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

(T-Mobile) Randomly Losing Signal

My gsiii for some odd reason loses 4G and sometimes even service. Last night when i was on a call, it dropped and the signal reflected that i was running on edge then it switched to someting that said "G." I looked at my brother's siii and he was also on edge. So i tried putting it on airplane mode however it would not go through. It's as if i never pressed anything. So i had to restart the phone and it was on airplane mode, so i took it off then about a minute and a half later i got 4G back. Today when i was browsing the web, i randomly lost 4G again but this time i continued to have signal just no data. About a minute later I got it back. About a minute later i lost it again and regained it about a minute later. I havent noticed anything else about the phone and ive had it for about a week and last night was the first time that i restarted it. Any ideas? Has anyone else experienced this? Thanks!

I'm also having the same problem it just happened to me today also and happened the other day when I restarted phone it did nothing then I did airplane mode that didn't do anything so I clicked the enable packet data off then on an item came back in hoping it's not going to be a hardware problem cause I've dropped calls for no reason and had no service or bars were showing but had no edge 4G etc
Sent from my SGH-T999 using xda app-developers app

ballenone said:
I'm also having the same problem it just happened to me today also and happened the other day when I restarted phone it did nothing then I did airplane mode that didn't do anything so I clicked the enable packet data off then on an item came back in hoping it's not going to be a hardware problem cause I've dropped calls for no reason and had no service or bars were showing but had no edge 4G etc
Sent from my SGH-T999 using xda app-developers app
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Yeah it's really weird, when I was using mt4g, it would do that randomly as well, I'm not sure if it's a phone or a network issue. Anyone else experiencing this random drop in data?

Same here I think it's a common issue with tmobile devices.
Sent from my SGH-T999 using xda premium

I think is just the network it had happened to me but while driving some place and Idk if is the coverage but other then that I do see going from h+ and 3g, I have a custom theme install
Sent from my SGH-T999 using Tapatalk 2

I just moved from Sprint to Tmo and I'm getting the same on my S3. It would look like i have good 4g coverage with 3 bars then all of a sudden it goes to Edge. So I have to wait for it to go back to 4g to start surfing. Edge is like 15kbps for me which is not even modem speed which is 56k. If I accidentally start surfing on Edge it seems to wanna stick to Edge until I close whats using data then it will eventually go to 4g. But when I get 4g its awesome and I get over between 6meg to 12 but only 40% of the time. I called Tmo and they said I have great 4g coverage where I'm at....ya sure.

aznmode said:
I just moved from Sprint to Tmo and I'm getting the same on my S3. It would look like i have good 4g coverage with 3 bars then all of a sudden it goes to Edge. So I have to wait for it to go back to 4g to start surfing. Edge is like 15kbps for me which is not even modem speed which is 56k. If I accidentally start surfing on Edge it seems to wanna stick to Edge until I close whats using data then it will eventually go to 4g. But when I get 4g its awesome and I get over between 6meg to 12 but only 40% of the time. I called Tmo and they said I have great 4g coverage where I'm at....ya sure.
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Ha ha tell them to give you credit Lmao
Sent from my SGH-T999 using Tapatalk 2

It's them rebooting equipment due to all the upgrades they're adding.
Sent from my MyTouch 4g

hedjemunkee said:
It's them rebooting equipment due to all the upgrades they're adding.
Sent from my MyTouch 4g
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This is very good for a lot of reasons!! Can't wait.
Sent from my SGH-T999 using Tapatalk 2

I just checked settings... battery... cell standby... 45 percent without signal.... anyone else check those stats? I got people telling me they called but no record on my phone

cwalker0906 said:
I just checked settings... battery... cell standby... 45 percent without signal.... anyone else check those stats? I got people telling me they called but no record on my phone
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I've only experienced outright loss of signal once, which was last night. So far nothing else has happened really. It was just odd that my phone won't even go into airplane mode until I rebooted the device.

Same thing happened to me. I was actually quite worried and about to send my phone back. Everything seems to be working okay now. No issues.
Sent from my SGH-T999 using Tapatalk 2

this has driven me mad for the past few days. recently I upgraded to a S3 and my dad got a S 4G (which was released 2 years ago). while we were in Costco, my S3 randomly switched to Edge while the S 4G has 4G all the time. ALso we were on vacation to San Francisco so I could experience "Tmo largest 4G network." While we were in a hotel in Fremont, my S3 again switched to Edge and back to 4G randomly while the S 4G had 4G. also the signal is not stable at all. sometimes(1 or 2 times) it even dropped to zero bar. SOMETHING wrong with samsung phones. I read somewhere someone had this issue with the S2 also. I can live with the HSPA+ for 2 years, but hey dont give me random Edge like that
I plan to go exchange for a new phone at Costco... probably a new S3 to see if the issue still exists...

