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4g service question

Hey guys,
I am a little lost on this. I was looking on the Infuse and thought about getting it and unlocking it to use with tmobile and was wondering if i would get 4g speeds on it. Here is the bands i pulled off on AT&T's website for the phone:
GSM/EDGE:GSM/EDGE 850/900/1800/1900 3G - UMTS/HSDPAHSPA 850/1900/2100 4G*HSPA+ with enhanced backhaul
According to this, it should work. Am i mistaken?
Thanks

sisco22 said:
Hey guys,
I am a little lost on this. I was looking on the Infuse and thought about getting it and unlocking it to use with tmobile and was wondering if i would get 4g speeds on it. Here is the bands i pulled off on AT&T's website for the phone:
GSM/EDGE:GSM/EDGE 850/900/1800/1900 3G - UMTS/HSDPAHSPA 850/1900/2100 4G*HSPA+ with enhanced backhaul
According to this, it should work. Am i mistaken?
Thanks
Click to expand...
Click to collapse
Um, why would you think it would work? Do you see UMTS1700 in there? I don't.

I thought it used 2100? I don't know much about the bands. Just started reading on who supported what.

tmobile uses mainly the 1700 band for 3g/4g. they also own the 700 band but i dont believe they use it. att is mostly on the 850 and 1900 bands. european and asian bands are typically 900 and 2100 so they dont really use those bands to keep unlocked phones off the network. the infuse does not work for 3g and 4g on tmobiles network, sorry.

ahh ok. that makes sense now. I've mainly stuck with tmobile phones, except tried an iphone a couple of times. but att has some cooler phones that i thougth i might want to try, but guess that won't happen now . I use the net on my phone alot, so it would be an issue.

Actually AT&T's weird bands have nothing to do with keeping unlocked phones off their network, just the fact that 2100 MHz wasn't available in the US for any carrier.
UMTS2100 is for international roaming, as it's the standard UMTS band in almost every other country.

T-Mobile uses 1700 and 2100, and you NEED both for 3G/4G to work.

i though the att bands were the same as rogers, bell, and telus use in canada? and the same as used in some other countries in the americas and in places like new zealand. i wouldnt exactly say att has the weird bands in this case.
maybe in a year or two att will merge networks with t-mo and you will have a huge selection of compatable phones.

its the same as rogers in canada, and telstra in australia. i belive bell and telus are cdma.

The Jack of Clubs said:
its the same as rogers in canada, and telstra in australia. i belive bell and telus are cdma.
Click to expand...
Click to collapse
the bell vibrant is an i9000 and the telus fascinate is a t-mo vibrant, the modems all work on the captivate. trust me they are all gsm networks and fully compatable with att phones.

3G not working. Just GSM on CM7.1 or Defy+ ROM

Hi, I bought the defy about a month ago. I bought it in south america. I live in Italy, so, when I came back, and tried to connect with my phone to the 3g network it didn't, just the GSM (the little G on the top). I'm currently using CM 7.1, but with the Defy+ ROM it did the same. Now here's a strange thing: i searched over the internet and find out that with the Defy baseband I could change the band for the Italy one, but, I'm vodafone, and the network with Italia RT on the baseband says Emergency calls only. So I used the International RT, and it worked. I thought it may be the device, so I inserted a TIM chip, but now instead of GSM I get EDGE. WTF?
I know vodafone uses 900/1800/2100...any ideas? It is possible that because I bought it elsewhere I can not connect to 3g in europe?? (even if the defy's manual says it works on Quad band GSM with GPRS/EDGE (850/900/1800/1900 MHz in all regions)
Dual band UMTS with HSPA+/HSUPA (850/1700/2100 MHz in the USA, 900/2100 MHz in Europe, and 850/2100 MHz in Australia, New Zealand and Thailand)??
Thanks for the help!!
Please, help me get my 3G back!

