Develop Bugs

1x/3g

Not sure when and with what ROM this started happening but my signal drops to 1x really frequently. 3G is always going in and out. Any ideas or fixes? Has this been discussed somewhere before? On train ride in to work so haven't searched threads yet! I flashed synergy a few days ago coming from mikg and before that gingerale..and before that cyanogen! It seems like I've had the problem since moving back to sense from cyanogen about a month/month and a half ago.
Sent from my PC36100 using XDA App

Where are you located? Have you had speed related issues?
Sprint has been having issues related to the overloading of towers with the excessive growth of data usage [with the boom of the Evo]
Towers are set to send some phones to 1x when 3g usage is high in order to alleviate speed issues for all.
That could explain your issues.

mattykinsx said:
Where are you located? Have you had speed related issues?
Sprint has been having issues related to the overloading of towers with the excessive growth of data usage [with the boom of the Evo]
Towers are set to send some phones to 1x when 3g usage is high in order to alleviate speed issues for all.
That could explain your issues.
Click to expand...
Click to collapse
I live in the northwest suburbs outside of downtown Chicago. I work and commute to the city and I experience it the whole ride to and from home. I will be sitting at my desk and randomly go from full 3G to 1x. At home in the suburbs, my signal is terrible in my house already but I do get dropped to 1x as well. Don't really notice any speed changes besides the normal slowdowns from what I am assuming is the congestion.
That sounds like a horrible way to fix their congestion issues! Is this something they just started doing? Like I said in the first post, everything functioned perfect up until a month or two ago. Also, would they apply that to an area as big as Chicago out the suburbs?

ripalsanghani said:
I live in the northwest suburbs outside of downtown Chicago. I work and commute to the city and I experience it the whole ride to and from home. I will be sitting at my desk and randomly go from full 3G to 1x. At home in the suburbs, my signal is terrible in my house already but I do get dropped to 1x as well. Don't really notice any speed changes besides the normal slowdowns from what I am assuming is the congestion.
That sounds like a horrible way to fix their congestion issues! Is this something they just started doing? Like I said in the first post, everything functioned perfect up until a month or two ago.
Click to expand...
Click to collapse
It's not a fix, it's just a way to alleviate some congestion while they work on redoing the towers.
I'm not saying this is what's happening to you but it's likely.
You can try to have the phone reactivate itself. [If I recall correctly that function is in ##yourmsl#]
You can get your MSL here.
You can also try to update your PRL and then Data profile.

Same thing here. I've complained to Sprint several times so now they want me to bring my phone in to be checked so I need to unroot. Ugh

mattykinsx said:
It's not a fix, it's just a way to alleviate some congestion while they work on redoing the towers.
I'm not saying this is what's happening to you but it's likely.
You can try to have the phone reactivate itself. [If I recall correctly that function is in ##yourmsl#]
You can get your MSL here.
You can also try to update your PRL and then Data profile.
Click to expand...
Click to collapse
Thanks for the info. I will give it a shot. I did update my PRL and profile in that order but didn't seem to help. If nothing helps maybe I'll have to get this bad boy replaced or something.

ripalsanghani said:
Thanks for the info. I will give it a shot. I did update my PRL and profile in that order but didn't seem to help. If nothing helps maybe I'll have to get this bad boy replaced or something.
Click to expand...
Click to collapse
Also, and before you ask there is no logical reasoning for this and even the very knowledgeable technician that recommended it hasn't figured out why it would do anything, you can try going to ##3282# and clicking "view" and then clicking on EVDO and then backing out and trying the internet.
They don't know why that would do anything and no it doesn't make any sense...but that's exactly why I refuse to go into anything related to working on computers...for being logical they aren't logical...at all.
By the way, doesn't hurt to keep your radios updated.
Best of luck.

mattykinsx said:
Also, and before you ask there is no logical reasoning for this and even the very knowledgeable technician that recommended it hasn't figured out why it would do anything, you can try going to ##3282# and clicking "view" and then clicking on EVDO and then backing out and trying the internet.
They don't know why that would do anything and no it doesn't make any sense...but that's exactly why I refuse to go into anything related to working on computers...for being logical they aren't logical...at all.
By the way, doesn't hurt to keep your radios updated.
Best of luck.
Click to expand...
Click to collapse
Haha, I am actually in IT so I know exactly what you mean. I will try that out as well. And my radios were updated and I was actually considering rolling back to see if that caused any issues for me.

Let me correct myself, sorry I never run Sense, it's ##786# then you hit menu and hit reset.
You need to have your MSL. Also, please note that this will erase your /data and you will lose all personal information.
Furthermore, be sure to cancel when it tries to do a check for firmware update.
This honestly may be more trouble than it worth though.