K12123 said:
My gsiii for some odd reason loses 4G and sometimes even service. Last night when i was on a call, it dropped and the signal reflected that i was running on edge then it switched to someting that said "G." I looked at my brother's siii and he was also on edge. So i tried putting it on airplane mode however it would not go through. It's as if i never pressed anything. So i had to restart the phone and it was on airplane mode, so i took it off then about a minute and a half later i got 4G back. Today when i was browsing the web, i randomly lost 4G again but this time i continued to have signal just no data. About a minute later I got it back. About a minute later i lost it again and regained it about a minute later. I havent noticed anything else about the phone and ive had it for about a week and last night was the first time that i restarted it. Any ideas? Has anyone else experienced this? Thanks!
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Click to collapse
T-Mobile's 4G network works in a interesting way (do all HSPA+ networks work this way?). They idle in UMTS mode (3G) until there is network activity, and then switch to HSPA+ (4G) mode. The network changing is an automatic thing does to save battery life ("Cellular standby" is often the largest battery drains).
Ever use an AOSP-based ROM (i.e. Cyanogenmod)? You'll sometimes see the network indicator in the status bar switch between 3G to H+ to 4G, etc as you use it. Stock T-Mobile ROMs are hard-coded to always say "4G", but if you go to Settings → About phone → Status, you can watch the network type there change as well as the phone does anything over the cellular network.
You should never be dropping to GPRS or EDGE. Perhaps the mechanism described is defective on your phone?

Happened again today. Had signal but no 4G, not even Edge, just bars. i think it happens whenever the signals low. Thoughts?

I'm having the same issue at my work place. I'm getting Edge (50-80%) more often at my desk, when previously with my SGS2 it stayed at 4G all the time. Checking Cellstandby I am getting 31% time without signal.
Is there a setting to force 4g connection?
My office is in Cupertino, CA and reception is not bad in general, but there are a few locations with 4G dead spots.
I'll check my reception again at home (Santa Clara, CA). I can do a side by side comparison with my SGS2 (now belongs to my wife).
On call with TMO right now, they are going to do a reset of the phone in their system, then I will need to do a reboot. Fingers X'd that things will improve.
BTW, what options do I have to get a replacement phone if I bought mine from Walmart? Do I need to send it in or can I do an instore exchange? Just got it on Sunday. Will I incur any fees if I returned the phone?
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Reset didn't work. Passed on to level 2, there submitting a service request to check reception in the area. Need to follow-up on Friday if the reception is still bad. Since I'm in Cali I do have 30 days to return the phone.

I have similar reception issue but I dont lose signal completely. I will go from 4g(hspa+) to 3g to edge then it will switch back to 4g after 30secs-60secs. Quite annoying since I will be stationary and it will happen and it happens more when Im in a car. Never had this problem when I had the Nexus One.

sfsilicon said:
I'm having the same issue at my work place. I'm getting Edge (50-80%) more often at my desk, when previously with my SGS2 it stayed at 4G all the time. Checking Cellstandby I am getting 31% time without signal.
Is there a setting to force 4g connection?
My office is in Cupertino, CA and reception is not bad in general, but there are a few locations with 4G dead spots.
I'll check my reception again at home (Santa Clara, CA). I can do a side by side comparison with my SGS2 (now belongs to my wife).
On call with TMO right now, they are going to do a reset of the phone in their system, then I will need to do a reboot. Fingers X'd that things will improve.
BTW, what options do I have to get a replacement phone if I bought mine from Walmart? Do I need to send it in or can I do an instore exchange? Just got it on Sunday. Will I incur any fees if I returned the phone?
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Question. With your s2 what happens if you're in an area without 4g? Do you get edge?
Sent from my SGH-T999 using Tapatalk 2

I am having the same issue. I had perfect 4g coverage all over my town, (I live in south texas). The problems started 2 days ago, when I lost all 4g coverage. I took out my sim card and placed it back in and the 4g logo came back on. But now I have been noticing that my cell signal will completely drop and then slowly come back up. This has happened several times. I also went to tmobile and changed my micro sim card and the issue remains. AND NOW I AM ON EDGE!!!!!

Has anyone been able to get a replacement and did it fix the problem?
Sent from my SPH-L710 using Tapatalk 2

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

To much roaming but i love youc

So a sixth if my regular data is roaming..6gb vs 1.2gb You think ill get the magic letter? I refuse to give up my optimus g.
Same spot except three days ago it started to roam instead of receive regular sprint service. Odd because it switches between the two now. If i get the boot. Gonna have to sell the phone... :/
Also knew radio did help with wifi connections.
Sent from my LG-LS970 using Tapatalk 2

How did you use so much data?! Both normal and roaming. Roaming is so slow for me
sent from my phone

megamaster2 said:
How did you use so much data?! Both normal and roaming. Roaming is so slow for me
sent from my phone
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My prl is 16013 a legitimate corporate 3g roaming prl btw.
And i have one of the nv complete towers on the 247 it is a smr 800 also and it is back hauled by microwave plus only like 20 people live out here.
But what i dont get is three weeks no roaming and now im roaming all the time. Idk what happened even on sprint signal of 1bar i get almost 2mbps and with roaming almost 3.
Thats how i was able to get where im at. There isn't any rules on using my phone to download stuff and then transfer it to my pc . I tether here and there but for web browsing if i need to download its to my phone as that's good enough for me.
Might have to try and lock phone to home only.
Sent from my LG-LS970 using Tapatalk 2

corp prl allows 3g roaming.. i went months using 5+gb a year ago before i got a call from sprint and it was a warning. you should look into an airave device if your signals bad
Sent from my LG-LS970 using xda app-developers app

elliwigy said:
corp prl allows 3g roaming.. i went months using 5+gb a year ago before i got a call from sprint and it was a warning. you should look into an airave device if your signals bad
Sent from my LG-LS970 using xda app-developers app
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No internet where i live lol.
Im going to look into a cellphone signal booster though. Because i know i get sprint.signal out here its just recently i started roaming all the time. Idk what changed.
And ya thanks for the info on your roaming im going to try and keep the data down while ot roams hopefully it changes but if it doesn't then nothing i can do.
Sent from my LG-LS970 using Tapatalk 2