No one can help me? Even a hint would be great.
Thanks
Sent from my MB525 using xda premium

Use baseband switcher dude
Sent from my MB525 using xda premium

As I said before: I used baseband switcher, but it doesn't change anything. I wonder if the 3G fixes on other forums are the same as baseband switcher
Sent from my MB525 using xda premium

for 2G networks, Edge and GPRS are the data connections available.so G is for GPRS not GSM. E is for Edge (both E and G are GSM 2G). some networks have GPRS and Edge depending on the location, some only operate GRPS, it depends on the priority network planning etc..
when you tried different SIM cards you used different networks and thats why you have G or E, depends on whats available for that network in that location.
as for 3G, what country did you buy your Defy?
italy has : 900/1800 for GSM and 2100 for 3G/UMTS
south america:
-brazil has 2100 and other bands for 3G/UMTS depending on region/operator
-other countries in south america have no 2100 but only 850/900/1900
good article here on wikipedia
http://en.wikipedia.org/wiki/UMTS_frequency_bands
sadly the 3G radios in most phones are carrying one and not all frequencies so your device is as small and cheap as possible.

nolimitzz said:
for 2G networks, Edge and GPRS are the data connections available.so G is for GPRS not GSM. E is for Edge (both E and G are GSM 2G). some networks have GPRS and Edge depending on the location, some only operate GRPS, it depends on the priority network planning etc..
when you tried different SIM cards you used different networks and thats why you have G or E, depends on whats available for that network in that location.
as for 3G, what country did you buy your Defy?
italy has : 900/1800 for GSM and 2100 for 3G/UMTS
south america:
-brazil has 2100 and other bands for 3G/UMTS depending on region/operator
-other countries in south america have no 2100 but only 850/900/1900
good article here on wikipedia
http://en.wikipedia.org/wiki/UMTS_frequency_bands
sadly the 3G radios in most phones are carrying one and not all frequencies so your device is as small and cheap as possible.
Click to expand...
Click to collapse
Does that mean that even if I use baseband if my phone doesn't have the 2100 will not work in 3g? I bought it in colombia. Thanks for the answer btw. There's any mod, way to give my phone the 2100 frequency? Maybe changing a hardware part? O just I should change the phone? If I change Rom does it do anything? Sorry for all the questions
Sent from my MB525 using xda premium

In the box says made in brazil. Don't know if that's of any help. Any way I can change the 3g radio??

changing roms or baseband is of no use unless you have correct radio. did you use the phone in colombia? did 3G work? if 3G worked in colombia it will not work in Italy, if thats the case i think easiest is to change your phone if you want 3G, not sure if anyone tried to mod radio.

nolimitzz said:
changing roms or baseband is of no use unless you have correct radio. did you use the phone in colombia? did 3G work? if 3G worked in colombia it will not work in Italy, if thats the case i think easiest is to change your phone if you want 3G, not sure if anyone tried to mod radio.
Click to expand...
Click to collapse
Yes it worked there. Well, thank you for the help, I think I'll keep this for a while, but at the end I'll have to change it. I'll try to ask if maybe some other company use the 850 or 900 here also for 3G. I think, if the topic is solved. Thank you nolimizz.
Sent from my MB525 using xda premium

you're most welcome

[Q] Intl XL and X ATT - are RUU & radio interchangeable?

Since this model isn't out yet, I suppose this is not yet considered a n00b question. I am, and I'm sure many of you are also, wondering if the international One XL and the US version One X on AT&T would be able to interchange radios via RUU updates. If radios are interchangeable by themselves, is it simply a matter of S-OFF?
Why am I asking this?
I'm on T-Mobile right now, planning to use AT&T model with TMo's HSPA+, but then I am moving to Europe in a few months - in Germany, they're using LTE on 2600 MHz whilst UK is rumoured to be using LTE on 1800 MHz (though LTE there is now up in the air again).
Safe!

senkulpa said:
Since this model isn't out yet, I suppose this is not yet considered a n00b question. I am, and I'm sure many of you are also, wondering if the international One XL and the US version One X on AT&T would be able to interchange radios via RUU updates. If radios are interchangeable by themselves, is it simply a matter of S-OFF?
Why am I asking this?
I'm on T-Mobile right now, planning to use AT&T model with TMo's HSPA+, but then I am moving to Europe in a few months - in Germany, they're using LTE on 2600 MHz whilst UK is rumoured to be using LTE on 1800 MHz (though LTE there is now up in the air again).
Safe!
Click to expand...
Click to collapse
ATT bands:
LTE CAT3 - DL 100 /UL 50
LTE: 700/AWS
WCDMA: 2100/1900/AWS/850
EDGE: 850/900/1800/1900
International bands:
HSPA/WCDMA:
Europe/Asia: 850/900/1900//2100 MHz
GSM/GPRS/EDGE:
850/900/1800/1900 MHz
ATT lite band is 700/AWS. That will not work in England or Germany if you have stated the bands correctly. Both versions will work on 3G & 2G in either market.

