Develop Bugs

[Q] 3g everythere but at home????

I have a problem with my Tmobile g2 running 2.2, it is all stock no modifications whatsoever other than handcent and fancy widget.
The problem is I can not connect to 3g or hsdpa network when I am at home. By this I mean the cell tower that provides service when I am at home. I have txt and calling capabilites but I have no data whatsoever. I have to manually switch to 2g or edge to check email or use the browser. I have called tmobile and they keep telling me that the problem is with my phone, however when I am 2 or 3 miles from my house and it goes to any other tower on the planet everything works fine.
I have searched the g2 forum here but could find no answers. I apologize in advance if this has been indeed covered or discussed to death and I have just failed to find it.
I did find the *#*#4636#*#* option and when it is on 2g I can run a ping test and it finds the server just fine, but on 3g it always fails to connect. Again this only occurs of course when I am sitting at home!
Thanks to anyone who can shed some light on this or point me in the right direction because leaving it up to tmobile has proven to be fruitless.

It might also be worth mentioning that i replaced the sim card today as well, this too had no effect on this phenomenon.....

My mom's nexus s has the same problem. Only difference is that when i walk out the door i get 3g. Once i walk back in, I get edge...... I think its might be just tmobile frequencies poor ability to pentrate walls.

Sounds like a problem with the 3G network in your area, or just a weak signal there.

I know its not the signal strength, I always have full bars at home Its something to do with the network....

DefiantMenace said:
I know its not the signal strength, I always have full bars at home Its something to do with the network....
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Full bars on 3G or 2G ? If you have full bars on 3G then it sounds like a network problem.

I have the exact same problem, but my building is probably over 100 years old with 300 coats of lead paint on it. It depends on your building. Signals can bounce off of mirrors for example and other materials. The more material the signal has to go through, the more attenuation happens.

I have a similar problem, my G2 can't maintain a consistent connection, I will go from 4 bars of HSPA+ to 4 bars of Edge to nothing (lost connection to network) and it will jump around wildly between these three states (every few minutes). My wife's MyTouch 4G doesn't do this, my G1 did not do this, our kids (dumb) phones have consistent connections.
I know it's some interaction between my phone and the TMO network, I'd say it was a defective phone except the only place it happens is inside my house.
I wish that TMO offered a microcell.

There is no reception problem, I have had the phone working here for awhile and it always has full bars, like I said I can hop in the car and drive a couple miles and it works just fine. Tmobile finally got back to me today and said they are having their Engineers troubleshoot the tower that provides service when I am home. I hope they get this fixed soon, they said 72 hours.......

It's that anti-cellphonereception chemical they put into paint!!

[Q] Anyone else's Nexus take a long time to get data connectivity?

Like the title states. When I was doing the initial setup with the phone I actually had to connect it to wifi since the 3G connection hadn't been established. Roughly 3-4 minutes before it connected. Same issue across roms and even the leaked radio. This happens during android os startup and airplane mode.
Maybe I'm spoiled but my OG droid data connection was usually established within 30 seconds. The Droid Razr I was "renting" was the same way.
Is anyone else's LTE nexus this way? Is this another quirk of the phone. Or do I have a defective radio?

Mine takes maybe 30 or 40 seconds for a 3g connection. Way way longer than my Sprint phone does.

Try changing to cdma only, instead of cdma/lte, see if that helps. its possible the phone is looking for a 4g signal first, or if its too weak to connect, then reverts to 3g
I've found personally, that initially, turning off/on data, both 3g and 4g take longer to connect, but if left on and running, it switches back and forth as necessary & quickly

When I switch to cdma only, it takes a long time to connect . Same when I switch back to lte.
Sent from my Galaxy Nexus

I live in a strong LTE region running the leaked 4.03 radio. Where the signals are strong, eg in the middle of a street, the radios are great. But surprisingly, this combo experiences 3G+4G holes where my Sprint phone works fine on 4G.
Switching WiFi to strong 4G signal seems to take 20-30 secs.
Switching from no signal reception to good 4G signal seems to take well over a minute.
Btw, not sure how long it takes to switch to 3G. It does happen when I enter buildings but I am not watching the signal indicator change.

