if this is regular behavior or if my 4g is defective and I need to get a replacement.
Sent from my SPH-D700 using Tapatalk
try reflashing to a stock rom,either dg27 or di18...i had this issue with my first epic,then di18 was updated on my phone and my 4g didnt work,quite a few of us had this problem.i just returned mine in and showed sprint that it was a hardware/software defect on their side.hope this helps
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Just wanted to update incase anyone else has this problem. I tried flashing back to complete stock di18 but still no 4g so I took it in to sprint where they just did a data reset and then sat there scratching there heads when it still didn't work, they were absolutely no help and at the end they pretty much told me I could buy a new phone or live with it. So took it back to radio shack where I bought the phone and the replaced it no problem. Now my 4g radio works great and I even have coverage in my erea B-)
Thank you for your advise
Sent from my SPH-D700 using Tapatalk

NS4G(Sprint) 4.0.4 data issues?

Ever since I flashed the latest (un)official 4.0.4 deodexed/rooted leak along with the new radio I've been having a hard time keeping a data coverage. It keeps switching to 1x Edge coverage or losing signal period. Its particularly obvious in areas(like at work) where I usually have 4 bars of 3g. The only fix I've found is to switch to airplane mode and then back, or to reboot the phone. Is anyone else having problems like this with either the official OTA or the (un)official rooted leak?
Sent from my Nexus S 4G using Tapatalk
Sprint issues maybe?
Sent from my Nexus S 4G using Tapatalk 2 Beta-5
I had issues earlier when I first flashed the radio.
I tried doing a profile/prl reset/update and everything seems back to normal now.
I tried prl and profile and it worked for an hour or so... Its been like that since the day the rom was leaked. An hour ago I wiped my cache and dalvik cache and flashed the new air kernel and so far so good Maybe I just had something goofy in my cache? I'll check back tomorrow, maybe it was just operator error somewhere along the way
Sent from my Nexus S 4G using Tapatalk
I had the exact same issues
What helped me? Fastboot flashing previous radio. I guess it's coverage in my area? But I took the leaked ROM plus radio and flashed all the img's through fastboot and after a day or so I would get stuck in 1x. Like you, I usually got 3G.
I'm on the previous radio now and the problem went away
Sent from my Nexus S 4G using Tapatalk 2 Beta-6
On thursday and friday i had no data at my desk at work, today i'm fine. I didn't change anything, didn't even wipe cache. Pretty sure it's sprint.
Also, if I left my desk and walked two streets over, it worked great.
Before 4.0.4 I think there was a hack on stock GB roms that the phone wouldn't show when it entered 1x. It was pretty obvious with the slowdown, but the indicator never showed it. With 4.0.4 I believe that hack is now gone and it really does show 1x vs 3G in the situations it's happening in.
This is happening to me. I have tried all of the radios. My wife's evo 3d has full 3g right next to my phone.
I have full wiped reflashed and tried all the radios.
Nothing seems to work.
Sent from my Nexus S 4G using XDA
i got a older EVO jus to check
and because curiosity was killin me
the HTC has a good radio
both my ns4g's
leave a lot to be desired
fwiw
Anybody get this fixed? I'm still in and out of 1x.
Sent from my Nexus S 4G using XDA
If you know your MSL, you might try dialing *#*#72786#*#* for a fresh activation. It's helped me in the past after flashing radios.
Tried everything. Finally took the phone to sprint. They said it there was a problem. Paid $35 for a replacement.
Sent from my Nexus S 4G using XDA