Band compatibility is set in hardware, and cannot be changed by flashing a new radio, if that is what you are suggesting. So if you need a particular LTE band, the phone you buy needs to be compatible with that band when you buy it.

Thanks for quick responses, everyone.
If I buy the AT&T one but I'm on T-Mobile's (bulls*** fake 4G) HSPA+ which runs on AWS 1700/2100, I imagine that would work still? Or when it mentions 1700/2100 that is segregated for downlink and uplink? If that is so, then dammit, I will have to re-evalute my life!

redpoint73 said:
Band compatibility is set in hardware, and cannot be changed by flashing a new radio, if that is what you are suggesting. So if you need a particular LTE band, the phone you buy needs to be compatible with that band when you buy it.
Click to expand...
Click to collapse
I see. I brought up the question about radios because, as you probably already know - since it was on XDA headlines and that, TMo's SGS2 and ATT's Skyrocket + Galaxy Note were able to switch radios. Specifically, the Skyrocket was able to flash SGS2 HSPA+ radio and fully utilise its speeds.
References:
SGS2 & Skyrocket: http://www.gsmarena.com/compare.php3?idPhone1=4129&idPhone2=4303
SGS2 & GNote: http://www.gsmarena.com/compare.php3?idPhone1=4129&idPhone2=4374
The comparison of the Intl XL and X AT&T is making me assume that HSPA+ will work on T-Mo at least, since it supports both AWS 1700 and 1200. I guess the Intl XL only supports 2100, which continues to leave me a little confused (when comparing it to Skyrocket + TMo's HSPA+).
Ref:
http://www.gsmarena.com/compare.php3?idPhone1=4614&idPhone2=4572
Safe!

You can probably flash XL and X ATT radios, but they will operate on the same bands as always.
I have a very strong feeling that the X ATT radios will be better if you are on AT&T though.

senkulpa said:
If I buy the AT&T one but I'm on T-Mobile's (bulls*** fake 4G) HSPA+ which runs on AWS 1700/2100, I imagine that would work still? Or when it mentions 1700/2100 that is segregated for downlink and uplink? If that is so, then dammit, I will have to re-evalute my life!
Click to expand...
Click to collapse
Its impossible to be 100% positive on the compatibility, since the phone is not even released yet.
But yes, the band T-Mobile uses (1700/2100) one is used for upload, and the other for download, also known as Band IV.
The 2100 band normally included on AT&T phones (for 3G international use) is Band I. So the One XL will probably not work on T-Mobs 3G network.
They have no reason to include T-Mobs band on an AT&T phone. But they do have motivation for including Band I for its international traveling customers, since this band is widely used in Europe, Asia, and other places.

redpoint73 said:
Its impossible to be 100% positive on the compatibility, since the phone is not even released yet.
But yes, the band T-Mobile uses (1700/2100) one is used for upload, and the other for download, also known as Band IV.
The 2100 band normally included on AT&T phones (for 3G international use) is Band I. So the One XL will probably not work on T-Mobs 3G network.
They have no reason to include T-Mobs band on an AT&T phone. But they do have motivation for including Band I for its international traveling customers, since this band is widely used in Europe, Asia, and other places.
Click to expand...
Click to collapse
Since there is no release yet, we're all speculating - which is okay.
I've been researching mobile frequencies and bands, and it seems that since there is WCDMA support listed on the specifications for frequencies: 850 / 1700 / 1900 / 2100, they fall into bands:
1 (2.1 @ DL 2110-2170, UL 1920-1980)
2 (PCS 1900 @ DL 1930-1990, UL 1850-1910)
4 (AWS @ DL 2110-2155, UL 1710-1755) could be band 10 (Extended AWS)
5 (850 MHz @ DL 869-894, UL 824-849)
The sole LTE band is:
17 (LTE700 @ DL 734-746, UL 704-716)
whilst 1700 and 2100 are also used for LTE.
DL = downlink range
UL = uplink range
Referenced from:
http://niviuk.free.fr/lte_band.php
The only thing that could prevent cross-compatibility (which, as mentioned, would favour AT&T) is having the LTE chipset separate from the HSDPA chipset. Though the case may not at all be for HTC, Samsung's Skyrocket (MSM8260) and Galaxy Note (MSM8660) have a single chipset that hosts LTE and HSDPA bands - thus their radios are interchangeable.
Do any of you know the specific radio chipset that is used in the One X for AT&T?
I'm assuming it's the radio on the listed SoC Qualcomm MSM8960 - which is also on the international One XL that is specified to simply host the 1800 / 2600 bands.
Referenced from:
Wikipedia entry on the Snapdragons (take this with a grain of salt!)
Snapdragon S4 product brief
As I said, as this is all speculation, a development hack on the modem or straight compatibility, or non-compatibility, could be the case. I'm just going to keep my fingers crossed!
Thanks so far for all of your replies!

