Develop Bugs

4g/3g data connection

It seems whenever I don't have a 4g data connection, I'm not getting any data connection. Anyone else have this problem? When I'm in builldings I never get a data connection. Even when I'm outside I rarely get data connection unless it's a 4g spot. I know someone with a GN and side by side, he gets a connection at work while I have gray bars. Is this prevelant among most of you all? I'm on Verizon if that makes a difference.

Yes, I have this issue as well when I am at work but only when I have wifi turned on. With wifi on I get no 4g connection inside the building and the phone won't drop down to 3g, just gives me gray bars and no data. Manually switching from LTE/CDMA to CDMA restores my 3g data connection. Turning wifi off enables the LTE data connection. I assume it's trying to use the building's wifi network that I am not authenticated to for some reason. It's quite annoying and seems to be draining my battery.

My 4g reception sucks. I am rather disappointed. I canceled my ATT account and paid the ETF to switch to verizon for the GN. I am in plano tx which is in the Verizon LTE area and i dont get any signal except in a few spots on the highway. I work in Richardson, which is also in the LTE area, and i dont even have 3g in the building. I dont have any signal when i go deeper into the building away from the windows. I am running stock 4.0.2. I hope this gets better. I am already regretting dropping ATT.

jason.hamilton said:
My 4g reception sucks. I am rather disappointed. I canceled my ATT account and paid the ETF to switch to verizon for the GN. I am in plano tx which is in the Verizon LTE area and i dont get any signal except in a few spots on the highway. I work in Richardson, which is also in the LTE area, and i dont even have 3g in the building. I dont have any signal when i go deeper into the building away from the windows. I am running stock 4.0.2. I hope this gets better. I am already regretting dropping ATT.
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Strange. I have excellent 3G and 4G signal in buildings, coming from Sprint I had non-existent data everywhere, especially indoors.

Just as an fyi. I went to Verizon to try to get a new phone. They told me my sim card was bad. I got the phone on the first day and they said they had issues with the first sim cards with the nexus. My wifes has the same problem.
New sim card, NO MORE connection issues. Yeah! Anyone else who has this issue might try this. I am now getting 3g and even 4g connections inside now.

ill go to the verizon store after work and switch sims. Just got it on 1/1. Ill go to a different verizon store to make sure its not a bad batch lol.

Wasnt the SIM card. Still getting crappy signal strength. I am going today and replacing the phone. If that doesnt work, i am going back to ATT skyrocket...

spencer88 said:
Strange. I have excellent 3G and 4G signal in buildings, coming from Sprint I had non-existent data everywhere, especially indoors.
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In my office I get very weak to no 4G signal, so that the phone is constantly switching from weak 4G down to 3G and causing connection disruptions. I usually just disable LTE and use CDMA only mode to fix this. I have heard that a LTE signal should penetrate inside of buildings better, but apparently my workplace is almost impenetrable. We have a Verizon 3G repeater in the office or I would get no usable signal at all.
Spencer, what kind of speeds are you getting with LTE in the Columbia area? It seems like I got better speeds when I had my Rezound than I'm getting with my Galaxy Nexus.

jason.hamilton said:
My 4g reception sucks. I am rather disappointed. I canceled my ATT account and paid the ETF to switch to verizon for the GN. I am in plano tx which is in the Verizon LTE area and i dont get any signal except in a few spots on the highway. I work in Richardson, which is also in the LTE area, and i dont even have 3g in the building. I dont have any signal when i go deeper into the building away from the windows. I am running stock 4.0.2. I hope this gets better. I am already regretting dropping ATT.
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I've had the exact opposite experience in Dallas. I switched from AT&T a year ago. I couldn't even make calls in my house. (I live in Lakewood) I had to go upstairs or outside. As far as data goes even on just 3G the Verizon speeds are much faster. I've done quite a few AT&T vs Verizon 3G side by side tests and Verzion has won every time. 4G is just a bonus for me. When I get a 4G signal there is no comparison. My coworker and I did a speed test on Tuesday at DFW. His iPhone 4s on AT&T vs my Gnex. I was getting 10-15 mbits down and he was getting like 2-3

3G Data
I am having the same exact problem. I thought it was related to airplane mode, I have it turning on at midnight and off at 6am. In the morning, if there is no Wifi and the phone is in 3G, I can't get data. Restarting gets data back, but I'm looking for a more elegant solution than that.

