I know the original vibrant was a pentaband phone, supporting AT&T's 850/1900 networks as well as t-mobiles 3g networks....
Can anyone confirm the 3g bands on the new Vibrant 4g?
Will there be fast 3g 21mbps for 850/1900 on the modem chip also? ( or 4g whatever you want to call it, in my book its just faster 3g..)
someone enter the debug screen and check which bands are available...
cheers!
stealthj said:
I know the original vibrant was a pentaband phone, supporting AT&T's 850/1900 networks as well as t-mobiles 3g networks....
Can anyone confirm the 3g bands on the new Vibrant 4g?
Will there be fast 3g 21mbps for 850/1900 on the modem chip also? ( or 4g whatever you want to call it, in my book its just faster 3g..)
someone enter the debug screen and check which bands are available...
cheers!
Click to expand...
Click to collapse
How do I get to the debug screen? *#*#4636#*#* gives me WCMDA/GSM under phone info
Sent from my SGH-T959V using XDA App
stealthj said:
I know the original vibrant was a pentaband phone, supporting AT&T's 850/1900 networks as well as t-mobiles 3g networks....
Can anyone confirm the 3g bands on the new Vibrant 4g?
Will there be fast 3g 21mbps for 850/1900 on the modem chip also? ( or 4g whatever you want to call it, in my book its just faster 3g..)
someone enter the debug screen and check which bands are available...
cheers!
Click to expand...
Click to collapse
Curious about this as well. Currently using a vibrant on at&t...
Sent from my SGH-T959 using Tapatalk
stealthj said:
I know the original vibrant was a pentaband phone, supporting AT&T's 850/1900 networks as well as t-mobiles 3g networks....
Can anyone confirm the 3g bands on the new Vibrant 4g?
Will there be fast 3g 21mbps for 850/1900 on the modem chip also? ( or 4g whatever you want to call it, in my book its just faster 3g..)
someone enter the debug screen and check which bands are available...
cheers!
Click to expand...
Click to collapse
HSPA+ 21 only works with T-mobile, AT&T doesn't use an AWS band, in this case is 1700/2100Mhz.
Someone may have been able to 'trick' the vibrant into using a basic UMTS band on AT&T, but I never heard of it, let alone heard that the Vibrant supported AT&T 3G. The Vibrant has GSM.support for them (2G), I haven't seen anything else.
Where's the supporting documents that people have been getting At&t 3G with a T-Mobile Vibrant?
Sent from my HTC Vision using XDA App
TheMan42 said:
HSPA+ 21 only works with T-mobile, AT&T doesn't use an AWS band, in this case is 1700/2100Mhz.
Someone may have been able to 'trick' the vibrant into using a basic UMTS band on AT&T, but I never heard of it, let alone heard that the Vibrant supported AT&T 3G. The Vibrant has GSM.support for them (2G), I haven't seen anything else.
Where's the supporting documents that people have been getting At&t 3G with a T-Mobile Vibrant?
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
Trust me.... I'm using a vibrant on at&t with 3g. It does support the wcdma 1900 band. There is alot of evidence of this...heck engadget made a post about this... google it!
Edit: What I was trying to ask is if the galaxy s 4g supports the 1900 wcdma that the original vibrant supported....
Sent from my SGH-T959 using Tapatalk
Not sure how I could check unless i unlocked it..
Sent from my SGH-T959V using Tapatalk
princedwi said:
Not sure how I could check unless i unlocked it..
Sent from my SGH-T959V using Tapatalk
Click to expand...
Click to collapse
That would work....hopefully the galaxy s 4g can be unlocked the same way the previous galaxy s phones could.
In my research I have found that 4G is not backwards compatable with 3G. Someware I read that companys are putting 3G and 4G chips on the new 4G phones to bridge the gap between the 3G chip ability to handle voice and the 4G chip being able to handle data. I can't say for sure if SGS4G has both chips. It's a know issue that the 3G SGS misses calls when connected to a laptop because It does not handle data well in combination with voice. That's why I upgraded to the 4G. I don't think Its going to make a lot of difference until TM gets their HW in place with a backbone that can support it.
Samsung Galaxy S 4G 1900 MHz WCDMA
I bought my Samsung Galaxy S 4G at a T-Mobile store in San Francisco. I subsequently upgraded it to the latest firmware provided by T-Mobile using Samsung Kies.