To contradict my previous post, HTC's website doesn't even list support for 1700 MHz for the AT&T version of the One XL.
http://www.htc.com/www/smartphones/htc-one-xl/#specs

I don't think it's possible. The chipsets between the XL and X are VASTLY different Qualcomm Snapdragon S4 vs. Nvidia Tegra 3.
The Skyrocket, AT&T LTE Note and T-Mo SGSII on the other hand all use the same Snapdragon S3 Qualcomm chipset.

Taknarosh said:
I don't think it's possible. The chipsets between the XL and X are VASTLY different Qualcomm Snapdragon S4 vs. Nvidia Tegra 3.
The Skyrocket, AT&T LTE Note and T-Mo SGSII on the other hand all use the same Snapdragon S3 Qualcomm chipset.
Click to expand...
Click to collapse
Simply in pertinence to my usage of "X" has always been about the AT&T derivative of the original One XL. Sorry for the wording, I'm at my uni's library - scholar mode on!

They may not be interchangeable between one x and one xl but you might be able to do that between one x and one s
Sent from my SAMSUNG-SGH-T989 using xda premium

@ senkulpa
Lets hope for them to compatible. Are you contemplating switching to AT&T if they are not?

I'm stuck on contract until November with Terrible-Mobile.
Sent from my HTC Amaze 4G using xda premium

senkulpa said:
I'm on T-Mobile right now, planning to use AT&T model with TMo's HSPA+, but then I am moving to Europe in a few months - in Germany, they're using LTE on 2600 MHz whilst UK is rumoured to be using LTE on 1800 MHz (though LTE there is now up in the air again).
Click to expand...
Click to collapse
I kind of have the inverse problem to this...
I'm in the UK currently, and hoping that EE's 1800MHz LTE network is given the green light for Q3/Q4 - I want a One X, but it won't be future-proof (i.e. LTE compatible), so a One XL would be great! Also I might be in the states quite a lot over the next couple of years, so it would be nice to have an AT&T LTE-ready phone.
Considering importing the One XL and using it over here - also have the benfit of S4 vs. Tegra 3...
Cheers,
Su

Sumanji said:
I kind of have the inverse problem to this...
I'm in the UK currently, and hoping that EE's 1800MHz LTE network is given the green light for Q3/Q4 - I want a One X, but it won't be future-proof (i.e. LTE compatible), so a One XL would be great! Also I might be in the states quite a lot over the next couple of years, so it would be nice to have an AT&T LTE-ready phone.
Considering importing the One XL and using it over here - also have the benfit of S4 vs. Tegra 3...
Cheers,
Su
Click to expand...
Click to collapse
Wouldn't be surprised to see a carrier out their own One XL variant.
I have a feeling that the One XL is international, but will require region/carrier specific versions based upon radio bands. While you can roam on HSPA+, you're going to probably be tied down to specific carriers/countries for LTE service.
Of course, development-wise this only matters for radio firmware and RILs, so development efforts won't be carrier-specific if we get S-OFF.

Deleted

senkulpa said:
Since this model isn't out yet, I suppose this is not yet considered a n00b question. I am, and I'm sure many of you are also, wondering if the international One XL and the US version One X on AT&T would be able to interchange radios via RUU updates. If radios are interchangeable by themselves, is it simply a matter of S-OFF?
Why am I asking this?
I'm on T-Mobile right now, planning to use AT&T model with TMo's HSPA+, but then I am moving to Europe in a few months - in Germany, they're using LTE on 2600 MHz whilst UK is rumoured to be using LTE on 1800 MHz (though LTE there is now up in the air again).
Safe!
Click to expand...
Click to collapse
They're the same radio and software, but physical antennas cannot be changed. Either it has it, or it doesn't.

