How do I re-enable LTE - T-Mobile Samsung Galaxy S II SGH-T989

Hey all! Ok, so my gf has had this S2 from Koodo (Telus) since January. Out of the box it came with LTE/4G enabled and working fine. However, I rarely leave things alone and right away I installed TWRP, AOKP and I think, Tiberius Kernel. Have been using variations of each since. However, ever since I did that, the 4G hasn't worked. In the phone settings it says LTE/GSM Auto. However if I change it to anything else, like LTE ONLY, for example, it just stays at LTE/GSM auto. Nothing happens. So I am wondering how to get her 4G to work again since I know it is fully capable of it and my area does have working LTE.

santeana said:
Hey all! Ok, so my gf has had this S2 from Koodo (Telus) since January. Out of the box it came with LTE/4G enabled and working fine. However, I rarely leave things alone and right away I installed TWRP, AOKP and I think, Tiberius Kernel. Have been using variations of each since. However, ever since I did that, the 4G hasn't worked. In the phone settings it says LTE/GSM Auto. However if I change it to anything else, like LTE ONLY, for example, it just stays at LTE/GSM auto. Nothing happens. So I am wondering how to get her 4G to work again since I know it is fully capable of it and my area does have working LTE.
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The t989d doesn't have lte. Doesn't have the hardware for it.
Sent from my cell phone telephone

Ok but my mother has the same phone (got them each one) but I haven't touched that one and it says 4G by the signal bars... Why is that?
Sent from my Nexus 4 using xda premium

santeana said:
Ok but my mother has the same phone (got them each one) but I haven't touched that one and it says 4G by the signal bars... Why is that?
Sent from my Nexus 4 using xda premium
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4g is the same as H+ on custom roms. And now some say DC. Not sure why they left behind the 4g symbol, but its all the same thing. So if you see H+, DC or 4g, its all actually 4g.
You should be on GSM/wcdma preferred in mobile settings.
Sent from my cell phone telephone

kj2112 said:
4g is the same as H+ on custom roms. And now some say DC. Not sure why they left behind the 4g symbol, but its all the same thing. So if you see H+, DC or 4g, its all actually 4g.
Sent from my cell phone telephone
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Oh ok! Thanks!
Sent from my Nexus 4 using xda premium

I have sorta the same problem, except I have a tmobile s2 t989. I flashed cm 10.1 nightlies and the newest radio. Phone works good except my phone no longer shows the 4G symbol above the signal bars. It instead says 3G. Before rooting it said 4G above the signal bars. Every once in a while it says DC. Any advice?

iMacMane said:
I have sorta the same problem, except I have a tmobile s2 t989. I flashed cm 10.1 nightlies and the newest radio. Phone works good except my phone no longer shows the 4G symbol above the signal bars. It instead says 3G. Before rooting it said 4G above the signal bars. Every once in a while it says DC. Any advice?
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Explained the symbols in posts above. And if you are getting a lot of 3g....that's reception. Your losing your 4g connection and its picking up 3g. Usually for this to happen you'd only be getting about 1 bar on your signal.
Sent from my cell phone telephone

kj2112 said:
Explained the symbols in posts above. And if you are getting a lot of 3g....that's reception. Your losing your 4g connection and its picking up 3g. Usually for this to happen you'd only be getting about 1 bar on your signal.
Sent from my cell phone telephone
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I appreciate the info. I live in Orlando and I'm pretty sure we have tmobiles 4g or hspa+. I was just wondering why I'm only getting 3G date speeds instead of 4G speeds. The internet still seems relatively fast but wanted to make sure the phone wasn't slowing down the speeds to 3G speeds.

iMacMane said:
I have sorta the same problem, except I have a tmobile s2 t989. I flashed cm 10.1 nightlies and the newest radio. Phone works good except my phone no longer shows the 4G symbol above the signal bars. It instead says 3G. Before rooting it said 4G above the signal bars. Every once in a while it says DC. Any advice?
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Aosp ROMs run on 3g (umts) until data is called. Once data is called it will pull up h+(hspa+)or dc(dc-hspa) depending on your area. Its a battery saving feature and the stock Samsung ROMs show 4g all the time. Unless on edge or GPRS. I think even touchwiz ROMs went to umts while idle.
sent from my t989 hercules

Related

All roms make my phone switch from 4g to 3g on Telus

I have the T989D from Telus in canada, and every single rom ive tried(cause theyre just modified t-mobiles)..says 3g instead of 4g. I was wondering if there was a way to fix this?
Thanks!
Rekzer said:
I have the T989D from Telus in canada, and every single rom ive tried(cause theyre just modified t-mobiles)..says 3g instead of 4g. I was wondering if there was a way to fix this?
Thanks!
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Did you try running a speed test? I am definitely getting 4G speeds even though it says 3G. I'm not sure why this happens.
it's just a bug in the icons
the speed is not affected
i wont be able to test that util later this week, as where i am right now gets like 5 megs tops no matter what
Rekzer said:
i wont be able to test that util later this week, as where i am right now gets like 5 megs tops no matter what
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Lol that is definitely 4G speed still. 3G speed.. sucks
You know that HSPA+ is actually 3G right? To the phone it connects on the same frequencies and uses the same method, just uses a wider connection channel.
That's why a custom ROM identifies as '3G', Telus wrote some custom features into the OS that makes it show up as 4G.
Basically, they replaced the 3G icon with a 4G icon. The 3G icon never shows up on stock Telus.