I usually use WCDMA only mode because GSM causes awful buzzing sound when I use it in my car (I have a FM transmitter connected to my phone).
Anyways, I was curious to see if I'd see AT&T, so I searched for network (still under WCDMA Only mode), and it found both AT&T and T-Mobile.
I pressed *#197328640# in the dialer, and then went to the debug screen/band selection to look at available bands, and it actually does have 1900 WCDMA.
It shows
GSM 850, 900, 1800, 1900, WCDMA 2100 (FDD I), WCDMA 1700 (FDD IV), WCDMA 1900(FDD II).
I don't know if AT&T SIM would work since my phone is locked but I can report back once I get it unlocked.
EDIT: Reading an old post of mine, I realized that my memory played a bad trick on me. My tests DID work on 1900 WCDMA and DID NOT work on 850 WCDMA, just opposite to what I wrote earlier in this post. --sorry
fm219 said:
...Anyways, I was curious to see if I'd see AT&T, so I searched for network (still under WCDMA Only mode), and it found both AT&T and T-Mobile.
I pressed *#197328640# in the dialer, and then went to the debug screen/band selection to look at available bands, and it actually does have 1900 WCDMA.
It shows
GSM 850, 900, 1800, 1900, WCDMA 2100 (FDD I), WCDMA 1700 (FDD IV), WCDMA 1900(FDD II).
I don't know if AT&T SIM would work since my phone is locked but I can report back once I get it unlocked.
Click to expand...
Click to collapse
I don't think it would work. For reference, here is a side by side band comparison between my Vibrant (tested 3G on AT&T) and my coworker's SGS 4G (locked, untested).
The essential band here is the 850 1900 WCDMA, but the "overflow" 850 WCDMA is missing and I couldn't make it work anyways (I'm in Houston, maybe it is not switched on here).
My understanding is that AT&T usually uses 1900MHz for 3G, and in certain cities where they don't have enough bandwidth in 1900 MHz like NYC and SF, they use 850MHz.. so you could still get by with only 1900 MHz, no?
EDIT: Reading my old post, my memory played a bad trick on me. My test DID work on 1900 and DID NOT work on 850, just opposite to what I wrote earlier on this post.
fm219 said:
My understanding is that AT&T usually uses 1900MHz for 3G, and in certain cities where they don't have enough bandwidth in 1900 MHz like NYC and SF, they use 850MHz.. so you could still get by with only 1900 MHz, no?
Click to expand...
Click to collapse
Yep, thats what I have heard as well. Now one thing of note. When I tested my Vibe, it only worked on the 850 1900 WCDMA band. Could not make it work on the 850 no matter how hard I tried. I'm in Houston for that matter and maybe this 850 WCDMA is not enabled here.
This was my test: http://forum.xda-developers.com/showpost.php?p=9958501&postcount=14
fosormic said:
EDIT: Reading an old post of mine, I realized that my memory played a bad trick on me. My tests DID work on 1900 WCDMA and DID NOT work on 850 WCDMA, just opposite to what I wrote earlier in this post. --sorry
I don't think it would work. For reference, here is a side by side band comparison between my Vibrant (tested 3G on AT&T) and my coworker's SGS 4G (locked, untested).
The essential band here is the 850 1900 WCDMA, but the "overflow" 850 WCDMA is missing and I couldn't make it work anyways (I'm in Houston, maybe it is not switched on here).
Click to expand...
Click to collapse
I'm currently unlocked on AT&T and i'm on 3G. I ALWAYS have an issue with upload speeds, but otherwise download speeds are just fine.
I attached four photos, of the available bands with my CURRENT galaxy S 4G unlocked on AT&T.
Also, a speed test I ran. That download speed is WAY higher than average because it was taken when the network was under the lightest usage possible, late at night.
Oh wow, over 5Mbps download on AT&T?
Are you on AT&T's 4G (HSPA+) or 3G?
I'm supposedly on T-Mobile 4G (my phone shows 4G when I download/upload), but I don't ever get 5Mbps. I get usually something around 2~3Mbps down and 1Mbps upload. I'm in the Bay Area.
I went into phone debug page, and one of the screens says HSDPA[0], HSUPA[0]. It also says network status: HSDPA (sorry I don't have the exact info on me right now).
Am I really just on HSDPA, not HSPA+? Is there a definite way to find out what my phone is using? Thank you.
fm219 said:
Oh wow, over 5Mbps download on AT&T?
Are you on AT&T's 4G (HSPA+) or 3G?
