Develop Bugs

nexus dropping connection

My nexus keeps dropping all data! After a reboot ill have data for 3 minutes then bam its gone same with 3G! Is there anyway to dia *228 to update your roaming stuff or something i have tried eberything i have roaming on and have done multiple restores any ideas

add *22899 as a contact and dial it from your contacts. It will update your prl. Maybe this will work for you.
Sent from my Galaxy Nexus using xda premium

No good anything else?

I get the same thing. I updated my radio and seems to work a little better but still get data drop.
Sent from my Galaxy Nexus using xda premium

Well, I had the same issue a couple of days ago. But the issue was not with the phone....it was with the signal tower. You should call Verizon and see what's going on. Sometimes there are areas where 4G signals are also weak. I spent one night at South Beverly Drive and Wilshire in Los Angeles, and I got no 4G signal whatsover. If you live by the area where there are lots of tall buildings, you probably won't get any data signals. So you might wanna check both.

My first Nexus would lose all signal at random, even if I was in an area with 4 bars of 4G. Swapping the SIM card out didn't work, so I swapped the phone out.
The new one works perfectly in a 4G area, but in a 3G-only area (like where I live), it will drop its data connection a lot. It keeps voice, but the 3G icon disappears. Switching into CDMA-only mode didn't help. Flashing the 4.0.3 radios didn't help. I use a lot of data, so I'm left wondering whether I should swap this phone out, or just give up on having a Nexus.

I don't experience any connectivity issues so far(I live in Fullerton, California), and my brother, 2 of my friends, friends' friend, my girlfriend and her little brother!

It started after the 4G outage... Could have that hurt my phone? I highly doubt it but you never know...hmmm to verizon when I get back home from vacation
EDIT: Been on CDMA and it seems to be working, low bars, but seems to be. Maybe its verizon's network where I am, ill check again tomorrow. Hope its working this is really making me sad I really do love my nexus

Could it be your modem/radio? I'm using a GSM nexus, but I had loads of signal drops on the KK1 modem till I updated to the KK6 modem
Sent from my Galaxy Nexus

adecker said:
It started after the 4G outage... Could have that hurt my phone? I highly doubt it but you never know...hmmm to verizon when I get back home from vacation
EDIT: Been on CDMA and it seems to be working, low bars, but seems to be. Maybe its verizon's network where I am, ill check again tomorrow. Hope its working this is really making me sad I really do love my nexus
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I was wondering the same thing. Mine has been sporadic since the outages while my wife's charge is rock solid. I have tried to lose a signal with her charge and it won't do it. 3g is awful on my nexus. It'll be there for a minute or two then gone. Really frustrating cause I love this phone
Sent from my Galaxy Nexus using XDA App

I've been seeing the same thing but it seems to only happen when I'm on LTE. Example...I just went out and was in a 4G coverage area with full signal. Around every 15-20 minutes I would lose all form of signal for about 30 seconds and it would come back. I've found that switching to CDMA only allows me to maintain a solid connection. During the period that I was experiencing the outages my girlfriends RAZR has been rock solid. Looks like I may be spending some time on the phone with Verizon tomorrow.
Sent from my Galaxy Nexus using Tapatalk

[Q] Losing all data when toggling 4g? [LTE

Hey everyone!
I was wondering if anyone else is having the problem where if you toggled your 4g to turn it off, you would lose all data entirely? I currently running winner's kang-cm9 and when I try to turn off 4g through the toggle or through the settings, I only get gray signal bars. I'm assuming I should still have 3g after turning off 4g. Is this someone that everyone is experience or is it my phone?

I'm having a similar issue (stock ROM). I notice it every morning when I leave for work. I leave my place and wifi disconnects (lack of signal). Since I don't have LTE outside, it seems like it try's over and over to obtain LTE signal. LTE is spotty in my area, so it will go in and out. However, 3G sometimes fails to connect and I sit there without any signal. It's incredibly frustrating...
Last night I just flashed to Apex ROM/Kernel. This morning I waited for my car to warm up a little bit and by the time i plugged in my phone, it had a 3g connection. I will be continuing to look out for this, but I have been able to replicate the issue in my first paragraph over and over again... something is definitely wrong with the radio on our phone (CDMA).

