Data coverage change after root. - T-Mobile Samsung Galaxy S 4

I rooted my device tonight after beating my head over the forums on all the horror stories people are posting and having a good standing history here at XDA with all the devices I've rooted in the past without so much as a blank screen.
Anyways, I ran root and got everything set up and noticed my connection took a nasty dive. I had incredible 4G signal before root and now it bounces back and forth between edge and 4G.
I can't see why root would effect signal but theres gotta be a way to correct it.
Sent from my SGH-M919 using xda premium

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Problem with data?

Today i went to hilton head from savannah. In savannah i have fine 4g service. once i passed over bored of ga and sc i lost all service. i did not go into 3g nor edge. I also have a vibrant that i carry which kept a 3g service for most of the time. It went into edge for a few minutes but it krept back into 3g. My SGS II never came back into service until i was 5 minutes away from my house. I reset the phone a couple times throughout the day which did not help. has anyone experienced a loss in data with another phone that is on same service have data. This was unexpected and frankly pissed me off. NO GPS, NO INTERNET. all i could do was text. I even had gps on my vibrant (miui latest le) which if you came from vibrant you know its not the greatest gps.
My real question is....Do you think its a defect and should i try to get another one or something im going to have to deal with on the SGS II . I am always going back and forth between the two places.
Next time you take the drive try going to Settings -> Wireless & Network -> Mobile Networks and changing your network mode to GSM only.
You may be onto something because I experience the same thing when at the office. My 4G drops and it won't switch to edge, I just have no service.
If the auto mode isn't working for anyone that really is lame.
I have called CS on this and they didn't seem concerned and just told me to do what I wrote in the first paragraph.
Sent from my SGH-T989 using XDA App
alright i will definitely try that. i appreciate your input. And i agree, very lame.
I'll try to remember to report back how my day at the office goes with GSM only tomorrow.
I'm just glad to see someone else having the problem, no offense or anything.
Sent from my SGH-T989 using XDA App
well i would rather know if its a defect or just unable to switch services automatically before my grace period is up. So please do report back...
It definitely seems like there is an issue with switching between 4g & E. I can't fully confirm but I've been switching them manually today and it's working. If I leave it on auto it never switches to edge even when 4g is at zero bars. Weird. I don't know if this is normal or not cause this is my first real 4g device.
Sent from my SGH-T989 using XDA App
Yeah this is my first time on 4g. I might just go to tmo store and talk to them about it.
Sent from my SGH-T989 using XDA App
They dont know anything about this stuff
How do you switch manually? I have problems inside of buildings, not that I expect it to have a 4g inside, but edge would still be helpful for work email notifications.
Mileman3, look at the second post in this thread for instructions.
On the gs2 GSM is 3g/E(?) And WCDMA is 4g.
Sent from my SGH-T989 using XDA App

New to Samsung Galaxy

Hey guys,
So i'm new to owning Samsung galaxy phones. I do really like my phone alot, the only downfall so far with is my signal us HORRIBLE! I had the evo and evo 3d and my signal wasnt to bad. The I bought the iPhone and had good signal but since i'm a sprint customer I had extremely slow internet. Found out how to make my iPhone run on Verizon signal and was fast. Well I got bored with it and got this. (sorry for long story, at work and bored). So anyways is there a way to help my signal. All my phones besides this one had full signal at my house this phone only gets about 4 bars and it seems like my wifi reciever is weak to, hardly picks up my wifi at home. Id really appreciate the help,
Thanks
Sent from my SPH-D710 using XDA
Hmmm....that's interesting. Other than slow 3G and spotty 4G service in my area, I've never had signal problems and definitely no problems picking up WIFI at home. In fact, I normally connect to my WIFI before I even pull into the driveway at home.
In regards to phone signal, have you tried updating your PRL in settings?
I just got it on Friday and the prl updated its self, haven't tried recently. Is there ways to reprogram the radio. I've had both my evos rooted, I understood flashing roms, but never understood when it said something about radios.
Sent from my SPH-D710 using XDA
wildcat721 said:
I just got it on Friday and the prl updated its self, haven't tried recently. Is there ways to reprogram the radio. I've had both my evos rooted, I understood flashing roms, but never understood when it said something about radios.
Sent from my SPH-D710 using XDA
Click to expand...
Click to collapse
try to flash a newer modem with ODIN! but my best is with FE22 but that will depends on what area you are in

Am i the only one with 4G problems?