I'm supposedly on T-Mobile 4G (my phone shows 4G when I download/upload), but I don't ever get 5Mbps. I get usually something around 2~3Mbps down and 1Mbps upload. I'm in the Bay Area.
I went into phone debug page, and one of the screens says HSDPA[0], HSUPA[0]. It also says network status: HSDPA (sorry I don't have the exact info on me right now).
Am I really just on HSDPA, not HSPA+? Is there a definite way to find out what my phone is using? Thank you.
Click to expand...
Click to collapse
Technically I'm on HSPA+, though this phone doesn't even cover all of the "necessary" bands.
Look, to edit what bands you're on go into the market and download SGS Tools.
Then, go into the first line (Secret Codes) and hit Band Selection.
I'm on AT&T so I'm not sure what bands you need, but you can manually select them in there.
To check the band you're on, go to GSM Status in the "Secret Codes" page again.
Sent from my SGH-T959V using XDA Premium App
Oh I know I'm on 1700/2100 MHz because that's the only frequency (AWS) that T-Mobile uses for WCDMA/UMTS/4G/3G.
I downloaded Phono, and it says Network Type is HSDPA. Shouldn't it say HSPA+? I'm just wondering if there's an easy way to tell if I'm really on 4G (aka HSPA+) as opposed to 3G.
I actually messed around with debug settings last night so I'm worried that I screwed it up....
Thank you!
fm219 said:
Oh I know I'm on 1700/2100 MHz because that's the only frequency (AWS) that T-Mobile uses for WCDMA/UMTS/4G/3G.
I downloaded Phono, and it says Network Type is HSDPA. Shouldn't it say HSPA+? I'm just wondering if there's an easy way to tell if I'm really on 4G (aka HSPA+) as opposed to 3G.
I actually messed around with debug settings last night so I'm worried that I screwed it up....
Thank you!
Click to expand...
Click to collapse
Which debug settings did you change?
And as for Phono (which I've never even heard of/used until now), my phone says HSDPA as well, which, quite frankly, makes no sense. I guess you can technically get speeds of around 5MBPS on HSDPA but it's not typical.
You should easily be able to tell whether you're on HSDPA or HSPA+ with the 4G/3G connectivity icon. in your status bar.
Now, I'm no expert, but hopefully that answers your question.
I played around with GCF settings. When I go into debug mode, there was something about choosing Rel.6 or Rel.5 or cancel settings.. And then also, if you do *#3214789#, you can enable/disable GCF Mode.. which I have no idea what it is about....
Thanks!
fm219 said:
I played around with GCF settings. When I go into debug mode, there was something about choosing Rel.6 or Rel.5 or cancel settings.. And then also, if you do *#3214789#, you can enable/disable GCF Mode.. which I have no idea what it is about....
Thanks!
Click to expand...
Click to collapse
Hmm...that's awfully strange.....
I can't find anything about it anywhere....
Try restoring using ODIN yet?
I mean, if the phone is that messed up since you messed with that setting.
I put my friends att sim in my unlocked sgs4g to test and the 3g sign came up by the bars as well as the att operator logo didn't really test out speeds but im guessing that the 3g sign wouldn't have came up unless it was really picking up that frequency.
Related
Is anyone using the Samsung Omnia 7 on AT&T? I know it has support for AT&T's 1900 band for 3G but wanted to know how the experience is. I'm in Germany this week and was hoping to see if I can pick one up [not really happy with any of the AT&T phones].
Also, with updates possibly being controlled by carriers what's the workaround for buying an unlocked device from overseas and using it in the US on AT&T?
Thx!
can't tell you about omnia on at&t, but as far as i'm aware if your phone is unlocked from carrier, i don't see any reason/possibility for them to delay an update being rolled to your phone.
Cool, thx.
You should be able to get updates via the Zune software.
I'm sorry. this is my first post for this forum. Im not educated on on the compatibility of the EU phones on US carriers....
But is this really possible? I really like the SS Omnia the best so far.
an unlocked ominia will work perfectly fine on AT&T?
it will work perfectly.. except for the lack of 3G. The omnia lacks the all important 850 band at&t uses... and the 1700 band tmobile uses.
An explanation for "The omnia lacks the all important 850 band at&t uses" would be useful as AT&T also supports 3G on the 1900 band that the Omnia 7 supports. So seems like it should work...
shujaa said:
An explanation for "The omnia lacks the all important 850 band at&t uses" would be useful as AT&T also supports 3G on the 1900 band that the Omnia 7 supports. So seems like it should work...
