Develop Bugs

HSPDA T-Mobile

Just A quick question about my Data for HSDPA for i9250.
According to GSMARENA
http://www.gsmarena.com/samsung_galaxy_nexus_i9250-4219.php
The internet: Speed HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
However, I'm only getting HSDPA 7.2Mbits (HSDPA:8)
Anyone know why?
Edit: When I'm not doing anything, I'm just on the HSDPA 7.2(HSDPA:8), however, when I'm running a speedtest, it runs on HSPDA+(HSPA+15). Anyone know why it bounces up when I do something intensive?

My guess would be to use less battery and prevent tower congestion. I'm on AT&T and my phone jump from HSPA+ to 3G when I'm not using data either.
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3g/4g question

Hi every body
i seem when my note display 3g the internet dosnt work i need to wait for couple of seconds to display h or h+ and then works. Is that normal? Why i cant use the 3g regular network?
Sent from my SGH-I317 using hixda app-developers app

Yes thats normal. Its to preserve bettery the signal will regilary drop down into 3g when idle
Sent from my GT-N7105 using Tapatalk 2

Bestplayer55 said:
Hi every body
i seem when my note display 3g the internet dosnt work i need to wait for couple of seconds to display h or h+ and then works. Is that normal? Why i cant use the 3g regular network?
Sent from my SGH-I317 using hixda app-developers app
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I'm on the same boat homie. Can't figure it out. I guess it's just another amazing T-Mobile limitation.

Tmobiles 3g and 4g network are the same the 4g is actually just 3g with better antenna technology and I think a power boost. The 3g network is called hspa and 4g is hspa+. That is why att had 3g 3.5g and 4g att considered the hspa+ 3.5g because they launched their lte network as 4g. So technically when tmo launches lte it will be tmos 5g. They changed the definition of the whole thing a while ago. G stands for generation. So that is why tmobile is allowed to call it 4g because it is their 4 generation of high speed internet. There is no actually standard. like edge being 2g hspa being 3g lte 4g the way it should be.
For the roms that use the h, h+, 3g format usually 3g actually EDGE or 2g. H is 3g and h+ is 4g So the net is probally not broken it is just ridiculously slow. I hope I explained that right. That is what it seems like to me from GOOGLEING it.

mojorisin7178 said:
Tmobiles 3g and 4g network are the same the 4g is actually just 3g with better antenna technology and I think a power boost. The 3g network is called hspa and 4g is hspa+. That is why att had 3g 3.5g and 4g att considered the hspa+ 3.5g because they launched their lte network as 4g. So technically when tmo launches lte it will be tmos 5g. They changed the definition of the whole thing a while ago. G stands for generation. So that is why tmobile is allowed to call it 4g because it is their 4 generation of high speed internet. There is no actually standard. like edge being 2g hspa being 3g lte 4g the way it should be.
For the roms that use the h, h+, 3g format usually 3g actually EDGE or 2g. H is 3g and h+ is 4g So the net is probally not broken it is just ridiculously slow. I hope I explained that right. That is what it seems like to me from GOOGLEING it.
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Hey thanks for that info. I tested out all networks again...
4G = Fast Data.
3G = No Data AT ALL.
Edge = Slow Data.
If T-Mobile's 4G and 3G networks are the same thing, why don't I get data when the phone says it's connected to a 3G tower? I had 3G service with my previous phone and it had decent data speed. I could stream music and browse the web easily. Now... 3G just doesn't work at all.

acideater said:
Hey thanks for that info. I tested out all networks again...
4G = Fast Data.
3G = No Data AT ALL.
Edge = Slow Data.
If T-Mobile's 4G and 3G networks are the same thing, why don't I get data when the phone says it's connected to a 3G tower? I had 3G service with my previous phone and it had decent data speed. I could stream music and browse the web easily. Now... 3G just doesn't work at all.
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Thanks fo that. Thats what im talking about. I have my other phone (nexus s) and works with 3g tower. Note 2 dosent works. Im going to call tmobile customer service to complain lol
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I called tmobile today and the technical support told me they are going refering this issue to the engeniere to look forward what can be happening with this problem, bcse is not normal. We supposed to use tge 3g network too. Sorry my english is bad.
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Bestplayer55 said:
I called tmobile today and the technical support told me they are going refering this issue to the engeniere to look forward what can be happening with this problem, bcse is not normal. We supposed to use tge 3g network too. Sorry my english is bad.
Sent from my SGH-I317 using xda app-developers app
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Cool man keep us updated!!

