Develop Bugs

GSM full bars greyed out with no connection

Hey guys I've got the GSM version and every now and then my signal bars turn grey, this is with full signal even showing 3g buts its grey and won't call out or load data. I'm not a twit and understand that phones loose signal its just strange it comes back randomly also. Very annoying.
I'm on 4.0.1 Google build anyone else get this issue?
Sent from my Galaxy Nexus using xda premium

grey full bars
i dont have a technical response to this question other than i only notice this during times of transition between either booting up the phone or switching to wifi on or off equally.
The phone usually checks to sync when it has been on standby and you then hit the power button. If you theoretically switch between wifi and 3g/4g during this time it would force a transition which could yield a situation as you describe.

This happens to me too sometimes. What network do you have?

NIK516 said:
Hey guys I've got the GSM version and every now and then my signal bars turn grey, this is with full signal even showing 3g buts its grey and won't call out or load data. I'm not a twit and understand that phones loose signal its just strange it comes back randomly also. Very annoying.
I'm on 4.0.1 Google build anyone else get this issue?
Click to expand...
Click to collapse
You have to find out the true reason why your connection is being interrupted. The bars going grey instead of blue is just reflecting the fact that your connection isn't persistent and you don't have a full sync with Google.

Blue bars = connection to Google servers
Grey bars = no Google servers

NIK516 said:
Hey guys I've got the GSM version and every now and then my signal bars turn grey, this is with full signal even showing 3g buts its grey and won't call out or load data. I'm not a twit and understand that phones loose signal its just strange it comes back randomly also. Very annoying.
I'm on 4.0.1 Google build anyone else get this issue?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
When you open the browser does it say that there is no network coverage and you have to turn off the airplane mode?

I was having the same issue with 4.0.1, I was getting disconnect from the mobile network almost every 2-3 hours and the only way to get online again was to do a reset. But now with 4.0.2 everything seems to work fine.
My carrier (Simyo in Spain) is a "virtual operator" (MVNO), so I'm thinking that the issue was somehow related with the “data was disconnected due to roaming” bug in 4.0.1.

Been having same issues on Wifi and 3g, causes huge issues with push gmail
Edit: I removed dns changer from my phone, and seems to be helping
Sent from my Galaxy Nexus using XDA App

menek said:
I was having the same issue with 4.0.1, I was getting disconnect from the mobile network almost every 2-3 hours and the only way to get online again was to do a reset. But now with 4.0.2 everything seems to work fine.
My carrier (Simyo in Spain) is a "virtual operator" (MVNO), so I'm thinking that the issue was somehow related with the “data was disconnected due to roaming” bug in 4.0.1.
Click to expand...
Click to collapse
Thanks Menek, I am still on 4.0.1. Hopefully soon I will get an OTA update.

Hello,
This thread kind of died down but it is very important. Here is the issue logged by other users with Google. http://code.google.com/p/android/issues/detail?id=22503
Has anybody managed to find a fix?
I called Samsung yesterday and they advised me to return the phone. I don't feel like being without a phone for 2 weeks. Besides it is sort of proven that it is a Rom issue (am I correct?). What do you say guys, shall i send it to Samsung or wait for an update from Google? The problem doesn't happen very often, every once in a while. I suppose this is why the battery runs out pretty quickly as it tries to connect to a network too often. And when it doesn't establish connection it goes to Airplane mode.
Any more comments on this issue?

Radios Dropping

Anyone have an issue with their phone randomly dropping Wifi/Cell connections? Sometimes it doesn't happen for a day or two sometimes it happens 3 times in 5 minutes.
Starting to think my phone is defective...