Click to expand...
Click to collapse
Dependa on the tower. Lacking tje 850 band is a big deal on att.
Sent from my SGH-T959 using XDA App
Thanks for that response. I really wanted to see if I could sneak away with the omnia as the focus isn't really as good
shujaa said:
Thanks for that response. I really wanted to see if I could sneak away with the omnia as the focus isn't really as good
Click to expand...
Click to collapse
One advantage with the Focus is it has an SD card slot to extend storage.
If you use you phone for music,movies and games it's a big +.
N8ter said:
Dependa on the tower. Lacking tje 850 band is a big deal on att.
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
lacking 850 is not a problem since only mayor citied like new york, san fran, dallas etc. have 850 and the majority of normal city only have 1900. so 1900 is fine given you don't have access to hsdpa and hsupa, only regular 3g. now if only i can find an unlock omnia 7 under $650.
akachay said:
lacking 850 is not a problem since only mayor citied like new york, san fran, dallas etc. have 850 and the majority of normal city only have 1900. so 1900 is fine given you don't have access to hsdpa and hsupa, only regular 3g. now if only i can find an unlock omnia 7 under $650.
Click to expand...
Click to collapse
There are maps available showing coverage for each AT&T 3G frequency band. I wouldn't dismiss one band over the other. It all depends on what city you live in.
Check into the coverage areas before you waste money on a phone that won't give you 3G coverage in your area.
Very interesting as I googled AT&T 850 vs. 1900 MHz Coverage and pulled up a very interesting map [can't post a link due to my post count].
Coverage of the two bands is almost identical. I didn't know that speed is something to give up on the 1900 band though.
Good info. Yeah, I'm in Europe this week and no one is offering it unlocked!
here's the maps.
http://www.cellularmaps.com/att_850_1900.shtml
my question would be though, which is the band they are going to expand going forward???
so what's the difference between these bands? the phone does both so you would be "covered" so to speak
Krissrock said:
so what's the difference between these bands? the phone does both so you would be "covered" so to speak
Click to expand...
Click to collapse
I'll be asking at an AT&T store, perhaps they can shed some light...
i personally am not sure if all phones handle the varying bands straight from the OEMs. HTC lists what bands their phone supports to each region, but in saying that it would be good to know what would happen if you got a omnia to the US (or in my case if i somehow managed to get an unlocked focus to australia ).
Krissrock said:
so what's the difference between these bands? the phone does both so you would be "covered" so to speak
Click to expand...
Click to collapse
I don't think the phone supports at&t's 850mhz band.
according to this it does
http://www.pdadb.net/index.php?m=pd...icially_confirmed_windows_phone_7_smartphones
and this
http://www.gsmarena.com/samsung_i8700_omnia_7-3537.php
GSM850, GSM900, GSM1800, GSM1900, UMTS900, UMTS1900, UMTS2100
CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA
From what i've heard, ATT doesn't even really use the 850 spectrum much anymore...
Several people are selling this new on eBay for ~$600, but it does not support 3G. As per the one auction details:
* Works with AT&T and T-mobile EDGE but does not work with 3G networks in the USA
* Works with AT&T 1900Mhz 3G but not AT&T 850mhz 3G - Does not work with T-mobile 3G in the USA
I love the design of this phone too but is it worth paying all that money for a phone where you won't be able to take advantage of all its features? Edge is slow as Sh*t compared to 3g in my area. Just consider that if you really want this phone in the US.
Hey guys does anyone know if the the new Nexus S will work on AT&T at 3G speeds? Thanks all
nope, it will work on Edge only
Maybe in the future like they did with the nexus one
Sent from my Nexus One using XDA App
as skunz said there is always a chance of an AT&T version, but for now T-Mobile 3G only.
They should... They did with the nexus one. I will wait, because i made the mistake of buying the tmobile one, then a couple weeks later the at&t 3g on was announced. haha
is ATT 3G better than TMO
I am currently on ATT with IPhone 4. Ready to dump the iPhone and get the Nexus S.
Should I wait for the ATT to come out? Is ATT 3G better than TMO? Why?
Thanks
mkilci said:
I am currently on ATT with IPhone 4. Ready to dump the iPhone and get the Nexus S.
Should I wait for the ATT to come out? Is ATT 3G better than TMO? Why?