Oh that happens to me a lot too because I get bad 4g in my area so a lot of times when its switching back and forth I lose data for a while.
The problem I'm having is that I would try to disable LTE/4g to save battery but would end up losing all data (Only calls and text work). On my friends thunderbolt he was able to disable 4g and retain his 3g data. As for me, I lose all data and I have to restart to regain data again when I try to disable 4g data
Sent from my Galaxy Nexus using Tapatalk

Shooshi said:
Oh that happens to me a lot too because I get bad 4g in my area so a lot of times when its switching back and forth I lose data for a while.
The problem I'm having is that I would try to disable LTE/4g to save battery but would end up losing all data (Only calls and text work). On my friends thunderbolt he was able to disable 4g and retain his 3g data. As for me, I lose all data and I have to restart to regain data again when I try to disable 4g data
Sent from my Galaxy Nexus using Tapatalk
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That's an interesting point. I was wondering how the other LTE VZ phones handled this situation... I think VZ/Google needs to address this in a fix ASAP.

I work in a largish company in Seattle area. We have ~5000 engineers working in the area and I posted the same question since my Verizon GNexus would completely lose all mobile data for hours at a time every 3-4 days. From what the results I got, they said that in our area they are all seeing those problems and they had different devices. I got responses from OG Droid, Droid Charge, GNexus, DroidX2, Thunderbolt.
I've been seriously considering returning my phone since this is clearly a verizon data network issue which is not limited to LTE as their press releases would have you believe.

caslca said:
I work in a largish company in Seattle area. We have ~5000 engineers working in the area and I posted the same question since my Verizon GNexus would completely lose all mobile data for hours at a time every 3-4 days. From what the results I got, they said that in our area they are all seeing those problems and they had different devices. I got responses from OG Droid, Droid Charge, GNexus, DroidX2, Thunderbolt.
I've been seriously considering returning my phone since this is clearly a verizon data network issue which is not limited to LTE as their press releases would have you believe.
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Click to collapse
Well see, i can get data if i toggle airplane mode or cdma to cdma/LTE. it takes me forcing the phone to start looking for 3g instead of LTE.

Very serious issue. Slow reconnects on a toggle that should be unobtrusive between 4g-3g. I suffer from the same issue.
What's worse. The reception in general is terrible. And dropping from 4g to 3g ..the phone either never reestablishes 4g or take.....a. VERY long time. Like, 10-15 minutes. Unbelievable
I'm trying desperately to get google to be aware of this and I'm PRAYYYIINNGG this is a software issue.
P.s this is my third nexus... so I believe this is everyone
Sent from my Galaxy Nexus using xda premium

Yep... I have two other friends with this issue as well. I just got off the phone with Verizon, and they acknowledged the data connectivity issues... they said an update is in the works and is tentatively sometime Jan/February.... for the record, i'm on 4.0.3 (axi0m rom); not that it should matter ...

What I'm seeing is similar but sounds like it might be slightly different. I have a thread on it here:
http://forum.xda-developers.com/showthread.php?p=21352288
I'm not sure if what I'm describing there is "normal" and the thing they are working on an update to address or if I have a bad radio/phone. Any thoughts?
In my case, it will go: 4G->no_data->4G in the span of about 30 seconds or so. The 4G indicator will still show for a few seconds but I'll get "no connection" kind of messages. Then I get just a solid gray triangle. About 30 seconds later, I see the bars, then the 4G indicator, then the bars turn blue.
Anyone else seeing this? This happened to the phone before this which I swapped due to this problem. What are the chances I got 2 bad ones in a row? Or is it just a similar issue to what you all are describing?

New bell SGSIII drops signal all the time

Just got the phone today and rooted it right away In the last 7 hours its dropped about 7 times. Im not sure if its because of root or what. I have not installed any other rom.

Its not the root... Its the carrier
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

Foot shouldn't affect cellular signal at all, all that rooting does is give superuser
Sent from my SGH-I747M using xda app-developers app

Could it be because im inside and its trying to switch between H+ and LTE all the time? Is there a toggle i can just keep it at H+?

I would find that unlikely but you can try being on HSPA only and see what happens
Sent from my SGH-I747M using xda app-developers app

equlizer said:
Could it be because im inside and its trying to switch between H+ and LTE all the time? Is there a toggle i can just keep it at H+?
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You can go to settings, more, mobile networks and switch from gsm/lte or just gsm. But I have not dropped data other than H to 3G every once and a while in weird areas but not a whole lot, but talk to bell online chat and see what they say.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

what do you mean it loses signals?
does it get disconnected to the network completely? and you get the emergency calls only message?
because that happens to me as well. I am also thinking its because the phone tries to switch from LTE to H+ over and over.