Thanks, yeah I found the reset option in another thread. I reset, hit the prl update, cancelled the firmware check and will run this around town for the day see if I get 1x. I'll post back here later today. thanks again for the help!

Well used for most of the day and so far so good. Saw it go down 1x once on train compared to everytime I unlocked the phone. Let's hope this isn't temporary . Ill post again after the weekend to test around the suburbs and state to state during a trip to toronto. Thanks again!
Oh and speed still sucks but that's a sprint issue obviously.
Sent from my PC36100 using XDA App

ripalsanghani said:
Oh and speed still sucks but that's a sprint issue obviously.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
Yeah it is.

ripalsanghani said:
Not sure when and with what ROM this started happening but my signal drops to 1x really frequently. 3G is always going in and out. Any ideas or fixes? Has this been discussed somewhere before? On train ride in to work so haven't searched threads yet! I flashed synergy a few days ago coming from mikg and before that gingerale..and before that cyanogen! It seems like I've had the problem since moving back to sense from cyanogen about a month/month and a half ago.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
I had the same problem a month ago. It's the phone. I tried many different combination of radios and roms but no help. Ended up exchanging it. When you bring in the phone just use the android browser to load a heavy graphic webpage which should take forever in 1x mode.

Great APP for Increasing Signal Strength

Hi All,
I found a great app to BOOST your signal on your rooted NEXUS.
It is called Fresh Networks!
I use my phone in my office and I was getting 3g (I am in a strong 4g area) and 1 or 2 bars on my signal strength.
After I installed this app....I am now getting SOLID 4g signal and between 3 and 4 bars.
Try it and report back!!
There is a free and paid version...I am using the free one....after I try it for a day or so...I will upgrade to the paid version.

what exactly is this app doing to "boost" signal strength?

This app turns airplane mode on and off.
Sent from my Galaxy Nexus using XDA App

thrillerbee said:
what exactly is this app doing to "boost" signal strength?
Click to expand...
Click to collapse
I don't know but it doesn't hurt to give the free one a try.

Syn Ack said:
I don't know but it doesn't hurt to give the free one a try.
Click to expand...
Click to collapse
I can think of several ways it can hurt. (speculation, but does not sound legit.)

deidein said:
I can think of several ways it can hurt. (speculation, but does not sound legit.)
Click to expand...
Click to collapse
Go look at the app. Over 1,100 reviews at 5 stars. I think it can be deemed safe....
Update: Yep I'm getting 2-3 bars in office where I only got 1-2 on my Droid Charge. It works at least a little bit.

yeah just plays with airplane mode, kinda anticlimatic. You can do this on your own with settings or a widget

i had much less luck with the app than the op. i attached a before and after. had 4g before and 1x after, which i waited 5 minutes after running to take the screen shot. 10 minutes later i'm right back to where i was before.
looks like just a network refresh app.
sorry for having to post pics as attachments, i'm a nub

Yeah didn't really do anything more for me than I can do myself toggling airplane mode.

Ok sorry guys....it helped me,,,,,,
getting solid 4g now and 3-4 bars of signal strength.....
oh well...I tried

what's next? an app that boosts your wifi by turning it on and off? Or maybe something that enhances your good looks or boosts your magical powers... someone surely thought of that. -mix

http://www.droid-life.com/2011/12/1...ss-galaxy-nexus-signal-strength-in-the-works/
a fix i guess is in the works

Look for more news. No issue. No fix.
Sent from my Galaxy Nexus using XDA App

over heating!!!

well my phone keeps overheating, along locking up also. what is causing this? did it all day in the truck but i get home and fine im thinking?

Nabisco_12 said:
well my phone keeps overheating, along locking up also. what is causing this? did it all day in the truck but i get home and fine im thinking?
Click to expand...
Click to collapse
Were you traveling through low signal areas? If so that's probably the culprit, your Epic is working extra hard to keep a signal... or maybe the areas you were traveling through were having problems (updating as they call it, lol) with the network...

YES LOL, So what should i do? i use it for work and really cant turn it off i need my updates or messages ASAP, but if im in a low service area should i turn off the data or the network? is there any way to limit it so it can b left on but search so much it overheats?? Thanks!

Nabisco_12 said:
YES LOL, So what should i do? i use it for work and really cant turn it off i need my updates or messages ASAP, but if im in a low service area should i turn off the data or the network? is there any way to limit it so it can b left on but search so much it overheats?? Thanks!
Click to expand...
Click to collapse
You can switch to Verizon and get better service but that is pretty much all...
Sent from my Galaxy Nexus using Tapatalk 2

Nabisco_12 said:
YES LOL, So what should i do? i use it for work and really cant turn it off i need my updates or messages ASAP, but if im in a low service area should i turn off the data or the network? is there any way to limit it so it can b left on but search so much it overheats?? Thanks!
Click to expand...
Click to collapse
You could always try different modems... and if you're running cm7/9/10 or any variant of those you can try out the nexuz 4g modems... check out development to read about your options further... haven't had a dropped call since switching to the crespo4g modems... if it don't help, you can always switch back....