Thanks
Click to expand...
Click to collapse
Is your contract over? I'm guessing not You'll be stuck with EDGE (2G) on AT&T if you decide to get the Nexus. Wait a month or two, they should have an AT&T version in the works, hopefully
mkilci said:
I am currently on ATT with IPhone 4. Ready to dump the iPhone and get the Nexus S.
Should I wait for the ATT to come out? Is ATT 3G better than TMO? Why?
Thanks
Click to expand...
Click to collapse
T-Mobile 3G is 4x faster than ATT 3G.
And wtf guys?
I'm pretty sure the Nexus S natively supports AT&T 3G:
Quad-band GSM: 850, 900, 1800, 1900
Tri-band HSPA: 900, 2100, 1700
http://www.google.com/nexus/#!/tech-specs
"AT&T uses the 850/1900 MHz frequency spectrum for 3G data"
"T-Mobile exclusively uses the AWS 1700/2100 MHz frequency-ban"
Here we have 850, 1900, 1700, and 2100.
This is full 3g for ANYTHING. Whether it's T-Mobile, AT&T, Europe.. blah.
Quad-band GSM applies to EDGE/Voice only. HSPA bands on the phone are what you need to be looking at when determining 3g capability.
ZeroSX said:
Quad-band GSM applies to EDGE/Voice only. HSPA bands on the phone are what you need to be looking at when determining 3g capability.
Click to expand...
Click to collapse
Ah ic. Guess I'm wrong then. Facepalm.
It seems as though history might repeat itself. I would be willing to bet this phone will (or already does) exist in an AT&T flavor. I wouldn't mind taking a break from the iP4 for a bit, especially with this device. The reason I gave up my 3GS was for the N1, and it was groundbreaking and revolutionary. I don't know if I have the same thoughts on this device (because dual cores will probably be unveiled at CES '11), but nonetheless, this phone is and will be epic in it's own right, and always will be. I'm excited as hell for this device.
lets hope Sammy snuck the ATT 3G bands in like they did with the T-Mobile Vibrant
http://www.engadget.com/2010/08/22/confirmed-galaxy-s-unlock-codes-are-stored-in-your-phone-vibra/
That was the 1900Mhz bands, which AT&T USED to use for 3G. They're slowly phasing it out, and only some metros where they originally rolled out 3G still use those bands. They mainly use 850Mhz for 3G.
cpcrazyfly said:
lets hope Sammy snuck the ATT 3G bands in like they did with the T-Mobile Vibrant
http://www.engadget.com/2010/08/22/confirmed-galaxy-s-unlock-codes-are-stored-in-your-phone-vibra/
Click to expand...
Click to collapse
oh man, i'm keeping my finger crossed!
cpcrazyfly said:
lets hope Sammy snuck the ATT 3G bands in like they did with the T-Mobile Vibrant
http://www.engadget.com/2010/08/22/confirmed-galaxy-s-unlock-codes-are-stored-in-your-phone-vibra/
Click to expand...
Click to collapse
This would be truly amazing.
Am I right in thinking that if I see a letter H over my bars, that's faster than 3G. Like 3.5G or something?
bedalus said:
Am I right in thinking that if I see a letter H over my bars, that's faster than 3G. Like 3.5G or something?
Click to expand...
Click to collapse
H = HSDPA Connection
3G = UMTS Connection
I will let Google take it from there.
Sent from my Nexus S using XDA App
I have just 2G speed (checked by speedtest) with my Atrix 2!
As you know switcher 2G/3G is disabled on our phone!
I certainly have 3G on my account, I checked my SIM card with other phone and other SIM card with Atrix 2 and got just E icon (2G).
Any ideas???
did u check ur service provider does support the A2 3g frequency??? you need 850 / 1900 / 2100 either one of them to get 3g or 4g Speed.
athris said:
did u check ur service provider does support the A2 3g frequency??? you need 850 / 1900 / 2100 either one of them to get 3g or 4g Speed.
Click to expand...
Click to collapse
I use USA T-Mobile.
So does it mean that AT&T Phones don't support 3G or 4G T-Mobile Internet even if unlocked?
From what I remember from the ATRIX forums is they use the same frequencies but with a AT&T phone on T-Mobile u will only have Edge or 2G speeds. No 3G or Hspa+
JRW 28 said:
From what I remember from the ATRIX forums is they use the same frequencies but with a AT&T phone on T-Mobile u will only have Edge or 2G speeds. No 3G or Hspa+
Click to expand...