I think I'm getting the same problem, a fee times a day i get zero signal, then all of a sudden it pops to full signal, without moving the phone. When i lost the signal, it says emergency calls only...
Sent from my Nexus 7 using Tapatalk 2

I had the same issue downtown Ottawa. I switched to HSPA+ only and the problem went away. Turned out, Bell was working on their LTE stuff and that was going up and down and so did the phone. Now, it is all good.

Try having Bell reset your connection from their system....then get them to give you a different SIM card.

I had the exact same thing happen to me when I was in a zone not completly covered by LTE, whenever my phone lost LTE connection I would lose all signal for a bit to eventually drop back to HSPA+, I simply disabled LTE until the coverage reaches where I am completly.

Yep, disabled LTE for now. Problem has gone away and battery life fixed

me and my brother have had the issue in dowtown ottawa on rogers. seems fine in my apt in the market but on a patio and at a restaurant it just wouldnt work!! couldnt send texts, or receive, couldnt call, sometimes it showed i had full bars and lte but couldnt do anything. my brother complained about this the day before. i will try disabling lte next time

equlizer said:
Yep, disabled LTE for now. Problem has gone away and battery life fixed
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Leave a like if I helped!
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[Q] Verizon galaxy nexus won't stay on 4g

I've had the galaxy nexus for a while now and I've tried all the radios. I can stay on 3g just fine, but I can never stay on 4g. It will stay connected for a little bit, but once I start using the phone like on the internet or instagram or anything like that, 4g drops and I go strait to 3g. Any help would be appreciated

justin.pavsek said:
I've had the galaxy nexus for a while now and I've tried all the radios. I can stay on 3g just fine, but I can never stay on 4g. It will stay connected for a little bit, but once I start using the phone like on the internet or instagram or anything like that, 4g drops and I go strait to 3g. Any help would be appreciated
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What radio are you using right now? I am using Jelly Bean Radios FF02/FG02 and 4g works fine for me.

Ya I'm using the same as u and it seems to be better but still has random drops when I get into high data usage

maybe its your lte coverage? if the 3g signal is better, itll chose that.

Could be coverage, could be capping speeds
Sent from my Galaxy Nexus using Tapatalk 2

Do yourself favor and just turn off 4G.
For 1: Its a battery hog.
2: You don't need 80mbps every second of the day.
Think of 4G as an alternate to WiFi. I enable mine when I want to sit down and do some heavy surfing or app downloads. I prefer WiFi but 4G is my backup. I keep WiFi and 4G off until I need it, then just enable them.
I recommend using a Notification 4G toggle if you have a custom rom or a 4G desktop toggle if you run stock.
3G is plenty fast for background email syncs and updates.
3: 4G is hit and miss. Sometimes the phone will get stuck in NO DATA at all when it tries to switch in and out of 4G service. It isn't reliable enough to really screw with 24/7 and the gains mean jack if your device is dead.
Sent from my Galaxy Nexus using XDA Premium HD app

3G - 4G handshake issues?

So Raleigh finally has a few LTE towers active, and with the help of Sensorly I know where those are.
Seems though half the time it doesn't connect. I know it's not a tower issue, as if I turn on airplane mode on then off it will connect to 4G just fine.
I noticed under settings there's the Sprint optimize connection thing. Turning that on/off seems to have no difference.
Is there a file somewhere that I can edit to change the default connection lookup time? Since LTE is different from WiMax, where you don't "really" have control over the 4G radio, I'm assuming there is a time-out feature. A specified amount of time it takes before looking for an LTE signal. If this is true, is there a way to edit that to speed it up just a little bit? Say going from 10 minutes to 5 minutes? I'm not worried about battery life. I can't kill this thing in a day anyways and I'm lucky to have access to power 7/10ths of my work day.
Also I'm not sure if this is related to MA7, Deodexed stock ROM, or what but I am having issues with coming off Wifi to 3G, and 3G not being active. Have to cycle airplane mode a few times to get it to work.

I'm rooted with stock and although my my phone switches fine between Wi-Fi and 3g I did have a little trouble switching between 3g and 4g. One thing I did that helped was switch the mobile network to 3g only then after it reboots switch back to the 3g,lte network, after reboot run a prl update. That may fix your issue. The problem may also be Sprint is still not done boosting the strength on the 4g towers and is still testing them.
Sent from my Amazing Galaxy Note 2!

