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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Click to collapse
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] How's your signal strength? [LTE]

Hey all,
I'm curious to how your reception is on the VZ GNex. I still have my Rezound here and it seems like I'm getting about -20db worse on the GNex compared to the Rezound. I'm curious - has anyone else experienced this?
Thanks,
Super

yeah, and it is killing me. In the same spot in my room I had my rezound, I had MUCH MUCH better signal strengh. I could keep 4G all day, which is why I switched from sprint to verizon. Thunderbolt, Droid Bionic, Rezound, all worked fine. The GN looses 4G consistantly. This might be a deal breaker for me. I am going to try a custom rom in a min when it finishes downloading, but I doubt that will help. Also am on 4.0.2.
on the thunderbolt there was a setting that allowed us to change when it "lost" 4G signal. I.E. it would allow the phone to pick up a weak signal. Does anyone know if there is a setting like this? I know the signal isn't weak in my house from the previous phones, so it is either a setting like this, or the GN has a really crappy radio...

The 3g and 4g on my Nexus is very bad and not even usable. It is either dropped or barely working. Without wi-fi my phone would have been useless today.
If this isn't correct quickly I will have no choice but to go back to my Thunderbolt which was great!

Service at my apartment just sucks but it's getting the same reception as my OG Droid

I had a rezound and was certainly getting a better signal, 2 things I noticed on the rezound was the battery door actually had antenna relays in it, and also there was 3 settings on the rezound for network performance (performance, normal, and battery saver)

I get horrible signal strength in spots, like on my way home from work there are several short distances where it just drops the signal all together.
At home, my phone seems to just drop connection completely and it's having a hard time picking it up again. Noticed this morning it had been without network access all night. Rebooted it and everything was OK (strong signal) in the exact same physical location.

does any body know how to update roaming with this phone I tried *228 but that didn't work

I am having similar issues in regards to network dropping out. I can understand why 4g would -being limited coverage and all- but 3g should seamlessly pick up where it drops off, plus my voice signal is much lower -100dBmw vs -85/-90dBm which I got with my OG Droid.

jnyce87 said:
does any body know how to update roaming with this phone I tried *228 but that didn't work
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Click to collapse
You can't update roaming on LTE devices, as the sim card automatically does it. What you can do is a "sim reset" type thing.
Power off, and leave your sim card out for like 5 minutes. Put it back in and turn on the phone. According to multiple sources, this will cause the sim to have to re-register on the network, thus refreshing/updating your privs.

Rezound is way better reception wise. Matter of fact, the Rezound is better at a lot of key things! Ima give this a chance but I gotta say I miss my Rezzy!!
Sent from my Galaxy Nexus using Tapatalk

WOW.... my Nexus data was very bad and almost unusable, but now it is fixed!
I didn't want to, but I did a factory data reset and it resolved the data issues. Everything is solid connections now and holding steady. Before the signal was bouncing all over the place.
Give the factory data reset a try if you are having issues. Yes you have to start over but it's better than having a phone that doesn't work.
Phew... now I am happy again! I really thought I was going to have to go back to my Thunderbolt.

OK. I did some digging. I recommend all users download an app called sensorly. It would appear that the reported signal strength by default is 4G. Currently, my 4G is is teetering at -100dBm to no signal and that shows on my phone as no bars. However, I discovered that my 3G is at -90 dBm (excellent coverage). From what I have researched it would appear that the phone has issues handshaking between 3G and 4G which I am sure will be corrected in an OTA update.
If I go to Settings-Wireless & Networks-More-Mobile Networks-Network Mode-CDMA/LTE and switch to CDMA only my bars come up and my dBm appears normal in settings.
I am pretty confident this is a LTE/3G handshake issue. Just like when you leave your home and you are still barely connected to wifi and the phone doesn't know what to use, so all of your apps fail trying to connect. I think it is just the same.
Anyway, I hope this helps others. It has made me less neurotic finding this out.

I had the rezound and returned it because of the headphone noise. Got the nexus and it gets terrible signal and speeds where the rezound was great. Called Verizon and they are sending me another Rezound and told me it shouldn't have the audio problems. We shall see. I just know that the nexus is unusable in my house due to reception.
Sent from my Galaxy Nexus using Tapatalk

[Q] How do I know I'm on 4G?