dynamicpda said:
But surprisingly, this combo experiences 3G+4G holes where my Sprint phone works fine on 4G.
Switching WiFi to strong 4G signal seems to take 20-30 secs.
Switching from no signal reception to good 4G signal seems to take well over a minute.
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i've been using the leaked radios for a bit, and have had significantly faster switching wifi->4g, its almost instant now, and even for 2-3 bars. No signal->4g does take me a bit too tho.
As for Sprint, they have different antennas, and could be covering different areas, and on different towers than verizon

I've noticed the slow switch on both 3g and 4g. This includes switching from 3g to 4g and vice versa. Inside buildings or in the streets, it doesn't seem to matter.
The city I live in was one of the test markets for 4g, and I can get a 4g connection pretty much everywhere but the outskirts. 4g speed tests aren't in the wow factor like the Droid Razr, I mostly manage 10-12mbps down and 1-6mbps up.
I think I'm going to take a little trip around my local Verizon wireless and hit their test units to see if the same thing happens.

Network completely dropping randomly?

This is happening multiple times a day, randomly.
Ironically, I was at a vzw corporate store today getting a half off extended battery and incipio case, and it happened, i was driving home in the middle of a bluetooth call and it dropped, and while at work it drops every 10 minutes.
What the heck is going on? It even drops at my house, where i have "-93dBm" of 4G service... the notification bars will start at full 4G to none, grayed out.
This is extremely annoying and making my phone "work" a lot, thus killing the battery. It didn't make it through a 12 hour day today being in my pocket about 7/8ths of the time!!

al2x said:
This is happening multiple times a day, randomly.
Ironically, I was at a vzw corporate store today getting a half off extended battery and incipio case, and it happened, i was driving home in the middle of a bluetooth call and it dropped, and while at work it drops every 10 minutes.
What the heck is going on? It even drops at my house, where i have "-93dBm" of 4G service... the notification bars will start at full 4G to none, grayed out.
This is extremely annoying and making my phone "work" a lot, thus killing the battery. It didn't make it through a 12 hour day today being in my pocket about 7/8ths of the time!!
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I just exchanged my Nexus a couple of days ago, because of this exact issue. So far, I haven't had a single random network drop on the new Nexus.
(Tech support suggested going to a VZW store and having them swap the SIM card out, so I did. As soon as I made it back out to my car, the network dropped again. As I was walking into the Target across the street, it dropped again, so I turned around and went back to the VZW store. They swapped the phone out.)

YES. Had no problems until today (at least that I've noticed). Now its not getting any data. I get strong 4G at my house too. Right now its saying I have 3G but its not giving me any data connection despite what the icon says. Might have to take it back

I had no problem until today. This morning the network dropped out suddenly and hasn't come back. Plugging it in, pulling battering, switching all data settings (LTE/3G, roaming, etc) has no effect. I may be taking a trip down to the Verizon store over my lunch break...

There is an issue with Verizon 3G/4G data right now, it seems to be down nationwide.

I live in Arizona / Phoenix and am experiencing the same. I have no data (3g or 4g) and haven't since my commute into work today. It's frustrating. This isn't a Verizon 3G/4G data issue nationwide. My coworker next to me is using a Droid Bionic and has both 3G and 4G working fine. We just loaded up several sites on her phone. I'm starting to get peeved.

iamsupreme said:
I live in Arizona / Phoenix and am experiencing the same. I have no data (3g or 4g) and haven't since my commute into work today. It's frustrating. This isn't a Verizon 3G/4G data issue nationwide. My coworker next to me is using a Droid Bionic and has both 3G and 4G working fine. We just loaded up several sites on her phone. I'm starting to get peeved.
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Yep another co-worker with a verizon phone also has data coverage while mine has been skipping out this morning.
That being said, this is not a scientific poll since 99% of the people posting here have GN phones. Are there any reports of problems in the other forums?