I'm having HUGE data issues, see:
http://forum.xda-developers.com/showthread.php?t=1421440

just a quick question. are you guys running custom ROMs/kernels? if so, please add that in your post.

none at all here.

Any reception signal issues with AT&T Samsung galaxy s3

Some of the people who own a the S3 on Verizon are reporting issues with reception between 3G and LTE especially the handoff between CDMA and lte. Is anyone who has this phone on AT&T experiencing similar issues?

I'm not having any issues using the LTE apn (default).

giper54 said:
Some of the people who own a the S3 on Verizon are reporting issues with reception between 3G and LTE especially the handoff between CDMA and lte. Is anyone who has this phone on AT&T experiencing similar issues?
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Perfect att reception here
AOKP jellybean by TGFY

i notice a definate death grip (i can verify this by checking the dBm under status in settings) and i also tend to see my data switch between h, H+, and 3g alot.
not in an LTE area

Sprint Galaxy S3 network connection issues
Good day everyone. I just recently purchased a New Galaxy S3 from a local Spint store. I have been a loyal Sprint customer for 15 years. I have owned many different phones (Star-Tac, Sony, Touch-pro 1-2, Evo, EVO 4G) Over the past 2 weeks since buying the S3, I've noticed a SERIOUS drop in network connectivity, both Data & Cell for absolutely no reason. Now, stop me if I'm wrong, but on my Evo 4G, I could connect to the internet EVEN if I didn't have a 3g signal... As long as I had Cell bars, I could access the web no problem. So the S3 is giving me some headaches and I've seen on other forums that others are too. These people are on diffferent carriers too.
So here's my issue. When I'm in a GOOD STRONG Sprint network, I've been attempting to access the web (Google Store or You-Tube) and have seen the 3g or 4G icon on the bar show data up/downloading then WINK, they dissappear and I get a "No connection RETRY" window. I've made many changes, selected CDMA instead of CDMA/LTE, vice-cersa. I've updated PRL, Profile, Firmware and even have the new Jelly Bean 4.1.1
I've contacted Samsung and "Chatted" with a technician, but this person had NO clue of this issue... I gave them the links to this and other Android forums...
So do I take it back? Revert back to my Evo? I have to say, the speed and versatility on the S3 when it's good, is GREAT, but I'm not one to have some half good, especially one so expensive...
Any imput is appreciated... :fingers-crossed:

GS3 on ATT in Austin Tx
giper54 said:
Some of the people who own a the S3 on Verizon are reporting issues with reception between 3G and LTE especially the handoff between CDMA and lte. Is anyone who has this phone on AT&T experiencing similar issues?
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I get stellar reception and speeds in major cities and highways throughout the state. Honestly I've never seen my phone drop to 3G but I'm not in rural areas often. I have see speedtests as high as 65mb down in Austin.

Nope nope nope.. All well n good
Sent from my SAMSUNG-SGH-I747 using xda premium

No Problems Here
I have an ATT S3 and I haven't had any noticeable problems.

Great reception with my AT&T SGS3
Sent from my SGH-I747 using xda premium

Out in a 4G area here in Minneapolis, MN. It might have been a fluke with CM10, but my signal would cut in and out every 30 minutes or so. Flashed AOKP and it works fine, but it was weird.

[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

Opinions on sprints network and upgrading to the S4

So as I am sure many of you will be doing eventually. I and thinking about getting the S4. Only issue I am having is Sprints network. I am really debating in my mind if sprint is worth the cost considering they have one of the slowest networks. I have been thinking about going to t mobile since most of my phone use is in major cities in the US, with and occasional use in the Caribbean.
So will you be staying with Sprint or moving to a new network?
Sent from my SPH-D710 using xda premium

I get good wimax and this phone does everything. S4 is S3 on steroids so I am thinking about passing for S5!