Click to collapse
Could you provide with links?
I'm going to return phone if this case .
If I root phone will I get 3G?
yup, as far as u know Tmobile USA only support 1700 but atrix 2 doesn't support that so you wont get 3g from it.
Also you wont get 3g even u root it, root doesn't do anything with the hardware.
athris said:
yup, as far as u know Tmobile USA only support 1700 but atrix 2 doesn't support that so you wont get 3g from it.
Click to expand...
Click to collapse
It is said that tmobile supports 1700/2100 Mhz for 3G in wiki and Atrix 2 supports 2100 Mhz.
I think that's 2100 MHz is not the real 2100 band. It means 1700 download and 2100 upload. For more information, i think it is better to ask those peoples who are using tmobile usa.
I haven't run across any AT&T phone so far that works with T-mobile on anything but EDGE.
I think the galaxy s2 can. Someone has 3g ln there T-Mobile gs2. And they get better speeds lol
gunnyman said:
I haven't run across any AT&T phone so far that works with T-mobile on anything but EDGE.
Click to expand...
Click to collapse
Sent from my SAMSUNG-SGH-I777 using XDA App
T-Mobile uses 1700Mhz/2100Mhz for UMTS/HSPA.
Like AT&T, they have 4 total bands for coverage, they do not use 1700 down and 2100 up. You pick either one. TMobile has a big disadvantage here, since with out a low frequency to carry hspa, they don't get any where close to the footprint per tower AT&T does.
Frankly TMobile is odd-man out in the US, and I am really surprised they have as many subscribers as they do.
All that said, my question is: How did you unlock an Atrix 2?
Well after moths investigating on internet and different carriers in my country I can solve this, the thing is here we have HSPA+ "4G" i'm with Digicel right now but the thing is I still getting 3G, moreover settings>about>status>mobile net type says HSDPA and I've confirmed they use 1900Mhz for 4G
Customer service as always don't even know what all of this things are so this is my last resort to solve this mystery. Is the carrier or the phone??????
thanks in advance
**delete**
Thanks for the reply but the post don't really help me because Digicel only use 1900 as I said I got 3G but not HSPA+. When I enable/disable wcdma 1900 is it turns to 3G/edge instead of "4G"
inmortal009 said:
Thanks for the reply but the post don't really help me because Digicel only use 1900 as I said I got 3G but not HSPA+. When I enable/disable wcdma 1900 is it turns to 3G/edge instead of "4G"
Click to expand...
Click to collapse
When choosing a phone, what frequencies will work on this network?
· Our 4G network will work well with any 3G+ handset which supports 2100 MHz.
This is off of one of Digicel's websites.
lumin30 said:
When choosing a phone, what frequencies will work on this network?
· Our 4G network will work well with any 3G+ handset which supports 2100 MHz.
This is off of one of Digicel's websites.
Click to expand...
Click to collapse
Sorry for don't mentioned this before but I'm with Digicel Panamá, here the only available bands are 850 and 1900 and they only use 1900. However I tested with 2100 only enabled and doesn't work.
This phone can use 1900mhz too, for some reason I only get 3.5G instead 4G or H+ symbol...
I am with Cincinnati Bell and have never been able to get my phone on 4g (except when I was in Chicago). I have spent hours on the phone with customer service, reading forums, posting questions and I still to this day only get 3g. There is something odd about this phone using another (smaller) carriers 4g (hspa+).
However, I know that there are a lot of people that use Simple Mobile with our phone and 4g is no problem... so idk
jigglynuts said:
I am with Cincinnati Bell and have never been able to get my phone on 4g (except when I was in Chicago). I have spent hours on the phone with customer service, reading forums, posting questions and I still to this day only get 3g. There is something odd about this phone using another (smaller) carriers 4g (hspa+).
However, I know that there are a lot of people that use Simple Mobile with our phone and 4g is no problem... so idk
Click to expand...
Click to collapse
Well I give up there is nothing left to try and we'll never know the cause of the problem
An almost identical topic already exists in HTC One S section (Radio UMTS/HSPA switching bug (3g/4g)), but I was thinking that maybe there is a different possible fix for Blaze 4G.