If you are on a custom rom try going back to stock and see if it's the same. If stock try to update profile
Sent from my t0ltespr

epicnoob66 said:
If you are on a custom rom try going back to stock and see if it's the same. If stock try to update profile
Sent from my t0ltespr
Click to expand...
Click to collapse
I've tried that and it's still dropping... Would PRL/Profile also effect my Wifi connection? All data connections drop.

chunology said:
I've tried that and it's still dropping... Would PRL/Profile also effect my Wifi connection? All data connections drop.
Click to expand...
Click to collapse
I'm having the same issue with Wifi. It'll still show as being "connected", but there won't be any data coming through. I'll have to toggle Wifi on/off to get it back. Sometimes it'll work for a couple of hours before having the data issue again, sometimes less than a minute.
I'm on stock, rooted.

Turn off the connections optimizer :banghead:
Sent from my SPH-L900 using xda premium

fatboypup said:
Turn off the connections optimizer :banghead:
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
Connections optimizer has been turned off AND frozen using TiB from day one. So that's obviously not it.

fatboypup said:
Turn off the connections optimizer :banghead:
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
enormous said:
Connections optimizer has been turned off AND frozen using TiB from day one. So that's obviously not it.
Click to expand...
Click to collapse
Connections optimizer is off for me too - My phone shows a clear signal disconnect and reconnect (The wifi bars/3g symbol disappears completely) during this time all data connections fails - including texts. This is happening when I'm staying in one area so it couldn't be a tower reconnection issue.
I'm going to try taking my phone into a sprint store today to see what they say.

chunology said:
Connections optimizer is off for me too - My phone shows a clear signal disconnect and reconnect (The wifi bars/3g symbol disappears completely) during this time all data connections fails - including texts. This is happening when I'm staying in one area so it couldn't be a tower reconnection issue.
I'm going to try taking my phone into a sprint store today to see what they say.
Click to expand...
Click to collapse
Ah, it sounds like our issues may be different then. My issue is solely with Wi-Fi (haven't noticed issues with 3G). When it happens for me the Wi-Fi icon in the status bar doesn't change, I just can't connect to anything.
Sent from my SPH-L900 using Tapatalk 2

enormous said:
Ah, it sounds like our issues may be different then. My issue is solely with Wi-Fi (haven't noticed issues with 3G). When it happens for me the Wi-Fi icon in the status bar doesn't change, I just can't connect to anything.
Sent from my SPH-L900 using Tapatalk 2
Click to expand...
Click to collapse
Yup, same here. Seems like the 3G radio does the same thing, but not necessarily at the same time as the WIFI. At first I thought is was only the WIFI too, but 3G is affected, though not to as severe a degree. My WIFI was actually disconnecting and failing to reconnect. Turning off connection manager made no difference. I did however notice that the WIFI at my work (WEP encryption) never seemed to do this (at least I didn't notice), so I changed my home network WPA to WEP and sure enough, it stays connected. Was still failing to load occasionally, so I went even further and changed the router to a single channel rather than "Auto" and set it to "N Only" (due to having a similar problem with a laptop I used to have, with a similar solution). Problem fixed. I'm using an Amped R10000 just FYI, not sure if it matters. Very annoying, and given the number of occurances being sufficient to start a thread, I'm assuming this is a common issue and will hopefully be fixed by a firmware update. In the meantime, we should probably all start calling Sprint daily and complaining. Maybe they're not even aware of it. Probably not enough of these phones in circulation yet for them to worry about it.

Mine will do this from time to time. Stock not rooted. I will have full 3g bars and full wifi bars and my data will just hang. If I turn off wifi everything works again. Some times when I load a game that has to connect to Facebook to play against friends I have to close the app/game, remove it from memory and reload it to get the data to work. Same thing for Pandora. It will load a song to 2% and hang until I stop wifi or reboot the phone. It's not an everyday thing but some days are worse then others.
Sent from my SPH-L900 using XDA Premium HD app