[Q] Antenna Drop, Edge Only, Tmo

I have not had any issues that i've seen other have on the forums but there is one issue i am having...
After the first few hours of use the antenna has either cut out completely and I see "no service" or only Edge is available.
Rebooting + open/close sim tray does not fix the problem. I am on T-Mobile.
I had to call in and have them "reset" the data on my line in order the get h+ speeds again. Also my buddy said they told him the Sim card that came with the phone, if from t mobile, could be a different type and if I keep getting issues they recommended to go into the store and request a new one. He also is having terrible speeds on t mobile. We are both seeing about 600kbs down and 1000kbs upload speeds. Used to be much better with my galaxy nexus....so I will check with them tomorrow again
Sent from my Nexus 4 using xda app-developers app
I have a similar problem but for me the H icon never goes away. It works for a good time but then all of a sudden it doesn't load anything. It comes and goes and it's really annoying.
Did you guys cut your sim card into micro or is it a real micro sim card?
My reception is pretty poor. It drops pretty randomly at times which can be frustrating, something that my Galaxy Nexus never did. I typically only see 2G speeds though due to my area.
Sent from my Nexus 10 using xda app-developers app
I cut my Sim and having the same issue... Guess I have to get a real micro sim
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I am using a microsim ... the one that came with the phone since I purchased through T-Mobile online.
I think it is the sim card because it looks like there are scratches on it after I had swaped it back to my vibrant with a microsim adapter.
I will go to the store today when they open and get a new sim. Hopefully this will fix this issue. It was working perfectly fine earlier.
My N4 is dropping calls and losing network connection like crazy. I'm using the same Sim that was in my SIII. It had no such issues.
Sent from my Nexus 4 using xda app-developers app
I haven't had your problem, but I did cut my SIM to a microSIM, and the first 2 times I put it in, the N4 would not recognize it. Since then, I've put it in 2 more times and it's been fine. Did you cut your SIM into a microSIM? Maybe the phone is extra picky about placement.
SOLVED
Got a new MicroSIM and It works perfectly. My original microSIM did get scratched too hard when using a MicroSim to SIM adapter (i was testing the microsim on my old phone)
I'm happy now
javacody said:
My N4 is dropping calls and losing network connection like crazy. I'm using the same Sim that was in my SIII. It had no such issues.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Did you set up your APNs?
Robert_W said:
Got a new MicroSIM and It works perfectly. My original microSIM did get scratched too hard when using a MicroSim to SIM adapter (i was testing the microsim on my old phone)
I'm happy now
Click to expand...
Click to collapse
NVM. Same b.s just happened again with the new sim. Idk whats going on here. The antenna is randomly choosing to be on HSPA, EDGE, or nothing... I'll wait it out for a day or two.. see if things change
Why would I have to?
Sent from my Nexus 4 using xda app-developers app
EDIT:
called up. they did a reser on their end. didnt work. They will call me when the Nexus4 becomes available again. Mine is labelled as "defective" in the system
Robert_W said:
called up. they did a reser on their end. didnt work. I am now getting a new one now.... waiting on hold listining to christmas music
Click to expand...
Click to collapse
Let us know how it goes ,
this issue is very frustrating.
Sent from my Nexus 4 using xda app-developers app
Ugh. That sucks. Sorry to hear.
what really sucks is that I dont have any other issues with it. Every problem that i see on the forums is not existant on my nexus. I am scared that if it ever gets replaced that the new one may not be as perfect as this one is
I'm Having the exact same problem, except on AT&T. Coming from an Atrix 4G, cut the sim down to micro size, only had a network connection for the first 30 seconds after a reboot. I just got off the phone with a AT&T CSR to activate a new micro sim i picked up earlier today, he said IMEI showed up in their system as Unknown, according to him because "it's an unlocked device, so it shows up on our systems as unknown." After doing the switch anyway, connection held for about 5 minutes, and now i'm back to square one. Maybe APN settings? Is this a problem with the N4, or the service?
Absent Crysis said:
I'm Having the exact same problem, except on AT&T. Coming from an Atrix 4G, cut the sim down to micro size, only had a network connection for the first 30 seconds after a reboot. I just got off the phone with a AT&T CSR to activate a new micro sim i picked up earlier today, he said IMEI showed up in their system as Unknown, according to him because "it's an unlocked device, so it shows up on our systems as unknown." After doing the switch anyway, connection held for about 5 minutes, and now i'm back to square one. Maybe APN settings? Is this a problem with the N4, or the service?
Click to expand...
Click to collapse
I would think it may be an issue with the N4 since some people are perfectly fine with their connection, but then there's others like us who can't get it too work all the time =(
i think its a manufacturing defect
I'm thinking definitely manufacturing defect now, I went into a t-mobile store and tried one of their sim cards - same result. I even tried flashing everything completely back to stock, but the problem remains. Am I the only one experiencing this? I can't find any similar results..
EDIT: You guys think I should hold off on sending it back in until they have more in stock? So I'm not completely N4-less for 3 weeks?

Signal strength on my new Note 3..