I am currently on the AT&T network using Straight Talk SIM. On the status bar it displays 3G with enough bars, but from time to time it stops receiving data in the middle of the transaction. When it happens, the mobile network type is shown as UMTS under "About phone" -> "Status". When it switches back to HSPA, the data resumes. It really messes up my browsing a lot
When I was still on T-Mobile, it did not seem to happen, as the connection was either "4G" or E (mobile network types HSPA+ or EDGE, respectively). I never noticed UMTS in the phone status while using T-Mobile.
One of the reasons I chose Blaze 4G is because it supports both AWS and 1900 bands, so it can work on AT&T and T-Mobile networks. As we know, T-Mobile coverage is not great, so the connection often switched from "4G" to edge. Being on AT&T, the connection firmly stays on 3G, but now I have this annoying bug.
Your input and suggestions would be highly appreciated! By the way, I am using a stock ROM with root.
I have had the same issue with my GS3 as well as my S2 and Sensation, all on T-Mobile. It is something I've noticed. Another thing I noticed, that is shady on T-Mobile's end, is that they show "4G" even if it is on UMTS.
RevenG said:
I have had the same issue with my GS3 as well as my S2 and Sensation, all on T-Mobile. It is something I've noticed. Another thing I noticed, that is shady on T-Mobile's end, is that they show "4G" even if it is on UMTS.
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Blaze only has 4g, E, and G, while on T-Mobile that's why it displays 4g while in umts, Umts is 3g and since there is no 3g icon it shows as 4g, hspa+ is "4g"
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RevenG said:
I have had the same issue with my GS3 as well as my S2 and Sensation, all on T-Mobile. It is something I've noticed. Another thing I noticed, that is shady on T-Mobile's end, is that they show "4G" even if it is on UMTS.
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Click to collapse
Is that shady? UMTS Band IV (AWS) provides HSPA+ service. Looks like 1700MHz will be split 50/50 for GSM and H+ coverage, and teh 1900MHz will be split LTE/H+ by next year.
TMO said:
As part of its transition to deploy LTE on its 1700 MHz spectrum, T-Mobile will refarm its PCS spectrum to support both 2G GSM services and HSPA+ services. In a recent FCC filing, T-Mobile said by mid-2013, its expects half of its 1900 MHz spectrum to be devoted to GSM while the other half will run HSPA+ services, and that by then half of its AWS spectrum will support HSPA+ and the other half LTE.
Read more: T-Mobile to test HSPA+ in 1900 MHz for iPhone - FierceWireless http://www.fiercewireless.com/story/t-mobile-test-hspa-1900-mhz-iphone/2012-06-08#ixzz24wzhoLRc
Subscribe: http://www.fiercewireless.com/signup?sourceform=Viral-Tynt-FierceWireless-FierceWireless
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http://www.fiercewireless.com/story/t-mobile-test-hspa-1900-mhz-iphone/2012-06-08
This chart also indicates that the AWS and PCS spectrums are both used for H+ communications. However, it is a tid bit simplified...
http://en.wikipedia.org/wiki/T-Mobile_USA#Radio_frequency_spectrum_chart
---------- Post added at 11:00 AM ---------- Previous post was at 10:53 AM ----------
Have you tried flashing the other radio? I'm not sure which radio you're using, or if the other one will perform better. However, it does seem like your problem is being caused by the radio.
E107946 said:
An almost identical topic already exists in HTC One S section (Radio UMTS/HSPA switching bug (3g/4g)), but I was thinking that maybe there is a different possible fix for Blaze 4G.
I am currently on the AT&T network using Straight Talk SIM. On the status bar it displays 3G with enough bars, but from time to time it stops receiving data in the middle of the transaction. When it happens, the mobile network type is shown as UMTS under "About phone" -> "Status". When it switches back to HSPA, the data resumes. It really messes up my browsing a lot
When I was still on T-Mobile, it did not seem to happen, as the connection was either "4G" or E (mobile network types HSPA+ or EDGE, respectively). I never noticed UMTS in the phone status while using T-Mobile.
One of the reasons I chose Blaze 4G is because it supports both AWS and 1900 bands, so it can work on AT&T and T-Mobile networks. As we know, T-Mobile coverage is not great, so the connection often switched from "4G" to edge. Being on AT&T, the connection firmly stays on 3G, but now I have this annoying bug.
Your input and suggestions would be highly appreciated! By the way, I am using a stock ROM with root.