"Good to see" from the perspective I thought it was just me. Things described by others happening to me as well. Personally, I find I like the wifi/3g auto connectivity feature - when it works. Got my SGNII on Thurs last week, and connected to wifi at work on Friday no issues. This morning, the Note picked up my work wifi without a hitch.
At home, over the weekend, I was getting spotty connection, sometimes no connection to my wifi. (Disclaimer - I have my main wifi @ N/5ghz. An access point was added with wireless G via an old Netgear router-turned-AP.) After several attempts of moving the AP from one cat6 jack to another, I finally moved it to my main level. Oddly enough, so far, so good. Certainly possible the router's radio is pooping out.
What I notice happen with connection issues though seem related to the Note seeing my wireless G, trying to connect, but unable to do so until/unless I reboot my phone. After moving to the new location/jack, everything seems to work OK now (knock on wood).
Having said that... I also think the 3g radio (HW or SW?) is a bit wonky, as my old HTC Hero seemed to have more bars at home, IIRC. Whatever it is, just seems a bit lacking, IMHO.

Sprint is updating to LTE in many markets ive noticed my 3G drops says preparing networks and reestablishes the connection to 3G. I live in Fort Wayne and issue the permits for the tower co-locates and they are close to going live with LTE here so I know thats my problem. I can live with the flakiness for a few more days. I have not had issues with WIFI drops at home.
Sent from my SPH-L900 using xda app-developers app

The same thing has been happening to me here on Long Island. 3g drops and reconnects. Sometimes it doesn't and a reboot fixes it. I also notice after the disconnect and reconnect it states my PRL is unknown. I have done a PRL update many times, a Profile Update, a RTN reset, and a factory reset. This happens on the stock rom and any custom ROM. It's driving me insane!

hmm maybe mobile settings?
Ive found LTE/CDMA setting to be not so good.
Its providing me eHRPD signal which is stop and go web browsing is murder.
CDMA only setting is providing Rev A signal fast web browsing

Sigh, so it seems as if you guys are losing wifi/3g....is it affecting voice radios or LOS/dropped calls?

sledgie said:
Sigh, so it seems as if you guys are losing wifi/3g....is it affecting voice radios or LOS/dropped calls?
Click to expand...
Click to collapse
I haven't been on the phone when it's happened so I couldn't tell you - Nothing like the LOS on the E4GT. When the data connection does cut out it immediately reconnects. Doesn't really impair the functionality of the phone but it happens enough to be annoying. With a 300$ price tag I expect my device to be without defect.

sling said:
hmm maybe mobile settings?
Ive found LTE/CDMA setting to be not so good.
Its providing me eHRPD signal which is stop and go web browsing is murder.
CDMA only setting is providing Rev A signal fast web browsing
Click to expand...
Click to collapse
This ^, I have been having lots of problems with the Note 2 and connectivity. Especially with my airvana. Changing from LTE/CDMA to CDMA fixed all my problems including the random drop/reconnects with WiFi.

sledgie said:
Sigh, so it seems as if you guys are losing wifi/3g....is it affecting voice radios or LOS/dropped calls?
Click to expand...
Click to collapse
I'm not having LOS /dropped calls just data creep with LTE/Cdma setting enabled.
Speed test show same data speed numbers as CDMA only setting but when browsing data arrows tend to pause more making for slower page upload with LTE/CDMA setting enabled.
According to Sprint store tech such performance is common with that setting.

sling said:
hmm maybe mobile settings?
Ive found LTE/CDMA setting to be not so good.
Its providing me eHRPD signal which is stop and go web browsing is murder.
CDMA only setting is providing Rev A signal fast web browsing
Click to expand...
Click to collapse
I am on CDMA only. I should have mentioned that in my first post. This does affect phone calls too as ill be on the phone and the call will drop and the "out of service area" message comes up. It doesnt matter if I'm on my Airave or not. I tried different prls which doesn't seem to make a difference. I am starting to think there is something wrong with the phone as my girlfriends S3 doesn't do this. Maybe Samsung will release some sort of update to fix this issue.

Flak said:
This ^, I have been having lots of problems with the Note 2 and connectivity. Especially with my airvana. Changing from LTE/CDMA to CDMA fixed all my problems including the random drop/reconnects with WiFi.
Click to expand...
Click to collapse
I made the change back to CDMA only mode this morning and it has solved my WiFi issues as well. I was also struggling getting a GPS lock with LTE enabled. GPS toolkit would show 20/21 satellites found but it would never get a lock. After the reboot back into CDMA mode it locked in 5 seconds.
Sent from my SPH-L900 using Tapatalk 2

Note II drops WIFI Calling??