Though several articles, this one being one (http://www.gottabemobile.com/2011/12/28/verizon-suffering-another-nationwide-4g-lte-outage/) are showing that there is, in fact, another nationwide 4g LTE outage. Maybe her Bionic just switches to 3G properly and my Nexus isn't? I changed it from LTE/CDMA to CDMA and powered off and on the radio. No luck.

iamsupreme said:
Though several articles, this one being one (http://www.gottabemobile.com/2011/12/28/verizon-suffering-another-nationwide-4g-lte-outage/) are showing that there is, in fact, another nationwide 4g LTE outage. Maybe her Bionic just switches to 3G properly and my Nexus isn't? I changed it from LTE/CDMA to CDMA and powered off and on the radio. No luck.
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Thanks for that. My data just came back up and it's 3G only now and seems solid. Perhaps Verizon has taken down their LTE network to prevent phones from trying to connect to it until they resolve the problem.

I'm getting a 3G icon when I turn off LTE/CDMA and put it at CDMA only. But actually trying to load anything with data (web, Facebook, YouTube) doesn't work. No connectivity.

Yeah, Droidlife reported on the outage for ALL 4G phones. My Thunderbolt is also affected. This is one of the reasons why my paranoid self is happy that I have two phones: one on T-Mo and one on Verizon.

Called VZ, data down in Miami. Phone is heating up like a mf, good 'cause it's freaking cold here like 68

lioryte said:
Called VZ, data down in Miami. Phone is heating up like a mf, good 'cause it's freaking cold here like 68
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I want to live somewhere where my big problem with the weather is that it's 68 degrees. Anyway, glad to hear it's a network issue and not my phone.

Random signal drops in Baltimore as well. Especially after a phone call. On second phone and still same issue.
Sent from my Galaxy Nexus using Tapatalk

Here in Rhode Island, I lost all signal for about 4 minutes, had 3g for about 5 minutes, then got 4g on and off for about 5-10 minutes.
As of now i'm solid 4g with no disconnect or 3g
its probably because of that 3.7+ MILLION devices activated for christmas
be glad we don't have RIM with a 3 day blackout

Yeah, and the problem with the GNex is that, unlike other phones, it doesn't seem to have a "no 4g, only 3g" capability, so when 4G goes down, we have no data whatsoever. Older phones that can switch LTE off are able to hook onto 3G.

SomeGuyDude said:
Yeah, and the problem with the GNex is that, unlike other phones, it doesn't seem to have a "no 4g, only 3g" capability, so when 4G goes down, we have no data whatsoever. Older phones that can switch LTE off are able to hook onto 3G.
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Very very much untrue.
Sent from my Galaxy Nexus

SomeGuyDude said:
Yeah, and the problem with the GNex is that, unlike other phones, it doesn't seem to have a "no 4g, only 3g" capability, so when 4G goes down, we have no data whatsoever. Older phones that can switch LTE off are able to hook onto 3G.
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Settings > More... > Mobile networks > Network Mode > Select CDMA (default is LTE/CDMA) > Profit

its a nationwide issue affecting SOME LTE Verizon users.
http://www.droid-life.com/2011/12/28/verizon-4g-lte-nationwide-data-outage-happening-once-again/

I was in a costco this afternoon and it wasn't working. I originally assumed it was the metal building. Nope, Verizon's network again.

What can't Note 2 switch to 4G when 3G in use?

I've noticed a network behavior I did not have on my EVO 4G. The Note 2 can't switch to 4G when it's busy using 3G. You could be standing under a 4G tower and the phone won't switch if, for instance, you're downloading a file. My EVO 4G would switch between 3G and Wimax no problem.
Is this a hardware limitation? Software problem?