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snoopy1e11 said:
Blaze only has 4g, E, and G, while on T-Mobile that's why it displays 4g while in umts, Umts is 3g and since there is no 3g icon it shows as 4g, hspa+ is "4g"
Sent from my SGH-T769 using xda premium
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Click to collapse
Actually it does have a 3G icon smart guy
I never seen a 3g icon and I live in a 3g area. Smartguy
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I have only seen 4g and e, but never 3g
Sent from my SGH-T769
I have been in a couple areas where it kept switching between 4g and 3g so don't assume there is no icon just because it has never been on your phone.
Screenshots or it didnt happen
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If it happens again I will
For what it is worth, my unlocked Blaze 4G running on WIND Network in Canada (HSPA/HSPA+) only shows 3G icon and always says UMTS in Phone->Status, running UVLF4 radio.
myorks1127 said:
If it happens again I will
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theshowman said:
For what it is worth, my unlocked Blaze 4G running on WIND Network in Canada (HSPA/HSPA+) only shows 3G icon and always says UMTS in Phone->Status, running UVLF4 radio.
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Exactly so the phone is CAPABLE of showing 3G in the signal indication, mine is stock
theshowman said:
For what it is worth, my unlocked Blaze 4G running on WIND Network in Canada (HSPA/HSPA+) only shows 3G icon and always says UMTS in Phone->Status, running UVLF4 radio.
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I did say "on T-Mobile" I have no doubts it'll show 3g on unlocked or another sim but as I say I live in a 3g area my phone shows umts with 4g icon
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And here is the screenshot to prove, happened to me today at the gym. Stock everything as well.
Have you tried flashing the other radio? I'm not sure which radio you're using, or if the other one will perform better. However, it does seem like your problem is being caused by the radio.
Click to expand...
Click to collapse
I am using a stock radio because it supports both 1700 MHz and 1900 MHz bands (Tmo and AT&T) - that is why I bought this phone in the first place. I am not sure there are other radios around for my phone, and even if there are, I am not sure what benefit I would get from flashing a non-stock radio. Very few phones support bands for both GSM providers in the USA; usually, it is either Tmo or AT&T.
On a another note: I got a Tmo SIM card from Straight Talk, and now I do not have this UMTS switching bug. The coverage is a bit worse, but where I have HSPA+, it is still 2-3 times faster than what I got from AT&T HSPA network.
myorks1127 said:
And here is the screenshot to prove, happened to me today at the gym. Stock everything as well.
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It is not surprising, as T-mobile is rolling out HSPA+ on 1900 MHz band. It will be happening more in the future as more areas will be re-farmed. Since there are only few T-mobile phones that can support 1900 MHz, other users will not see it happen. On the other hand, those few with iPhones on T-mobile network can finally see 3G.
What puzzles me is why it shows 3G instead of "4G" on 1900 MHz band right now? Do they need to upgrade this band to HSPA+ during re-farming?
myorks1127 said:
Actually it does have a 3G icon smart guy
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Click to collapse
Yep, it absolutely does on dark knight build 8.
Oh you guys are talking about ...stock..?
Yeah no 3g icon on stock as T-Mo views all 3g as 4g now. There's no 3g icon on ANY 4g T-Mo phone's stock rom (with a T-Mo sim card). It is how they claimed to have the 'largest 4g network' during that ad campaign. Funny how T-Mo no longer claims that (or is no longer allowed to claim that)....
Here where I live I only have 3g. I have verified this using speedtest where I have never had more than 1.7 down/ 400 up. In Minneapolis I know there's 4g service as I have had speeds as high as 11 down / 2 up and average 8 down 1.5 up. All 3 of those statements are confirmed using Dark Knight build 8 as I have a 3g icon here at home and a 4g icon when I am in Minneapolis. The whole drive to Minneapolis showed '4g' on my wife's Sensation 4G. No, I am completely positive there's no 3g icon in the stock rom for any newer T-Mo 4g phone. If there is a 3g icon on any 4g t-mo phone (using T-Mo service), by all means educate me.
There obviously is a 3G icon as in the screenshot i posted. This rarely happens in the specific area I am in a lot (Gym) but my phone is totally stock and always shows 4G everywhere else. Let the screenshot educate you...
myorks1127 said:
There obviously is a 3G icon as in the screenshot i posted. This rarely happens in the specific area I am in a lot (Gym) but my phone is totally stock and always shows 4G everywhere else. Let the screenshot educate you...
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Are you using a T-Mo sim with T-Mo service?
Yes T-Mobile everything, everything stock never rooted yet. BTW I went to st.cloud state for my first year of college, small world