Hey I'm a 1st to T-Mobile i'm testing it out before I switch all my lines from Verizon. The question I have is that both the Note II and the GS3 that I have seem to drop the Wifi calling feature randomly. I thought at 1st it may have been some sort of power saving option but it seems to happen in frequently. (Doesnt matter if I'm close to the Router or not)
Is this common? Or am I the only one that has had this happen?
Thanks for any input!
-Scoob

Mine does the same thing I just turned off the wi fi calling app and it now works fine
Sent from my SGH-T889 using xda app-developers app

somethinboutpat said:
Mine does the same thing I just turned off the wi fi calling app and it now works fine
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
I'm not sure what you mean by turning the App off? When turning the WIFI calling app off does that not mean you are unable to use the feature?? LOL- I have to have this as I have zero reception at my home.
Thanks for letting me know!
-Scoob

scooby-snack said:
Hey I'm a 1st to T-Mobile i'm testing it out before I switch all my lines from Verizon. The question I have is that both the Note II and the GS3 that I have seem to drop the Wifi calling feature randomly. I thought at 1st it may have been some sort of power saving option but it seems to happen in frequently. (Doesnt matter if I'm close to the Router or not)
Is this common? Or am I the only one that has had this happen?
Thanks for any input!
-Scoob
Click to expand...
Click to collapse
Same here
Sent from my SGH-T889 using xda app-developers app

This is happening to me as well.

@ scoob go to setting, more setting, deselect the wifi calling app and it should work for you my coverage at my place is between 0 and 1 bar so this should help
Sent from my SGH-T889 using xda app-developers app

mine goes on and off on both my new note 2 and my wife's new galaxy s3. really aggravating. worse on my phone, when in wifi calling, it only answered calls like 1 out of every 10 times, otherwise they went to voicemail. I took the sim out of mine, then put it back in and pushed it in and out and in the holder a few times and now it seems to receive calls in wifi mode but still always in and out and error to connect and such.

My experience with Wifi-Calling has been nothing but troublesome. It's really not reliable at all, sometimes calls comes through sometimes don't.. and when it does come through I can hear the caller but caller cannot hear me. This is quite common problem with wifi-calling and i given up.
If you get even a 1bar of reception near by the window, I suggest calling T-Mobile and getting their Cel-Fi device (Free of charge but has to return when you leave T-Mobile). 1~2 bar by the window will give you full 4bar reception throughout the house on 4G. Only requirement is that you must be living in single house, can't ship out to house that are connected by or close by. I live in townhouse and I just told them I live in single house and got the device in 3 days. =)

Wi-Fi calling is a disaster. For me, incoming audio drops constantly, but the party I am calling can hear me fine. On other occasions, the call will just randomly drop. Came from a Sensation where Wi-Fi calling was perfect. There does not seem to be any resolution... I have spent hours talking to tech support and they have replaced the device with no improvement. I have also had my ISP out and they have verified that my connection is fine. I have even changed the router out... same issues.

With my wifi calling, as soon as I turn kt kn my bars at home would drop where I would hardly get any service. As soon as I turn wifi calling off I magically get bars. So I leave it off and now I get bars pretty much everywhere I go....almost
from my Galaxy Note 2 using Tapatalk 2

Nellyinda803 said:
With my wifi calling, as soon as I turn kt kn my bars at home would drop where I would hardly get any service. As soon as I turn wifi calling off I magically get bars. So I leave it off and now I get bars pretty much everywhere I go....almost
from my Galaxy Note 2 using Tapatalk 2
Click to expand...
Click to collapse
With wifi calling on, it's suppose to drop signal bars to nothing. You have to go by the wifi bars instead.

Wifi also greatly depends on your network conditions. Cause I have the same problem but it doesnt happen to me that often after some tweaking.