I'm in Chicago (both in the city and suburbs), and my S3 always shows "3G" in the notification area.
I know AT&T has an LTE network here, so shouldn't it say 4G or LTE? Could this be a problem with my account--or even the phone?
Thanks.

somewhere in the settings should be a network selection to choose between GSM/LTE(4G) and GSM(3G) only....at least on the Verizon phones there usually is, of course it says CDMA/LTE(4G) or CDMA(3G) only

eelton said:
I'm in Chicago (both in the city and suburbs), and my S3 always shows "3G" in the notification area.
I know AT&T has an LTE network here, so shouldn't it say 4G or LTE? Could this be a problem with my account--or even the phone?
Thanks.
Click to expand...
Click to collapse
I have ATT GS3 and it says 4GLTE tiny icon, if you are sure you are in LTE zone and only getting 3g , call AT&T or go to their store , sim could be old/wrong and or your account was not properly activated.
When i got my GS3 i wasnt getting any data at all , called AT&T and they sorted it out.
Run speedtest see what you getting ?

I have at&t in chicago as well. I live up in lake county and work in des plaines. I was also at navy pier a few weeks ago. Never had anything other than 4g or LTE. I literally have never seen the 3g icon on my phone
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Thanks for the replies. I'll give AT&T a call.
I did run speedtest, while the phone was displaying 3G. the download speed was 7686 and upload 5704.

Well, I called AT&T and they couldn't find any problem. After 20 minutes, they said, "There's a network outage reported in Chicago, so that must be it." I asked how long the outage has lasted, and she said 17 hours. But I've had the phone for four days, and have never seen anything but 3G.
At any rate, they said I would have to call back in a couple of days. That conveniently got the rep off the phone.

I live in a 3G area, and it says 4G on my phone. Makes me feel like they are BSing us to believe 4G is everywhere.
Only time it has been off of 4G is when I"m in an Edge area. Speaking of which, I found it interesting that while driving up I90 in Wyoming (didn't look like anything was there for miles and miles), the data speeds were great. I was so surprised. Driving the much busier highways in the midwest, it is Edge, and it sucks.
Sorry...went off topic.

eelton said:
Well, I called AT&T and they couldn't find any problem. After 20 minutes, they said, "There's a network outage reported in Chicago, so that must be it." I asked how long the outage has lasted, and she said 17 hours. But I've had the phone for four days, and have never seen anything but 3G.
At any rate, they said I would have to call back in a couple of days. That conveniently got the rep off the phone.
Click to expand...
Click to collapse
Your account does need to be flagged as LTE or you won't get LTE service. I'm up in Gurnee and all over Chicagoland has pretty good LTE coverage.
Also, check your APN that you're on the "PTA" and not the older APN settings. If you see anything about cingular wap, you're on the old one.
I recommend going to an AT&T store, it's harder to blow you off when you're up in their face.
I have friends in Aurora, Lombard, Lyons and I used to work downtown; I always had great LTE signal out and about as well as my home area of Gurnee/Libertyville.
Lastly, AT&T distinguishes between "4G" which is HSPA+ and "4G LTE" which is their LTE network. Unless you're running a custom ROM with different icons, you'll have an E for edge (2.5G, total ****), 3G for a 3G area that hasn't been upgraded, 4G for a 3G area that's been "backhaul upgraded" to HSPA+ and 4G with a little LTE beneath it for an LTE area.
For me, I can tell speed-wise between "4G" and "4G LTE" mostly by the upload speed. HSPA+ (4G) I never see above 1.2Mbps or so, whereas on LTE I get up to 5Mbps roughly. Sad story is the LTE network in the Chicago area is the slowest of their LTE networks that I've seen anyway. I get so jealous of people in TX and whatnot that get like 24Mbps!
Sorry for the rambling...

One weird thing...when I click on my results in speedtest, it lists the network as LTE, even though the icon always shows 3G.
So maybe it's connecting to LTE, but not showing the correct icon? Does a download speed of 7686 seem faster than 3G?