Mship said:
So as I am sure many of you will be doing eventually. I and thinking about getting the S4. Only issue I am having is Sprints network. I am really debating in my mind if sprint is worth the cost considering they have one of the slowest networks. I have been thinking about going to t mobile since most of my phone use is in major cities in the US, with and occasional use in the Caribbean.
So will you be staying with Sprint or moving to a new network?
Sent from my SPH-D710 using xda premium
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i've already moved from Sprint over to Verizon.. I live in nyc and for me Sprint just sucks out here, the 4g is like 3g and the 3g is like 1x. Lots of dropped calls too, so i flashed over to Verizon. Much better network IMO. T-mobile is good to my g/f has them, great 4G speeds.

It depends on where you spend most of your time. The Sprint network is great in some places and sub par in others. We dont have any official 4G service in KY and 3G is sometimes questionable, but I lived in TX last year and had great service. I occasionally get unofficial wimax here and have no interest in switching phones until LTE arrives. My wallet can't handle Verizon so if I switch service in the future it will probably be to prepaid or back to TMO.

I personally think you should drop sprint like a rock because I have sprint out here in Detroit and their empty promises of 4G for the last 2 years has been nothing shy of an insult, not to mention their signal sucks horribly out here and their 3G speeds rival that of Dial-Up, and that's if you're lucky enough to get data over the 3G connection at all...
T-Mobile also has one of the smallest 4G networks (from what I've heard, don't know how true that is), and I've heard of nothing but problems from the few people that I know that own a T-Mobile phone. My other friends with AT&T never have a single issue, and my other friend with Verizon also has absolutely no problems with them what-so-ever, so I'd say go with AT&T or Verizon - I know I will be as soon as my sprint contract is up in a year.

TMO's LTE network just launched I think so it's naturally almost nonexistent. Their HSPA+ network is more than enough though.
Sent from my SPH-D710 using xda app-developers app

For those with bad call & data connections, it'd probably be best to switch to a different carrier. As for me, I switched to Sprint from T-Mobile last year because T-Mobile had crappy call quality and connection problems. Fortunately, Orange County has really good 4G WiMax coverage and speeds (my 4G WiMax is faster than my friend's at&t LTE speed on his Note 2) and we're due for 4G LTE in a month or so.

New York City is an active Network Deployment market that is well under way by Alcatel-Lucent. The only places where I wouldn't upgrade to an LTE device on Sprint are in areas where NV has not yet begun and won't begun for an another few months (and then it'll take a month or two to get the stuff up and running after they begin).
Look here to see what other people reported..
http://www.sensorly.com/
and look here for more info about Network Vision.
http://s4gru.com/index.php?/topic/1901-network-visionlte-new-york-city-market/

It depends on how strong the T-Mobile network is in your area. In mine, it isn't that good. I have this phone, s2, and I have a lte backup phone. My area does have lte coverage but it's not completely saturated yet. I have 4g lte at home and an area of one of my jobs. My best dl speed test with lte has been just shy of 4000 KB. There are a lot of if's to consider if switching to another carrier. Do your homework first before making a final decision. There's an app out there, I forgot the name, that shows the coverage area on a map with different carriers and modes. I'd suggest checking that out to gather more information. Here you go. https://play.google.com/store/apps/details?id=com.sensorly.viewer

Your question is very area dependent. I live in Pittsburgh PA there's no lte in my area yet but it's coming. My 3g/4g is awesome though, I rarely find myself running 4g because the 3g is so good. I will be getting the S4 but not right away, I'm gonna wait for the price to drop and development to pick up.

Thanks for all the responses. I think I'm going to stay with the S2 for at least 2 two 3 more months or so before making a switch. I want to see what sprint has to offer in my area of NYC.
Sent from my SPH-D710 using xda premium

In my area Memphis, TN we have bad sprint coverage and i don't like it. Internet is very slow and sometimes calls don't come through

optimummind said:
For those with bad call & data connections, it'd probably be best to switch to a different carrier. As for me, I switched to Sprint from T-Mobile last year because T-Mobile had crappy call quality and connection problems. Fortunately, Orange County has really good 4G WiMax coverage and speeds (my 4G WiMax is faster than my friend's at&t LTE speed on his Note 2) and we're due for 4G LTE in a month or so.
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inland empire is terrible wish it was like orange county...
i travel to and from inland empire, orange county, SGV and Las vegas alot and inland empire is terrible which is were i am the most of the time...
was thinking of going to tmobile but worried about there coverage.. some people say its good but others have nothing but problems.. wonder how there service is away from the major cities.. Verizon is the best but too much .. thinking of flashing phone to verizon prepaid but would only get 2-3mb download but still alot better than sprint in the inland empire.