Wifi Issue
I have that problem quite a bit but the signal strength on my router is good. Yesterday i had my internet company reset the cable modem and my wifi problems have decreased a lot but it is still happing. It has to deal with the wifi certificate problems on the Note 2 (Samsung). It is the same problem that I had on the GS3.
Oh well

ghost_231 said:
Wifi also greatly depends on your network conditions. Cause I have the same problem but it doesnt happen to me that often after some tweaking.
Click to expand...
Click to collapse
what tweaking did you do?
my internet is rock solid. only good thing about uverse service, yet this wifi calling is in and out and in and out all the time.

robl45 said:
what tweaking did you do?
my internet is rock solid. only good thing about uverse service, yet this wifi calling is in and out and in and out all the time.
Click to expand...
Click to collapse
not much for me, just very little. tried to set up QoS and worked pretty good. until my bro starts playing on his xbox, then im screwed on it lol

No issues here with wifi calling.

Nellyinda803 said:
With my wifi calling, as soon as I turn kt kn my bars at home would drop where I would hardly get any service. As soon as I turn wifi calling off I magically get bars. So I leave it off and now I get bars pretty much everywhere I go....almost
from my Galaxy Note 2 using Tapatalk 2
Click to expand...
Click to collapse
Uhh, that's the point of wifi calling, to make calls over WiFi and disable your cellular radio. If you turn on Wifi Calling, you should get a blue phone icon on the top left and your "bars" should drop to nothing as your phone turns off the cellular radio. You can still make/recieve calls/sms/mms.
I've been getting an ER01 error lately with invalid certificate, but it seems to be a T-Mobile backend problem? It happens, about 10% of the time and only on my school's network (I have a feeling, it might have to do with the sign in process there).Otherwise, it works well at my apartment.

achusaysblessyou said:
Uhh, that's the point of wifi calling, to make calls over WiFi and disable your cellular radio. If you turn on Wifi Calling, you should get a blue phone icon on the top left and your "bars" should drop to nothing as your phone turns off the cellular radio. You can still make/recieve calls/sms/mms.
I've been getting an ER01 error lately with invalid certificate, but it seems to be a T-Mobile backend problem? It happens, about 10% of the time and only on my school's network (I have a feeling, it might have to do with the sign in process there).Otherwise, it works well at my apartment.
Click to expand...
Click to collapse
i get that certificate problem at my house, not too much anymore, but I still see it. and the wifi calling does drop in and out at various times. not a huge deal for me, but the average person wouldn't deal with that.

achusaysblessyou said:
I've been getting an ER01 error lately with invalid certificate, but it seems to be a T-Mobile backend problem?
Click to expand...
Click to collapse
I've been noticing more & more problems with my service in the last two months. I called T-Mobile to fix it and whatever they did seemed to only help a little. I get times where I get frequent ER01 errors with WiFi & duplicated text messages (same text message gets received by my phone 2-3 times) for an hour or two. I used to also get errors sending texts around that time, but that appears to have gotten better.
Someone else mentioned Uverse, and my WiFi calling problems are at home & work, both of which have AT&T for internet... When I switched from their DSL to Uverse I expected less problems, but got more.

anyadike said:
I've been noticing more & more problems with my service in the last two months. I called T-Mobile to fix it and whatever they did seemed to only help a little. I get times where I get frequent ER01 errors with WiFi & duplicated text messages (same text message gets received by my phone 2-3 times) for an hour or two. I used to also get errors sending texts around that time, but that appears to have gotten better.
Someone else mentioned Uverse, and my WiFi calling problems are at home & work, both of which have AT&T for internet... When I switched from their DSL to Uverse I expected less problems, but got more.
Click to expand...
Click to collapse
Seems to be a problem that a lot of people are experiencing. Just did a quick Google search and some indication points to a possible T-Mobile back-end problem. I wonder if i call up T-Mobile and ask for wifi calling to be explicitly added to my plan if that'll change anything.