H+ or 3G what is the difference?

every time i browse the net on my Note 2 I'm getting "H+" on the status bar in my area while at the same time whenever i call someone i get 3G at the same place, so what is the difference between them? which is better? sorry if it is a noob quastion

H+ is for HSDPA+, which delivers much higher speeds than normal 3G. Technically it is an upgraded 3G network. so if you have H+ then your network is faster than if you get only 3G. and H+ is used only for data download. so you will not see it in normal voice calls.
Based on your network, Note II can handle H+ speeds up to 42Mbps. 3G is only 384kbps.

tmrbaset said:
H+ is for HSDPA+, which delivers much higher speeds than normal 3G. Technically it is an upgraded 3G network. so if you have H+ then your network is faster than if you get only 3G. and H+ is used only for data download. so you will not see it in normal voice calls.
Based on your network, Note II can handle H+ speeds up to 42Mbps. 3G is only 384kbps.
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thanks alot man for the explanation i thought it is something weaker than 3g, i appreciate your answer :good:

Here for the diff speeds
http://forum.xda-developers.com/showthread.php?t=639115
Sent from my GT-N7100 using xda premium

Capable of 42Mbps!? I can't imagine anyone ever gets anywhere near that. I only get 35Mbps on my home computer with cable internet.
With H+ in my area, I generally get somewhere around 3Mbps maybe a little higher.
What is the max speed of LTE supposed to be?
Now that I know my phone is capable of 42Mbps (which is faster then my home connection), I really have no problem with not having an LTE phone. Especially since the max speed is probably as probable as seeing a unicorn.

Not to put a damper on it, but H+ doesnt mean DCHSPA as my N7100 shows that symbol and its not DCHSPA capable.

kebabs said:
Not to put a damper on it, but H+ doesnt mean DCHSPA as my N7100 shows that symbol and its not DCHSPA capable.
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That's because H+ means HSPA+. Unless that's what DCHSPA is, but I've never heard it called that before. Even then, are you sure about that? HSPA+ is listed in the specs for this phone.

HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL
H+ is faster than 3g without a doubt
DCHSDPA is known as dual channel ie three uk are dishing it out but us n7100 owners nothing to get excited over its not supported..
Mainly only lte models have dchsdpa only a couple of non lte devices have it
Sent from my GT-N7100 using Tapatalk 2

E_Goldstein said:
HSDPA, 42 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL
H+ is faster than 3g without a doubt
DCHSDPA is known as dual channel ie three uk are dishing it out but us n7100 owners nothing to get excited over its not supported..
Mainly only lte models have dchsdpa only a couple of non lte devices have it
Sent from my GT-N7100 using Tapatalk 2
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Well, that sort of clears it up. (Although I don't fully get it, I sorta do) Not like it really matters though. No one is going to get anywhere close to what those technologies are capable of anyways. If they ever do, we will probably all be on our next device anyways(probably more like a few devices down the road).

[Q] HSPA+ speed goes down after LTE launch

Dont know If anyone noticed this. I live in wash dc and 3 days ago LTE went live here. The thing is this though: I have a galaxy s3 with tmobile which supports hspa+ 42MB but not LTE and before the greatest LTE lauch here I was having like 21MB/s down and 3MB/s up on HSPA+ network. However after the LTE lauch my speeds on HSPA+ network went way down to constant 8MB/s down and 2.2MB/s up no matter what time u do the test no matter what server u use. I just hope this is not just another Tmobile trick to force me to update to an LTE ready device to be able to access higher speeds after I just got the not LTE ready galaxy s3. Can anyone in an LTE area confirm this?

My speeds are a little slower
And I'm getting more 3g and less HSPA
Sent from my SGH-T999 using xda app-developers app

It all depends on spectrum licenses in your area. Where T-Mobile has to refarm their spectrum for LTE it will cut HSPA down to 21mbps.

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Well now that sucks. So my speeds go down when they turn on LTE? How lovely...
Sent from my SGH-T999 using xda app-developers app

I think the problem is stemming from excess bandwidth consumption by those markets that have LTE and people with Note IIs ready to use it. The backhaul needs to be increased. Just like what happened when they launched UMTS... Give it some time. Or go get an LTE phone.

I live in KC and have not experienced any drop. My market and towers were confirmed by tmo to be running both.

The issue really is how good your PCS (1900) coverage is... The refarming will slide the AWS HSPA to 1900 to make room for LTE. This will cause problems in markets that don't have full PCS licenses or decent PCS coverage. And obviously indoor speeds will be slower when on PCS due to building penetration.

I also remember reading that part of the reason T-Mobile's HSPA+ was so fast was the fact that it uses one frequency for upload and the other for download, whereas PCS just uses one frequency for both. So I guess we will be as average as the rest now?