Does your epic sit in the sun while you're riding around?
Sent from my SPH-D700 using xda premium

My phone does this too....when I'm in the movie theatre or in a classroom...Phone gets extremely hot and you can literally see the battery percentage drop....I just put it in airplane mode....sucks that this is the only way to stop this.
Edit: Actually starting using Miui 2.3.9 Gingerbread and it didn't overheat!!!!! Will be using this for awhile!!!!!
Sent from my SPH-D700 using xda premium

4G=> Hot Screen/Fast Battery drop/Other?

I"m on the ROM per my signature. My home is not in a 4G area.
Last night I was in a 4G area, and not sure if what I experienced is expected; or if not if it has to do whith my ROM>
First off, I lost data connection and had to reboot in order to re-establish connection to data, a couple times. I also found that my screen more so than the back (with a think battery) got quite hot. I also noticed the battery dropping quick.
I suspect a possiblity of poor signal where I was at. Did not make any calls. Now that I think about it, the signal bars was not a full 4 bars.
Just wondering what others think.

I also would like to say I'm experiencing the same issue. My battery is much better now only because I turned off LTE. Just a temporary solution. I'm gonna follow this thread to see if anyone can help.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Deggy said:
I also would like to say I'm experiencing the same issue. My battery is much better now only because I turned off LTE. Just a temporary solution. I'm gonna follow this thread to see if anyone can help.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Well, I was up in a different area last night that had 4G, and I had 3 bars. The phone battery did OK, and I didn't have such a hot screen. But it was New Years Eve dance, and I didn't take time to try to communicate over Internet.
But it leaves me feeling that my issue was that the 4G was not good coverage where I was at before, May be a while before I"m in the same area. But I'll keep updating as I experience different 4G connections.

[Q]4G data speed very slow during call

Hi, I have a galaxy S3 with T-mobile. I'm in a place where I have excellent 4G speeds (about 5-6 Mbps :speedtest), I noticed that when I'm on a call the 4G data speed drops to useless speeds. I can barely open a website or download an app. Speedtest shows like 500+ ping and about 500kbps download which is NOT constant (goes up, stops, goes down, etc). Real speed is way less than that. Websites don't open or take forever.. Is this normal? I am using stock rom (but also happened with other roms). I went back to stock thinking that this was a problem with other roms only, but the same thing happen with stock rom. Any ideas/clues/solutions? thanks in advance

Long ping times is normal due to how it operates. But only 5-6mbps? That's pretty slow. Most get averages of 13-18mbps and some get averages around 25.
Try the different modems to see which will be better for your location.
Sent from my SGH-T999 using xda premium

DocHoliday77 said:
Long ping times is normal due to how it operates. But only 5-6mbps? That's pretty slow. Most get averages of 13-18mbps and some get averages around 25.
Try the different modems to see which will be better for your location.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
So, its kind of normal to get slower speed while on a call?

It would seem a logical conclusion. But I've never tested it. But I've never had anything not load or go slow enough for me to notice. If I think about it on my next call ill try to test it out.
Sent from my SGH-T999 using xda premium

DocHoliday77 said:
It would seem a logical conclusion. But I've never tested it. But I've never had anything not load or go slow enough for me to notice. If I think about it on my next call ill try to test it out.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
Ok thanks, The problem here is that I find it way to slow.. lets say I'm downloading a file with no phone call going and I get 600KB/s, during I call I get like 16 to 40KB/s at most... It's like having dial up again... way to slow.. I think something is not right but can't figure out what, since I reverted back to stock wiped everything and also formatted the system after installing stock..

Have you checked your imei or ever lost it?
If not you should really try the different modems.
If this is a recent development you should also call support to see if they have any tower issues in your area.
Sent from my SGH-T999 using xda premium

DocHoliday77 said:
Have you checked your imei or ever lost it?
If not you should really try the different modems.
If this is a recent development you should also call support to see if they have any tower issues in your area.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
IMEI still intact, and have never lost it. I will try with different modems thank you! I'm not sure if this is a new issue since I didn't use my internet as I am using it now while on a call before, also I moved from Puerto Rico to the states for a few months, so there are many variables at the same time. But will try with the modems.
Another question, when I odin Stock (not rooted) ROM does everything (incl. modem, kernel, etc) goes back to stock?

fireboypr said:
IMEI still intact, and have never lost it. I will try with different modems thank you! I'm not sure if this is a new issue since I didn't use my internet as I am using it now while on a call before, also I moved from Puerto Rico to the states for a few months, so there are many variables at the same time. But will try with the modems.
Another question, when I odin Stock (not rooted) ROM does everything (incl. modem, kernel, etc) goes back to stock?
Click to expand...
Click to collapse
Good luck.with the modems! It takes patience, but is worth it in the end!
Yes, Odin flashing the official firmware will set everything back on stock.
Sent from my SGH-T999 using xda premium