Network loss

Ok guys, having a real problem here. Often when I am connected to either 3g or wifi my phone will stop picking up signal suddenly. AIt's almost every time and I will have to disconnect from the network manually and reconnect and it will instantly pick up signal again for a while then it'll repeat. When it suddenly stops it doesn't show on the status bar that I have lost any signal. With 3g its kinda just at a stand still not receiving or uploading and with wifi it just stays the same but I'm still not picking up a signal because by web pages won't load neither will other apps that require network load until I manully disconnect and reconnect. Is anyone else having a problem like this? I don't think it was like this when I firs got my phone a month ago. I'm at a loss. Any help is much appreciated. Oh I'm completely stock btw haven't rooted........(yet) lol

microdave said:
Ok guys, having a real problem here. Often when I am connected to either 3g or wifi my phone will stop picking up signal suddenly. AIt's almost every time and I will have to disconnect from the network manually and reconnect and it will instantly pick up signal again for a while then it'll repeat. When it suddenly stops it doesn't show on the status bar that I have lost any signal. With 3g its kinda just at a stand still not receiving or uploading and with wifi it just stays the same but I'm still not picking up a signal because by web pages won't load neither will other apps that require network load until I manully disconnect and reconnect. Is anyone else having a problem like this? I don't think it was like this when I firs got my phone a month ago. I'm at a loss. Any help is much appreciated. Oh I'm completely stock btw haven't rooted........(yet) lol
Click to expand...
Click to collapse
It has happened to me a couple times that I have noticed. I will be streaming music and walking and all of a sudden, nothing.
Even a soft reboot does not help. It will require a full reboot generally to solve the issue. I have not been able to identify the issue specifically. I suspect it might be related to LTE testing in my area.
What's the LTE status in your area?

No lte yet but as I stated earlier it happens on wifi too. It'll still show that the signal is connected but my pages want load at all after it happens and when I try to refresh it'll say that the webpage could not load because there is no network. Only until I manually shut off 3g or wifi in the settings and turn it back on will it pick up signal again but only for about 5 minutes. This has happened in various locations on 3g and wifi and will even happen at home wifi.
Sent from my SPH-L900 using Tapatalk 2

This has happened to me as well... A lot . Stock.. on various roms.. No lte as well.. But it's in the works
-TeaM VeNuM Like A Boss
-Galaxy Note II Edition

I've had this problem too. Sprint replaced my phone and it never happened again.

I think reactivating hands free actually fixed my problem...for now anyway. It's not losing network like it was before. All I did was enter on the phone dial pad ##72786# that'll reactivate. Hope this helps

[Q] Network Issue On S4

Hello all,
I am not sure if this is because of the 4.3 update. My phone seems to lose connection fast as soon as I restart the device. Here is what exactly happens.
I reboot the device,
I see 4G Lte and 2-3 bars show up, but soon after, I lose connection completely and there is a stop sign for my bars.
What is going on here.
Wifi connection is fine, but when I connect to wifi I see grey for the bars in the notification.

I'm having the same issue in Nashville. Just updated, and constantly losing service, from lte to 4g
Sent from my SGH-M919 using xda app-developers app

flipthetomato said:
Hello all,
I am not sure if this is because of the 4.3 update. My phone seems to lose connection fast as soon as I restart the device. Here is what exactly happens.
I reboot the device,
I see 4G Lte and 2-3 bars show up, but soon after, I lose connection completely and there is a stop sign for my bars.
What is going on here.
Wifi connection is fine, but when I connect to wifi I see grey for the bars in the notification.
Click to expand...
Click to collapse
Have you flashed Ktoonz kernel yet?
It should fix the issue you are having.
If not, odin flash the MK2 modem.bin image.
Good luck, happy thanksgiving!

Figured it out. It was just wifi calling should be set to wifi if available.

Mine gets stuck in lte, and finally just times out on the webz, says no data connection.
Sent from my SGH-M919 using xda app-developers app

Yes same happened to me until I flashed 4.3 with odin. I couldn't even put wifi on. But now it works.
Sent from my SGH-M919 using Tapatalk