Does Sprint Note 4 have radio issues?

I have a Sprint Note 4. In many locations I can pickup 4g LTE/Spark but my speeds are not very high. I currently moved and now can barely pickup LTE and get very slow 3g speeds which which both keeps getting disconnected and losing signal. Whenever I do pickup LTE I gets speeds under 2mbps but like I said, it will lose connection. Now I know people are thinking it's just my new location.... I just recently upgraded my wife's line to the Sprint Note 5. Her Note 5 in the same location picks up LTE/Spark and never drops while getting speeds around 21-27mbps.
Is anyone else having same issues? Are there any ROMS out there with radio updates that will give me good stable connections?

I believe mine has had radio issues for awhile no matter what I do. I just received a Nexus 6p and the difference with the radio seems to be night and day. I'll be doing more testing for the next 2 weeks.

imoua said:
I have a Sprint Note 4. In many locations I can pickup 4g LTE/Spark but my speeds are not very high. I currently moved and now can barely pickup LTE and get very slow 3g speeds which which both keeps getting disconnected and losing signal. Whenever I do pickup LTE I gets speeds under 2mbps but like I said, it will lose connection. Now I know people are thinking it's just my new location.... I just recently upgraded my wife's line to the Sprint Note 5. Her Note 5 in the same location picks up LTE/Spark and never drops while getting speeds around 21-27mbps.
Is anyone else having same issues? Are there any ROMS out there with radio updates that will give me good stable connections?
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Honestly, I think it is Sprint service as hard as that is for me to say as I love Sprint. I lived in Newark NJ for years, Sprint Spark is VERY strong there (Newark was one of the pilot areas for Spark). Almost every day I seemed to have different results, one day its blazing, the next not so good. Now i live in Bloomingdale NJ where there is ONLY CDMA, here is the weird part, its extremely strong, no issues, sometimes stronger than when I was in Newark with Sprint Spark (LTE). This happens on either STOCK Note 4 Touchwiz OR CM/CMRemix (AOSP). So to me it feels like it is the network and areas I am in.
Now you could say its just the Note 4 and not the Sprint service, EXCEPT the EXACT same behavior happened on my Note 2, in CDMA or LTE WITH SPARK - Touchwiz or AOSP.

GROOVYJOSHCLARK said:
Honestly, I think it is Sprint service as hard as that is for me to say as I love Sprint. I lived in Newark NJ for years, Sprint Spark is VERY strong there (Newark was one of the pilot areas for Spark). Almost every day I seemed to have different results, one day its blazing, the next not so good. Now i live in Bloomingdale NJ where there is ONLY CDMA, here is the weird part, its extremely strong, no issues, sometimes stronger than when I was in Newark with Sprint Spark (LTE). This happens on either STOCK Note 4 Touchwiz OR CM/CMRemix (AOSP). So to me it feels like it is the network and areas I am in.
Now you could say its just the Note 4 and not the Sprint service, EXCEPT the EXACT same behavior happened on my Note 2, in CDMA or LTE WITH SPARK - Touchwiz or AOSP.
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For some reason, I'm starting to be able to pickup more LTE service now. Half the day will be on 3G while other half of LTE. My wifes Note 5 has dropped in speeds to anywhere between 3mbps-10mbps but still always connected to LTE all day. -_- Starting to hate Sprint.

imoua said:
For some reason, I'm starting to be able to pickup more LTE service now. Half the day will be on 3G while other half of LTE. My wifes Note 5 has dropped in speeds to anywhere between 3mbps-10mbps but still always connected to LTE all day. -_- Starting to hate Sprint.
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Yeah it boggles me too sometimes it works and sometimes not

You have to remember network capacity and interference. These are huge factors. The best time to speed test is during off-peak hours. After 23.1 GB on unlimited plans there is a softcap during peak times. Also, take into account upgrades to the network due to Sprints Network Vision which cost billions of dollars to upgrade towers. This doesnt happen overnight. Patience ladies and gents.