LTE in Kuwait under 1800MHz

Folks,
Please take a Min and help a me out. Me and wife are currently stationed and residing in Kuwait.We are using an Unlocked Roger Canada XT925. boot-loader unlocked as well Kuwait launched 4G LTE service late last year. The LTE network runs on 1800MHz band 3. the same Band as Telstra Australia, and O2 Germany. i have tired almost everything to get my LTE working, yet no luck. Now, the service run on the Iphone 5 and my LTE USB dongle with no problems.
List of things i tried.
1- flashed the following firmware using RSD LITE 6.4
a- JB Telstra Australia
b- JB Orange France- LTE ON
c- JB SFR France- LTE ON
d- JB Retail Brazilian
Currently running JB O2 Germany
2- tired the service menu to switch to LTE and that didn't work.
3- Attempted to change the band but unable to select or change.
4- the SIM card work fine on the Iphone, so no sim issue
5- The service is activated

Oops I answered on the thread in dev section lol here's my answer:
4G isn't really LTE. Since you said it uses the same band as used the other 2 providers you should be able to access LTE by flashing the correct radios or the whole rom & using an LTE sim
Click to expand...
Click to collapse
Sent from my XT925

saloums7 said:
Oops I answered on the thread in dev section lol here's my answer:
Sent from my XT925
Click to expand...
Click to collapse
I understand the different between 4G, 4G+ and LTE. Kuwait is LTE running on 1800MHz B3. my sim card is LTE. when i switch the sim card to the iphone 5 the LTE works fine. I listed all the firmware i tried. im not sure what im missing here

I will write it again
There are 3 version of Razr Hd
XT926 for Verizon
XT925 for Canada, 4G band 700/1700/2100
XT925 for UK & Australia 4G bands 800/1800/2600
That's mean if you bought your device from US or Canada then don't waste your time, 4G will not work...
But if you have the Europe or Australian version then you need to flash the correct firmware.

[Q] AT&T LTE on Verizon model?

So I've acquired a Verizon M8 and looking at the possibility of getting it fully functional on AT&T LTE. Haven't found anything through search yet other than it doesn't work stock. Flashing new radio? AT&T Rom?

nothinbutnick56 said:
So I've acquired a Verizon M8 and looking at the possibility of getting it fully functional on AT&T LTE. Haven't found anything through search yet other than it doesn't work stock. Flashing new radio? AT&T Rom?
Click to expand...
Click to collapse
I had one and couldn't even get it to run 3G or HSPA+. Only thing i could get it to run was Edge. Not to sure why but I sold it. Have you had any luck getting 3G at least?

http://gigaom.com/2013/07/10/att-is...performance-tests-heres-atts-explanation-why/
Show it.

nothinbutnick56 said:
So I've acquired a Verizon M8 and looking at the possibility of getting it fully functional on AT&T LTE. Haven't found anything through search yet other than it doesn't work stock. Flashing new radio? AT&T Rom?
Click to expand...
Click to collapse
I used this same data in another thread, figured it might be useful here. Basically, you'd potentially restrict yourself a great deal by using a Verizon M8 on AT&T's network.
I think we need to know what’s theoretically possible with these phones first. Here is what the Verizon M8 has the ability to use:
3G (GSM): 850/900/1900/2100 MHz with HSPA+ up to 14.4 Mbps
LTE: 700/AWS/1800/2600 MHz
Click to expand...
Click to collapse
Source: M8 spec page
As it currently stands, these are the 3G and LTE frequencies for AT&T:
3G: 850/1900 MHz up to 21 Mbps
LTE: 700/AWS/1900/2300 MHz
Click to expand...
Click to collapse
Sources:
List of LTE networks - Wikipedia
AT&T Mobility - Wikipedia
What this means is that the Verizon M8 would only be able to use AT&T's 3G up to 14.4 Mbps and not the full 21 Mbps (probably not a big deal). However, for LTE, it could only access 700 MHz and AWS, so you'd be out of luck if you're in an area that only has 1900 or 2300 MHz.
Again, this is all theoretical since it’s not totally easy to get a carrier-specific model to run LTE on another network, but someone had luck getting a Verizon model to run on T-Mobile’s network: http://forum.xda-developers.com/showthread.php?t=2710720