[Q] Signal strength on Tmobile USA

I have the Galaxy nexus unlocked and am using it on T-mobile USA, it seems like i am getting 4G (HSPA) coverage less than when I was using my G2X. I was wondering if anyone else was feeling this way? I was also wondering if anyone has gone into the hidden menu (*#*#4636#*#*) under Phone info and experimented with changing the Preferred network type at all? I am currently set to GSM/CDMA auto (PRL) i tried changing it to WCDMA prefered, but it wont stick. I know we have done that in the past for other T-mobile 4G phones to tell the phone to always connect to 4G unless no 4G signal is present.
i too feel like its bad signal on the nexus, i changed to wcdma only though
Did yours stick? I tried to change mine, but if I go back into the hidden menu after I change it, its back to GSM/CDMA auto. My changes dont save......
i'm not noticing any difference from my nexus one really. also not noticing much better download speeds either.
mine sticks for sure
Did you do anything special? I go into the drop down menu select WCDMA preffered, then hit the back button to exit the hidden menu right? There is no save option or anything that Im missing right?
Just tried it again. I can pick WCDMA only and it will stick, but WCDMA prefered wont stick. Interesting....
are you guys getting better signal with WCDMA only or about the same?
i get really crappy 3G reception and sometimes it's so bad that i have to force my phone to stay on edge just so i can make phonecalls.
My phone constantly displays the H, but my speeds are down right despicable. Its near dial up status
Sent from my Galaxy Nexus using xda premium
I've had no problems with the GN on T-Mobile's network without changing any of the internal settings. In both New York and Arizona I've been getting 3 - 5 Mbps consistently, with peaks of up to 7 Mbps.
One thing I've noticed is that the radio switches to 3G when I'm not using data, but when I load a webpage or ask for data it switches to HSPA+. This is probably to save the battery life, so I'm not complaining.
This seems a relevant place. I just bought my GSM Nexus yesterday on Amazon and got it today. T-Mobile SIM card plugged in, I get terrible reception. I have no signal at all where I'm sitting, whereas my Vibrant and my G2 both had at worst 3G connection.
I'm not a clever man, but I know something is up. I haven't rooted or done anything to my phone. Is there something that I must do to get the phone to work properly?
To reiterate: I have done absolutely nothing but put in the SIM card.
Try a different baseband (search the GN forums for details)…
With the latest baseband (XXLA2) I seem to have better signal than I did on my nexus-s, and the nexus-s did pretty good.
netarchy said:
With the latest baseband (XXLA2) I seem to have better signal than I did on my nexus-s, and the nexus-s did pretty good.
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Is there any update to which is the best modem to use for t mobile? Seems like one of my friends is having trouble getting signals in home but he is getting signals outside.
☞ sent from GS3 or Nexus

Not seeing 4G on CM10

Hey guys, I recently upgraded to Mobilicity's 4G plan, but I want to know if is it just me, or is CM10 having issues with data connection? I'm not getting 4G speeds a lot, and it doesn't even show 4G by the bars. It just shows H+ and a lot of the times, it bounces around from h to 3G to H+ and back, then it'll go to H+ and start working. So, My question is, is this normal, to not see 4G by the bars, even though i'm on the 4G plan for Mobilicity. If that first one is a yes, then is it also normal that it bounces around from the H, 3G, to H+ for a bit then get a working connection on H+. And thirdly, is the wildly fluctuating speeds normal? Some times slow speeds and some times fast? And I don't think i Lost my IMEI, I see the number on my settings. And a Bonus question, I hear yesterday we were supposed to get the JB update, any word on that? Going to need to go back to stock and unroot the phone if so.
CM10s radio firmware just displays the signal differently. 3g-4g = 3g-H+
Sent from my SGH-T999 using Tapatalk 2
H+ is what the touchwiz ROM would call 4g...it also calls 3g 4g so cm10 is showing what you're really getting service wise. There's nothing different happening on your phone
Sent from my SGH-T999 using xda premium
papi5120 said:
H+ is what the touchwiz ROM would call 4g...it also calls 3g 4g so cm10 is showing what you're really getting service wise. There's nothing different happening on your phone
Sent from my SGH-T999 using xda premium
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Ohh okay. But is anyone else having random data speed drops? sometimes it's amazingly fast, where as others it's really slow.
Its not that its displaying it wrong. I believe it is actually switching between 3g and 4g (hspda+) data. It is probably a data tweak used to conserve battery because things like text messages don't need full hspda data. I've noticed that when im texting it uses 3g but when web browsing or YouTube, it switches to H+
Sent from my SGH-T999 using Tapatalk 2