No data rate change here
jcbofkc said:
I live in KC and have not experienced any drop. My market and towers were confirmed by tmo to be running both.
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Same for LV. I have not noticed any major drop in data speed.

No 3g on GS4 T-Mobile?

Hello all!
I have an S4. It's fairly new. I like it and all, good phone. Anyway, my one beef is that I have 2 options for data service - 4g and Edge (no LTE here yet.) I wish that I could use 3g when 4g isn't available (edge is too slow) but nothing I've tried works... APN settings, cell network settings.... It's only 2g or 4g. I live in a reframed area (1900 MHz 3g... Cincinnati) which, according to the phone's specs, it should support. Tmobile support said on Twitter that it wouldn't get any 3g, but I like to take what they say with a pinch of salt, especially since a flagship phone not getting 3g is pretty ridiculous.
Any info would be appreciated. Thanks!
Sent from my SGH-M919 using xda app-developers app

Anyone know anything?
Sent from my SGH-M919 using xda app-developers app

I'll give you my best guess. T-mobile doesn't have 4G. They call it 4G, but it's really like 3.5G or HSPA. It will show on your phone as 4G though when you are connected to any "H" network or UMTS bands. When you go into menu> settings> more networks> mobile networks> network mode, you should set it to GSM/WCDMA (auto connect) to force 3.5G or 4G as tmo calls it.
I know this doesn't answer your question per se. Edge or "E" is slow as molasses. Verizon's 3G is almost as slow believe it or not (in my location).
Do you not have WIFI?

Or you can dial *#2263# and you will be in service mode. Choose Lte Gsm. It will force Lte

He doesn't have LTE
GS4

jbdan said:
I'll give you my best guess. T-mobile doesn't have 4G. They call it 4G, but it's really like 3.5G or HSPA. It will show on your phone as 4G though when you are connected to any "H" network or UMTS bands. When you go into menu> settings> more networks> mobile networks> network mode, you should set it to GSM/WCDMA (auto connect) to force 3.5G or 4G as tmo calls it.
I know this doesn't answer your question per se. Edge or "E" is slow as molasses. Verizon's 3G is almost as slow believe it or not (in my location).
Do you not have WIFI?
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Yeah, I understand that it's "3.5G" but there should be 3G too....not just "3.5G" and 2G...I'm wondering if I can get 3G on this and if not, why I don't. I have Wifi but not when I leave the house

In short the answer is no. Tmo has its network and it is the way it is. Were you with a cdma carrier (sprint / Verizon) before? Sounds like that's what you are looking for
GS4

No, AT&T and Cincinnati Bell before, never used CDMA.
I read that when T-Mobile upgraded their network, they replaced their 3g with 3.5g - leaving only a few small pockets of T-Mobile 3g remaining. Oh well, I guess that's why they're adding LTE - will be nice when they finally get their stuff straight around here!
Thanks for your help
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isoh said:
Yeah, I understand that it's "3.5G" but there should be 3G too....not just "3.5G" and 2G...I'm wondering if I can get 3G on this and if not, why I don't. I have Wifi but not when I leave the house
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I live in an area with lte but recently traveled to another city. While driving on the interstate I was getting anywhere from E (in middle of nowhere), 3G (near the city) and 4G (once in the city). So I know this phone is capable of 3G in area with no lte/4G
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baseballfanz said:
I live in an area with lte but recently traveled to another city. While driving on the interstate I was getting anywhere from E (in middle of nowhere), 3G (near the city) and 4G (once in the city). So I know this phone is capable of 3G in area with no lte/4G
☞Sent from here☜
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Thanks! Must be just T-Mo's network then. At least I'll have 4g and LTE when they finally get it here.
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isoh said:
Hello all!
I have an S4. It's fairly new. I like it and all, good phone. Anyway, my one beef is that I have 2 options for data service - 4g and Edge (no LTE here yet.) I wish that I could use 3g when 4g isn't available (edge is too slow) but nothing I've tried works... APN settings, cell network settings.... It's only 2g or 4g. I live in a reframed area (1900 MHz 3g... Cincinnati) which, according to the phone's specs, it should support. Tmobile support said on Twitter that it wouldn't get any 3g, but I like to take what they say with a pinch of salt, especially since a flagship phone not getting 3g is pretty ridiculous.
Any info would be appreciated. Thanks!
Sent from my SGH-M919 using xda app-developers app
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If I remember correctly when t-mo started with "4g" the majority of the phones had 2 radios, one for 2g and one for 3/4g and it is basically the same way still. So you're never going to see anything in regards to 3g only. but even though your data connection icon may say 4g, u could technically be on 3g at the time.