I am having no problems going to 4g from 3g or 3g from 4g but they are pretty far in my area. That might be the problem is there not that far by you
Sent from my SPH-L900 using xda app-developers app

Folks,
Your phone will connect to the strongest signal possible....if LTE is stronger it will connect and vice versa. When you toggle your airplane mode or power off/on it scans for everything at that time and will scan LTE and connect even if its weaker. As areas become more saturated it will connect easier
Edit:also turn off the sprint connection optimizer
Sent from my SPH-L900 using Tapatalk 2

neopolotin75 said:
Folks,
Your phone will connect to the strongest signal possible....if LTE is stronger it will connect and vice versa. When you toggle your airplane mode or power off/on it scans for everything at that time and will scan LTE and connect even if its weaker. As areas become more saturated it will connect easier
Edit:also turn off the sprint connection optimizer
Sent from my SPH-L900 using Tapatalk 2
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Click to collapse
I understand that. My question pertains to how long in between scans for LTE (I've read anywhere between 10 minutes and 30 minutes) and whetheror not that time can be changed on a rooted phone.
What exactly does the sprint connection optimizer do?
Sent from my Galaxy Note 2 using Tapatalk 2

poor_red_neck said:
I understand that. My question pertains to how long in between scans for LTE (I've read anywhere between 10 minutes and 30 minutes) and whetheror not that time can be changed on a rooted phone.
What exactly does the sprint connection optimizer do?
Sent from my Galaxy Note 2 using Tapatalk 2
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Well the note 2 scans pretty quick...id say <5 mins or so. I can leave my station where theres no lte and drive 1-2 miles and be connected. Once it loses lte it seems to reconnect in under a min. The connection optimizer scans available wifi hotspots and attempts to offload your data on wifi networks you have used before. Ive heard that it connects to wifi spots that you havenrt xonnected before but I havent seen this. It will cut your wifi on periodically to check and so forth. I uncheck mine and freeze it in titanium. ...personally I think it isnt needed and is a waste.
Sent from my SPH-L900 using Tapatalk 2

Ok cool. So you didnt notice any change with 4g connectivity with the sprint optimizer disabled?
I guess theyre just still working on the towers. My maket hasnt officiallyblaunched yet but close to 1/4 of the city's got connectivity.
Sent from my Galaxy Note 2 using Tapatalk 2

poor_red_neck said:
Ok cool. So you didnt notice any change with 4g connectivity with the sprint optimizer disabled?
I guess theyre just still working on the towers. My maket hasnt officiallyblaunched yet but close to 1/4 of the city's got connectivity.
Sent from my Galaxy Note 2 using Tapatalk 2
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I havent had any issues connecting to 4g with it turned off. I think here in Indy we are like the 40-50% or so and its pretty lit up.
Sent from my SPH-L900 using Tapatalk 2

neopolotin75 said:
Folks,
Your phone will connect to the strongest signal possible....if LTE is stronger it will connect and vice versa. When you toggle your airplane mode or power off/on it scans for everything at that time and will scan LTE and connect even if its weaker. As areas become more saturated it will connect easier
Edit:also turn off the sprint connection optimizer
Sent from my SPH-L900 using Tapatalk 2
Click to expand...
Click to collapse
Not true. Your phones data connection is set in a priority order. Wifi is #1 and overrides all, 4G is #2 (will override 3G and 2G even if it's a crappy 4G signal), 3G #3, followed by 2G as the final drop back if none of the others are available.
Sent from my SPH-L900 using xda app-developers app

RayTrue04 said:
Not true. Your phones data connection is set in a priority order. Wifi is #1 and overrides all, 4G is #2 (will override 3G and 2G even if it's a crappy 4G signal), 3G #3, followed by 2G as the final drop back if none of the others are available.
Sent from my SPH-L900 using xda app-developers app
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Ummm....what u talkin bout willis? Thats what I said.....scans everything and will connect to lte even if its weaker than 3g.
Sent from my SPH-L900 using Tapatalk 2

neopolotin75 said:
Ummm....what u talkin bout willis? Thats what I said.....scans everything and will connect to lte even if its weaker than 3g.
Sent from my SPH-L900 using Tapatalk 2
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Oh I should've read that thoroughly. I see what you did there. First you were like it connects to the strongest signal possible then you were like it connects to 4G even if it's a weaker signal... What a way to contradict yourself kinda makes no sense which is why the confusion.
Sent from my SPH-L900 using xda app-developers app

RayTrue04 said:
Oh I should've read that thoroughly. I see what you did there. First you were like it connects to the strongest signal possible then you were like it connects to 4G even if it's a weaker signal... What a way to contradict yourself kinda makes no sense which is why the confusion.
Sent from my SPH-L900 using xda app-developers app
Click to expand...
Click to collapse
You said the samething I did except you said the order of the scan.......guess I should have put the scan order in....next time ill proof read it so I dont contradict myself, cause confusion or brain hemorraging :thumbup:
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