Could be a difference between Wimax and LTE connections. I have never noticed this issue, but I also only saw a Wimax signal a couple of times. I had the OG Evo and then the Evo 3D, but rarely ever saw a Wimax signal. With my Evo LTE, my entire area is blanketed with LTE, so I'm never switching between 3G and LTE in the middle of a download. I'll try to test out this scenario within the next few days with both my Note 2 and my Evo LTE. If I do have any weird findings with either, I'll call Sprint and activate my black Evo LTE and see how it handles the data connection transition. That way I will have tested the specific data transition with 3 different devices, and should be able to come up with a some what conclusive decision with what's going on. If someone else has a Wimax device and is in a Wimax area, it would be nice if they could compare that side by side with their LTE device! I still have my Evo 3D, but like I said earlier, I'm not near a Wimax area for testing...
Sent from my White Note 2 using XDA Premium

Hmmmm. Interesting. I never noticed that behaviour on my NII or EvoLTE. I still have my E4GT laying around so maybe I'll activate it and see what happens. I've been lucky in my area seeing as we had WiMax coverage even before the release of the OG Evo and are pretty well covered with LTE.
Sent from my SPH-L900 using Xparent Skyblue Tapatalk 2

I've noticed OPs issue. The same kinda thing will happen when I am driving away from my home and my phone tries to hang on to my signal booster. Once I actually loose the connection my phone will jump onto 3G and usually by that point I have Pandora opened and trying to play. It wont switch to LTE until either the song is fully buffered (witch in this case doesn't happen because the 3G at this point sucks (connected to tower)) or I go to Airplane Mode and shut off all radios and then turn off Airplane Mode. The LTE will come right up and I have no data issues.
If I'm not near my signal booster, like at work, and I am at my desk getting LTE, when I put my phone in my pocket and walk around it will drop to 3G. When I come back to my desk and try to start using an app that requires data, it wont jump back to LTE until I either close the app that is pulling the data, or do another Airplane Mode toggle.
I think all it is, is just the scan times between searching for an LTE signal (I think like 30 seconds and not every 1 second) to save battery. I could be wrong though. It is annoying to have to go through this routine every day though.

I've never payed attention to it before but now I do see what the op is talking about. Mine won't switch either
Sent from my SPH-L900 using xda premium

I think it's a bit random in my experience. It's it currently downloading something, it'll stay. But I've seen it switch it though while streaming a movie/show/event. I've had the GN2 get suck where it switch towers, but wasn't really connecting, which required the airplaine mode on/off trick.

spotopolis,
You hit right on the kind of scenario I am experiencing. I'm in the car listening to a streaming podcast or streaming music. And because the car is moving, the phone sometimes switches to 3G and will not get back on to LTE unless I kill all network access. It's like the phone needs a moment to breath before attempting to connect LTE.
This would not bug me so much if 3G had a data rate better than 50kbps. When I'm stuck in 3G, forget streaming or downloading anything. Very frustrating.
Trying to figure out if this is a limit of Note 2, LTE, Sprint's LTE or a bug.

It's an LTE issue. I've experienced the same behavior with 4G when I was in NY last weekend. Soon as I stopped Pandora and 3G went idle 4G came on. And no that is not an issue with Wimax devices. Coming from an E4GT and Evo 3D covered in Wimax coverage here in Hartford CT 4G automatically connects and overrides 3G even if 3G is active. However that's an issue too because the 3G to Wimax handoff sucks which leaves your data hanging for a sec. I usually have to stop my downloads and restart them while on the new 4G connection lol
Sent from my SPH-L900 using xda app-developers app

RayTrue04 said:
It's an LTE issue.
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I thought this was advanced technology. Seems to be a huge detail to miss.
However that's an issue too because the 3G to Wimax handoff sucks which leaves your data hanging for a sec. I usually have to stop my downloads and restart them while on the new 4G connection
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That would be a software issue, not Wimax problem. I had some apps that handled network switches very well. That includes going from cell networks (3G/4G) to WIFI. Perfect example is what I noticed using streaming music on my EVO 4G. (The follow is true for these apps many versions ago.)
1. Slacker, terrible making switch. 99% would stop playback.
2. Pandora, better than Slacker. Could pause during playback but would pickup if network regained soon.
3. Google Music, best of the bunch. Can handle network jumps very well. I think partly due to caching the next song while playing current song.