Does anyone have a problem with their signal strength....mine will show 4g in an LTE area....it will switch back and forth from LTE to 4g constantly...sometimes the signal strength would be so low, that web pages wont even open for a min or two....I am using a sim adapter to use my sim card from my iphone 5, instead of using the new sim....I switch back and forth between my iphone and note, so I don't want to use another sim...does that cause problems?
Are you in Australia?
Sent from my GT-N7105T using Tapatalk now Free
My note 3's signal is stronger than original note.
Sent from my SM-N9000Q using Tapatalk now Free
I was getting great 4G connection before this last update and now it's using the highest signal like 2g most of the time.
Sent from my SM-N9005 using XDA Premium 4 mobile app
Mine is rubbish
Well the actual signal strength is fine when its working, but it has real trouble re-connecting to my network (3, UK) after going out of range.
It sits on the 'emergency calls only' mode for ages, and requires a reboot, after which it immediately connects to my correct network.
Its made slightly better by manually selecting '3' as the network operator, but I have to reboot several times a day to keep connected.
Im planning on going to Car Phone Warehouse tomorrow for a chat about it...
George
ripnetuk: Just as a suggestion:
My NexusS tends to not to reestablish the data connection after a weak signal period. I can fix that by switching to airplane mode and back. (Rebooting takes ages with that phone).
Hi,
Id established that sometimes putting airplane mode on and off fixes it, but it often didnt. A reboot /always/ reconnected to the three network.
I took it back today, and Carphonewarehouse swapped it for a new unit, no questions asked, so im gonna give it a go for a while before thinking its fixed.
I did get my highest ever speed test result with the new phone tho - over 15 megs... ive never seen over 12 before, so hopefully its got a good antenna on it
g
Swapped for another unit and it's all working properly now so it was a lemon device causing it..
Phew!
Sent from my SM-N9005 using xda app-developers app
I compared reception and signal between my Note 3 and HTC ONE in Hong Kong. I found that the HTC ONE and the older LTE Model of the Note 2 got better reception/signal when compared to my new Samsung Note 3
How long did you have your phone before you changed it for a new one?
I am having the same problem as well, also having camera troubles as well... Sounds like I have a lemon as well..
coolfreebies
Sent from my iPad using Tapatalk - now Free
about 15 days...
Sent from my SM-N9005 using xda app-developers app

LTE Problem

Ever since I took OTA update I cannot get the LTE to stay locked on it keeps going back to 3g. My wife has the same phone and hers stays in LTE. So I know it isn't the towers. She took the OTA update also. The only difference is mine is rooted on the new KK. Anyone else have that problem? Sorry I'm on Verizon Network VS980 4gG LTE
Well I downgraded back to Jelly Bean VS98012B and stayed stock without root and still have the same problem with LTE. I switched Airplane mode off and then back on and I get LTE with 2 bars then it goes back to 3g with 2 bars. I wonder if its the phone or if I am being throttled by Verizon?
Well I seem to be answering my own questions. Turns out my sim card is bad. I tried my wife's and the phone went to LTE and stayed. I put mine in her phone and it stayed 3g. So hope this helps anyone else that would experience this. Glad its not the phone.
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dkahs23 said:
Well I seem to be answering my own questions. Turns out my sim card is bad. I tried my wife's and the phone went to LTE and stayed. I put mine in her phone and it stayed 3g. So hope this helps anyone else that would experience this. Glad its not the phone.
Sent from my Xoom using XDA Premium HD app
Click to expand...
Click to collapse
I'm actually having the same thing... keeps switching to 3G randomly, after a reboot it'll go to 4G LTE and usually stay, but often if I make a call, or do something it'll switch back to 3G for some time, then maybe go back to 4G... stock KK rooted here too
Did the SIM card fix it for you permanently? I may try getting a new one if so.
I'll second this. Had the same problem. New sim card and bam, fixed. For some reason I think going to international ROMs (cloudy and optimus) caused this.... The 3g roaming thing.. which is a shame because their ROMs are freaking awesome.
Sent from my VS980 4G using Tapatalk
braxync said:
I'm actually having the same thing... keeps switching to 3G randomly, after a reboot it'll go to 4G LTE and usually stay, but often if I make a call, or do something it'll switch back to 3G for some time, then maybe go back to 4G... stock KK rooted here too
Did the SIM card fix it for you permanently? I may try getting a new one if so.
Click to expand...
Click to collapse
Yeah I went to my local mom & pop Verizon store and the idiot behind the counter said my old LTE sim card wasn't NFC ( Near Field Communications) complaint. Why is he an idiot that's another story. But I don't know how NFC has anything to do with the sim card. Anyway I bought a new one because they weren't a official Verizon store, supposedly the official store will give you a new sim card. But now the phone works like it is suppose too.
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