They might be working on the tower. Happened to me two months ago
Sent from my GT-I9300 using XDA Premium HD app

Picking up an LGOG for my wife today, so doing some reading up on it and stumbled across this thread. I can offer some insight. I was using the 00001 (or whatever) PRL on my EvoLTE back in Dec / Jan. They sent a letter and called me a couple of times.
"Sprint reserves the right, without notice, to deny, terminate, modify, disconnect or suspend service if off-network usage in a month exceeds: (1) voice; 800 min. or a majority of minutes' or (2) data: 300 megabytes or a majority of kilobytes."
I had two months in a row with over 300 MB of roaming. I used the Verizon PRL when i went to up north (Michigan) because there is no sprint service to speak of where i was going for a few weekends. My friends have Verizon and get phone calls when were in the middle of no-where.
Hope this helps!

NYC and Data Coverage

So I live in the city. Right now I'm using MOAR v4.01 and I cannot achieve a connection other than 1x no matter where I am in the city. I had this problem on other ROMS so I don't think it's MOAR.
I was using the Anthrax Aosp rom a few months ago and noticed I achieved a 4g connection on the upper east side but ever since then I cannot get higher than 1x.
Is there anyone else in NY getting a 3g or 4g connection? Does anyone know what I can do to try to fix this? I am using the MD4 modem (had the problem on MB1 too) and update my profile and prl often. I am really getting frustrated paying for services I can't even use. I am hoping that I won't have to unroot and reset my flash counter to bring the phone to a sprint store.
Sent from my SPH-L710 using Tapatalk 2

davelikestacos said:
So I live in the city. Right now I'm using MOAR v4.01 and I cannot achieve a connection other than 1x no matter where I am in the city. I had this problem on other ROMS so I don't think it's MOAR.
I was using the Anthrax Aosp rom a few months ago and noticed I achieved a 4g connection on the upper east side but ever since then I cannot get higher than 1x.
Is there anyone else in NY getting a 3g or 4g connection? Does anyone know what I can do to try to fix this? I am using the MD4 modem (had the problem on MB1 too) and update my profile and prl often. I am really getting frustrated paying for services I can't even use. I am hoping that I won't have to unroot and reset my flash counter to bring the phone to a sprint store.
Sent from my SPH-L710 using Tapatalk 2
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I'm nowhere near NYC (in fact, Southern California is pretty much as far away as you can get from NYC without going to Alaska or Hawaii), but it sounds like Sprint might be updating their network. I know in many areas (myself included), Data services were extremely crippled when they were installing 4G. I would regularly get 1x in areas where I would get decent 3G. Then a few weeks later, the 3G was back. Then a month or so later 4G was up and running (it's pretty nice here at my work desk). Others have reported similar issues when the network is being upgraded.
So maybe it'd be worth a call to Sprint to see what's up with them. A part of me doubts that most of NYC would be upgraded at once, but maybe in your area there's work going on. It's worth a (relatively) quick call.

Yes, I get 3g and 4g depending where I am. I'm stock rooted md4.
Had that issue once but update profile and prl over wifi fixed it for me.
Sent from my GT-N8013 using Tapatalk HD

I emailed them and they told me there is network outages in my area, but then the guy above me just said he's getting a 3g and 4g connection. Sprint really frustrates me. When I got my phone, it would say I was connected to 3g but after doing speed tests I would only get about 115kbps down. Now I'm using MOAR and it shows 1x and if I do a speed test on 1x its about the same. However, I used to get a 4g connection on 44th street and 6th ave but now I don't. I think I'm gonna go to the store today and ask them. If they tell me to bring my phone in I'll have to unroot it and reset the flash counter :/
Sent from my Nexus 7 using Tapatalk HD

Yes, certain spots in lower Manhattan I get signal but can't use the service. It just don't work. Text won't send or calls won't go thru.
Yes sprint turns on and off the 4g.
Sent from my GT-N8013 using Tapatalk HD

vibes340 said:
Yes, certain spots in lower Manhattan I get signal but can't use the service. It just don't work. Text won't send or calls won't go thru.
Yes sprint turns on and off the 4g.
Sent from my GT-N8013 using Tapatalk HD
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So I found out what was causing the issue. I went into the ##3282# menu and navigated to Others > HDR/1X Selection and turned it to Hybrid mode and now I can access 3G and I'm gonna test 4G after work.
Sent from my Nexus 7 using Tapatalk HD