I thought i was the only one having this issue.... good to know.

I've never had this problem. My n2 has no problem switching from 3g to 4g. When I'm driving while listening to Pandora, I hit areas that only 3g and phone shows 3g. Then afterwards it goes back to 4g with no problem. It does it effortlessly and on a daily. I live in Chicago and we are lte for the most part but I know certain suburbs do not have 4g and my n2 switches without a problem. Guess I'm lucky.
Sent from my SPH-L900 using xda app-developers app

Interesting thread. I'm seeking an answer too. FWIW I don't own a Note 2 but also noticed this behaviour, with my SGS3. I created a thread some time ago (http://forum.xda-developers.com/showthread.php?t=1989176) but there was little interest, which surprised me, considering how annoying it can be.

(Q) LTE

Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.

ajr0312 said:
Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.
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Not a root problem. Weird part is it only seems to happen to me in areas where there is really strong 4g, like in my house. At work, I am on a weaker 4g signal all day long without issues.

Try updating your profile and prl. Also make sure you have CDMA/LTE selected under mobile network.

ajr0312 said:
Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.
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I have the same problem. It keeps dropping my signal to 3g..even when it's on 3g sometimes it loses the 3g signal and reconnects to 3g.. the areas I go always have band 41 ...my previous phone was the nexus 5 and the signal was great...never drops connection like this...I thought it was only my phone as I haven't seen someone with the same problem in the forums. I'm in nyc area

Hopefully there is fix soon, it's very annoying to have this data issues.

Its not just your phone mine does the same thing at my work. I switch between multiple different band 25 26 and 41 towers as well as 3G towers. It occurs while the phone just sits on my desk. Theres a couple other threads discussing this. To my knowledge no one has any usable suggestions to help with this.
Sent from my SM-N910P using XDA Free mobile app

dmisselh said:
Its not just your phone mine does the same thing at my work. I switch between multiple different band 25 26 and 41 towers as well as 3G towers. It occurs while the phone just sits on my desk. Theres a couple other threads discussing this. To my knowledge no one has any usable suggestions to help with this.
Sent from my SM-N910P using XDA Free mobile app
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My Note 4 does the exact same thing. I'm in a fully covered spark area, my old s4 always connected to lte with about 10 meg download. Awesome data offensive note 4 gets 3 to 5 meg download.. sometimes only getting 0.01 upload speed. That's the only thing that consistently bothers me about this phone. Oh yea it also constantly drops lte... to 3g. Feels like it's data is going through a dial up modem. I'm going to check the Sprint forums and see if I can find any good info.

Happened once in one place i was. Lower LTE signal and the phone kept dropping it and falling back to 3g, while my gf Lg G2 kept the LTE connection. I'm thinking they need to tweak the radio software in a future update.
Sent from my SM-N910P using Tapatalk

I've noticed that all the TriBand devices (Anything with Spark) switch to 3G for a bit then connect back to LTE/Spark. I haven't heard anything from work about this issue yet. I've also noticed its areas that have low Spark signal and high LTE signal.

My guess is it's a handoff problem. I will see all bars but LTE grayed out while riding the metro.

There is another thread touching on this too....I am having terrible LTE connection. My wife, who is an iPhone 6 user, gets 4 bars (or circles? lol) of LTE while I can sit next to her with 0-1 bars LTE or 3 bars 3G. I love this phone too much to complain alot about this but I am confident Sprint/Samsung will release an update to fix this.

The exact same problem occurred when the LG G2 got the spark update. It took 8 months for sprint to issues update that was specific to the LTE problem. I had to factory wipe before and after the update to get it to stick. The only difference is before the G2 was updated a toggle to airplane mode would bring the LTE back. That trick does not work on this phone. I will also add I drive alot at my job 6 hours plus a day. I go to the same spots to do paperwork in my truck. My Note 4 will not stay on LTE/Spark in locations where my G2 had a constant 10-15mbps connection.