To follow up, in case this helps anyone...
I spent another half hour on the phone with AT&T--level 1 and level 2 tech support. (The level 2 guy was much less informed than the level 1 woman.) Their bottom line was that I should exchange the phone.
However, when I use the network signal info app, it says I'm on the LTE network. So, I think I have an icon problem, not an actual network connection problem.
I think I'll just live with it, rather than exchange the phone.

[Q] Sprint's S3 phone not compatible with 4g?

Hi there,
I have had my Sprint Galaxy S3 for quite a while. This pass month I see that in my area, i'm getting switched to 4g rather than 3g. I was thinking to myself, this is great, they are rolling out the 4gLTE soon and i'll finally get the speed that i'm paying for. After a couple days, i noticed that the 4g signal was getting cut off. Cut off as in i don't get any data signal at all. I would think that if i can't get 4g signal, the phone will switch over to 3g but that's not the case. My data signal is totally gone for about 5 to 10 minutes and comes back as 4g. This was getting very fustrating as i will be browsing the internet and then suddenly not get any data and would need to wait.
So i decided to call Customer Service. What the CS told me was that the S3 is not setup for 4g WiMax but setup for 4gLTE. But I told the CS that i'm getting 4g WiMax on my phone but it gets cut off for a long period of time. CS understands that we can get the signal but the phone doesn't react good with that signal, therefore, i'm getting cut off for period of times.
So the solution that the CS gave me to get constant data signal is to change my "Preferred network mode" from LTE / CDMA to CDMA only. I was taken back about this because I feel like i'm downgrading because of Sprints issues.
My question is, anyone else having this issue and can't find how the 4gLTE icon looks like for the Spring Galaxy S3, mine only says 4g, is that the LTE signal?

The s3 only supports lte, so yes the 4g icon is lte. No the s3 can't connect to wimax it can't even see wimax as an option since it doesn't have the hardware. It would be like trying to use your bluetooth headset to connect to your wifi Internet, just isn't gonna happen no matter how many different ways you try.
☆SoA: Son's of Android™☆
I like to break stuff!

Most likely they are working on the tower your connecting to. Anytime the do work upgrades your signal including data can go wacky untill the work is completed.
No Galaxy S3 on any carrier can get Wimax 4G. These phones can only get 4G LTE. And i believe T-Mobile gs3 can't get LTE not 100% sure but i believe so.
Turning your phone to CDMA only will lock your phone into 3G only.
Sent from a planet far far away.

As Evil said, when you see the 4G icon its connected to 4G LTE. Its not like the iPhone that will say 4G LTE. Im having the same issue as you are. Its great that LTE is rolling out in my area, however they are still updating towers. So I don't have great LTE speeds yet. So I've turned off LTE on my phone until there update is complete.
Sent from my Clean Bean v2.6 Galaxy S3

LTE and 4G (ATT H810) issues

Anyone else on the ATT G4 having problems with LTE connectivity? In areas where I'd usually get 5 bars of LTE service, a majority of the time I get 2 or 3 bars of Edge service. Putting it into airplane mode and back out doesn't help, turning mobile data on and off doesn't help, and neither does removing the SIM card (and reseting the phone in the process). It seems to come and go whenever it wants to.
Sent from my LG-H810 using Tapatalk

All I can guess is, it's probably just the ATT network itself. They did some upgrades around here a while once Cspire started hyping their fiber optic network and I noticed on my older phone that in areas where I used to get 3G I was stuck getting edge. Even with my G4 I can park in perfect view of a known ATT tower and it'll hit 4G and within a minute be down to 3G - same with strength. Get 5 bars, don't move, no data, no call, and it'll drop down to no bars but still connected and bounce around, usually settling at 2 or 3. Even though ATT says they have full LTE out here I rarely actually see the LTE logo display in the status bar.
I've been using OpenSignal to try to map out coverage areas though, been pretty handy in finding towers and chasing stronger signal

Hi sir
I m using lg g4 h810 AT&T it was working well one day i put a memory card in it signal disappear never came go to software and hardware experts but nobody has solved my problem all other functions of cell phone working properly