Looked in General and Q&A and can't find anyone complaining about 4G reception. This stupid phone doesn't hold 4G indoors ANYWHERE I go. My Galaxy S2 never had problems like this. This phone is always switching to EDGE. ALWAYS!!! Really causing me to regret my purchase. Also, my "4G" speed test has never gone faster than 3.5-4Mbps down, where my GS2 averaged 9-15Mbps. Only flaw I have had with this phone. I read Verizon users are having the same issues with their GS3. This damn phone annoys the hell outta me and hope the Galaxy Note doesn't have the same radio as this because I can't wait to replace this phone. I love it and how fluid the ui is, but I pay for the 10GB data plan, but this idiotic phone doesn't allow me to use it. And I've had it replaced twice. Gonna replace the SIM later today and see if that helps. So, am I the only one? And I live in an excellent 4G area according to T-Mobile.
This may not help, but could be worth a try.
Open the dialer and enter *#*#4636#*#*
Once u hit the last * it should open up a menu. Select Device Information, scroll down a little and there should be a box to click on. Choose WCDMA Only and see if you can get onto 4G now. If you can get 4G, you can go back and choose WCDMA preffered and see if it acts ok on this setting.
Worth a try at least. Good luck!
And have you called tmobile to see if they are having problems with any towers in your area?
Sent from my SGH-T999 using xda app-developers app
You don't have to insult the phone, just state your problem. Sheesh
Sent from my SGH-T999 using xda premium
IRIE4IPIER said:
Looked in General and Q&A and can't find anyone complaining about 4G reception. This stupid phone doesn't hold 4G indoors ANYWHERE I go. My Galaxy S2 never had problems like this. This phone is always switching to EDGE. ALWAYS!!! Really causing me to regret my purchase. Also, my "4G" speed test has never gone faster than 3.5-4Mbps down, where my GS2 averaged 9-15Mbps. Only flaw I have had with this phone. I read Verizon users are having the same issues with their GS3. This damn phone annoys the hell outta me and hope the Galaxy Note doesn't have the same radio as this because I can't wait to replace this phone. I love it and how fluid the ui is, but I pay for the 10GB data plan, but this idiotic phone doesn't allow me to use it. And I've had it replaced twice. Gonna replace the SIM later today and see if that helps. So, am I the only one? And I live in an excellent 4G area according to T-Mobile.
Click to expand...
Click to collapse
I'm having some similar issues. I can get 4g indoors, but seems to switch around without even moving the phone. I'm wondering if it's a "feature" of the SGS3. Uses less battery to hold EDGE/3g and then when it detects data transfer, switches to 4g... I dunno.
That being said, you can try installing the new OTA which has a new radio. Or if your rooted etc, flash the radio zip Wild put up. I've noticed some improvements with signal strength, but it still seems to swap based on what I'm doing.
Anybody more knowledgeable have any info on this "smart data management"?
The phone will only stay at 4G during data transfers, while idle it'll drop back to 3G. I don't think it should be dropping to edge/2G though.
Did you try the method I mentioned in my other post?
Sent from my SGH-T999 using xda app-developers app
DocHoliday77 said:
The phone will only stay at 4G during data transfers, while idle it'll drop back to 3G. I don't think it should be dropping to edge/2G though.
Did you try the method I mentioned in my other post?
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
Yes I did and thank you for bringing that to attention , I don't know how I let that slip my mind, I used that setting to fix my last two Samsung phones, Nexus S and GS2. They both would do this just not as bad as the GS3, now the phone holds its 4G/3G much better with WCDMA only turned on. Now I have zero gripes about this phone.
Anyone know what the difference is between HSPA:10 and HSPA+15? Is the latter the HSPA42 T-Mobile advertises?
hold the phone upside down. works wonders i swear lol. especially when you're trying to download something.

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
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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

Anyone running pure 4.3 stock

Data and call quality on these custom roms have been fine up until a few months ago. Either It's a fluke and just so happen that I been having issues around the time 4.3 dropped or the rom has issuses. I tried several 4.3 roms and still issuses with data speeds and drop calls. I called sprint and get the towers been updated and there's no outages in your area bull crap or lies of sending a box to boost signal free of charge ****. I never ask on this forum alot I rather figure it out myself but im completely lost. The only thing I haven't did yet was go back to 4.1 stock. My backup to that is gone Thanks to a dead 64 gig sd card and I don't wanna waste my time if the results are gonna be the same. Sprint was great for a year but things are bad took 3 hours to download 3 mb app smdh. I don't wanna leave sprint but I might not have a choice. It's hard to say it's my phone because my wife evo 4g lte dont even see 4g unless she jump on my internet tether or make a call in the bedroom to avoid a drop call. I literally get great coverage everywhere in town but at home. At my mom house I get download speeds of 15mbps all day long and at home download speeds of 0.63mbps and my phone say 4g lte on both really sprint. If you have any suggestions please steer me in the right direction before I blow 450 dollars leaving to another carrier. I would just be happy with no drop calls skip the internet at this point.
If your running stock with that knox mess let me know if things are different with calls or data hell I'll even give cm a try if it works.
Sent from my SPH-L900 using XDA Premium 4 mobile app
Well I think your answer lies in your post. Everything works fine as long as your not at your house you stated. So it is a signal issue on sprints part not software or your phone.
FYI T-Mobile is offering to pay your etf's if you are looking to go that route.
Sent from my SPH-L900 using XDA Premium 4 mobile app
Yeah I was checking that out and about to make that switch today just left the tmobile store just waiting on wife to pick a phone . Sprint been ok but I need better coverage in the midwest these storms and drop calls is not safe . Thanks for the suggestion Im gonna miss this phone. Off to the lg g2.
Sent from my SPH-L900 using XDA Premium 4 mobile app

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