Hello, spent the whole day testing out every single JB modem from your post and none of them solved my problem... did find better speeds with some on them while not on a call. But as soon as I'm on a call the speed drops to about 47kbps, looks like a cap or something because I get constant speed of 47-49 kbps. Sometimes it goes over the cap and works normally but for a few seconds then the speed drops and its not constant anymore until it reaches around 47kbps... This is so frustrating... is there anything else that I can try out??
Sent from my SGH-T999 using xda app-developers app

fireboypr said:
Hello, spent the whole day testing out every single JB modem from your post and none of them solved my problem... did find better speeds with some on them while not on a call. But as soon as I'm on a call the speed drops to about 47kbps, looks like a cap or something because I get constant speed of 47-49 kbps. Sometimes it goes over the cap and works normally but for a few seconds then the speed drops and its not constant anymore until it reaches around 47kbps... This is so frustrating... is there anything else that I can try out??
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Flash the LJC firmware package. Third firmware link in my signature. This is for SGH-T999 (d2tmo) only. Unsure about the download cap while talking on the phone. Aren't the two separate? Cell and data, right? Shouldn't be a cap then, but I've never been talking on the phone while downloading a file. I will try it if I think about it tomorrow.
5-6Mbps is not bad. It just depends so much on where you are. My fastest test ever was the other day @ 14.4Mbps. It's not a big city, but it's sizable. It's usually under 10Mbps in that location. And normally less than that everywhere else in the area. There are some areas that put me on Edge. Might as well just turn on airplane mode. Because T-Mobile's Edge... is actually worse than no data connection at all.

Thank you, will try that tomorrow. 5-6mbps is fine for me but that is without call. While on call is like 0.37mbps constant or really bad ups and downs.. is like edge (worst than not having connection at all).. anyways will try and report back. Thanks again
Sent from my SGH-T999 using xda app-developers app

Sorry I couldn't remember this before, but I have a theory that could explain what's going on there.
Voice calls and 2g (GPRS) both share the same frequency spectrum. I remember doing some 3g research in the past and one of the benefits to the introduction of 3g was more overall bandwidth for all, even those left on 2g. At the time, 2g data service was greatly impacted by how much voice traffic was going across the network at any given time.
During peak voice call times, there was less bandwidth for mobile data users because the tech was designed to give priority to the calls. This meant even slower than usual 2g data speeds.
But as people moved to 3g, there were less using 2g for data lessening the impact caused by voice and sms communications.
So what I'm getting at is when you are on a call, that call is going across 2g frequencies, meaning you are connected to 2g. (Though 4g data should still be available to you regardless. But it may have something to do with what you're experiencing.)
Keep in mind that this was 3 or 4 years ago. I'd think that it'd work differently now. But it is possible that they never changed the fact that voice shares its spectrum with 2g. I could be seriously off with all of this, but I still thought I'd mention it since it would make a little sense with the speeds you're seeing.
The thing is, the S3.is capable of using DC-HSPA (dual carrier) which means it can use 2 different signals at once (one from T-Mobile, one from a partner carrier) for greater speeds (HSPA+42). So I don't understand why it won't use this same tech to give you better data speeds while on a call.
I know I've used mobile data while on the phone before, and never felt like the qos was lacking. But I never speed tested it either.
The more I think about it though, the more I'm thinking it's either firmware (see aerowinders post above), hardware, or you're connecting to a tower that either has problems or hasn't been upgraded in a long time. I don't believe that what you're seeing is normal operation.
Of course every bit of this is speculation at this point. Hope no one thinks I wasted their time with it. I thought it may spark some ideas though!
Sent from my SGH-T999 using xda premium

I was looking up some information and ran across this. Figured Id link you to it since it is directly related to your problem.
You can pretty much ignore my above post! LOL
T-Mobile Support Document - Using Voice and Data Services at the Same Time
Basically, it looks like you should call Tmobile.

Tried with the file you provided and still the same results.. I guess I will have to call tmobile to troubleshoot this problem :/ thanks tho
Sent from my SGH-T999 using xda app-developers app

Good luck! Let us know your results if you don't mind.
Sent from my SGH-T999 using xda premium

Hello, I still have not called customer service, but I'm going to be back where I din't have any problems next week. I'm going to test it out there. If I don't have problems there, then it's this area the one with problems. Anyways I will let you all know my findings.. Thank you all for the support!
Edit: I just confirmed that it works perfectly fine where it used to worked fine. It must be the new area where I moved recently that has issues. Thank you all for your time and help.