4g and no network

4g just started popping up on my phone, but every time it does, I have no network access. Is this a phone issue or Sprint just testing out new towers?
Lte turned off for now. Problem solved.
babyschmoof said:
4g just started popping up on my phone, but every time it does, I have no network access. Is this a phone issue or Sprint just testing out new towers?
Lte turned off for now. Problem solved.
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It happens to me once in awhile. I will connect to the LTE network but no data. After a min or two it switches back to 3G. The LTE networks are up around me, but I don't think the upgrade is 100% complete. I'm thinking its a Sprint issue.
Sent from my Freeza MD4 Stock Rooted Galaxy S3
TheSocalGuy79 said:
It happens to me once in awhile. I will connect to the LTE network but no data. After a min or two it switches back to 3G. The LTE networks are up around me, but I don't think the upgrade is 100% complete. I'm thinking its a Sprint issue.
Sent from my Freeza MD4 Stock Rooted Galaxy S3
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It happens to me right outside my house... I get 1 bar of LTE service, but no data. I know they have been updated the network around me and chalk it up to that. I just toggle off LTE or hop on my Wifi.
babyschmoof said:
4g just started popping up on my phone, but every time it does, I have no network access. Is this a phone issue or Sprint just testing out new towers?
Lte turned off for now. Problem solved.
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From the sounds of it, Sprint is adding 4g to your area. They generally start out in the rural areas and make their way inward. You could be on the boundary and we'll continue to get intermittent signals until the get enough work done to get s stronger signal. Hang in there, it gets better.
Sent from my SPH-L710 using Tapatalk 2

LTE? Does The Icon Change?

Silly question, but I'm curious. In my area, according to what I have seen on T-Mobile's website, there is some LTE coverage in the greater downtown area. Although I have "4G" just about everywhere, I have also been through the downtown areas and never seen an LTE icon or anything like that on my phone. Speed test results have also not shown anything significant either. Can someone with known LTE chime in?
02CWRX said:
Silly question, but I'm curious. In my area, according to what I have seen on T-Mobile's website, there is some LTE coverage in the greater downtown area. Although I have "4G" just about everywhere, I have also been through the downtown areas and never seen an LTE icon or anything like that on my phone. Speed test results have also not shown anything significant either. Can someone with known LTE chime in?
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Yep, here's a screenshot:
http://i.imgur.com/OubhiYj.jpg
It will say LTE along with the 4G icon
Sent from my DROID RAZR using xda premium
ryceone said:
Yep, here's a screenshot:
http://i.imgur.com/OubhiYj.jpg
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Perfect! I hit the thanks button for you.
Wow 33mb download
Sent from my SGH-M919 using xda premium
awesomedeals88 said:
Wow 33mb download
Sent from my SGH-M919 using xda premium
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Yeah crazy right?
A similar question (I have neither an S4 nor T-Mobile service at this time, but will in the near future).
When you switch from HSPA+ "4G" to LTE 4G... is there an interruption in service for a few seconds as you change networks? I have a Nexus S 4G on Sprint right now, and where I live if I drive 10 miles I will go back and forth between 3G and 4G several times. And every time 4G becomes either available or unavailable, I will have a several second interruption in service while it switches networks. It's so annoying that I sometimes completely disable 4G because I'd rather have slow steady 3G than all these switches back and forth with gaps. Does that make sense?
The111 said:
A similar question (I have neither an S4 nor T-Mobile service at this time, but will in the near future).
When you switch from HSPA+ "4G" to LTE 4G... is there an interruption in service for a few seconds as you change networks? I have a Nexus S 4G on Sprint right now, and where I live if I drive 10 miles I will go back and forth between 3G and 4G several times. And every time 4G becomes either available or unavailable, I will have a several second interruption in service while it switches networks. It's so annoying that I sometimes completely disable 4G because I'd rather have slow steady 3G than all these switches back and forth with gaps. Does that make sense?
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Its quite normal it just means your radio is switching signals and theres a small down time for a second while it searches for the change in frequency.
Your probably seeing the O with a line thru it for a split second then signal bars arise
Sent from my SGH-M919 using xda premium
lojak29 said:
Its quite normal it just means your radio is switching signals and theres a small down time for a second while it searches for the change in frequency.
Your probably seeing the O with a line thru it for a split second then signal bars arise
Sent from my SGH-M919 using xda premium
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Yes, I do understand the reason behind it and that it's normal for my phone.
But I have never used an HSPA+ or LTE network or phone and I'm asking if the same thing happens with the S4 when switching between HSPA+ and LTE. I assume it does, but would appreciate confirmation from someone with the phone, on Tmobile, with both networks available in their area. Thanks.

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