Related
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.
I have the tmobile samsung galaxy 4g. Unfortunately it doesn´t come with the 850 Mhz band enabled for 3g data. I read in galaxy s post that it is possible to flash the modem to another one who has this band included. Is it possible in the galaxy s 4g?
Thanks.
drojasz said:
I have the tmobile samsung galaxy 4g. Unfortunately it doesn´t come with the 850 Mhz band enabled for 3g data. I read in galaxy s post that it is possible to flash the modem to another one who has this band included. Is it possible in the galaxy s 4g?
Thanks.
Click to expand...
Click to collapse
if that is in fact possible, which I've heard otherwise, that'd be splendid.
Sent from my SGH-T959V using XDA Premium App
Modem 850 Mhz
Really exist any fhash for activate 850 Mhz for samsung Galaxy S 4G?????????.
Where are there link for download???????!!!!!!!!
Are you positive it cannot connect to 3g? Unless the phone is lying to me I've seen it connected to UTMS networks under phone status and even show 3g for the data connection in the status bar.
Yep, shows umts but downloads @4G speeds.
Somairotevoli said:
Yep, shows umts but downloads @4G speeds.
Click to expand...
Click to collapse
17?! holy crap!
danstheman7 said:
17?! holy crap!
Click to expand...
Click to collapse
That's inside I get 20+ outside.
Sent from my SGH-T959V using Tapatalk
850MHz UMTS on Vibrant 4G
I have both the Vibrant 4G and the older Vibrant from T-Mobile.
Using the instructions found here: androidforums.com/samsung-galaxy-s/258859-how-enable-850mhz-3g-network-frequency-your-samsung-i9000-galaxy-s.html[/url]
I see that I can enable 850MHz on the older Vibrant but I don't see the 850MHz option on the Vibrant 4G. I have not yet tested the Vibrant to see if I get better AT&T data coverage (ie: 850MHz when 1900MHz is not available.)
Somairotevoli said:
That's inside I get 20+ outside.
Sent from my SGH-T959V using Tapatalk
Click to expand...
Click to collapse
Hah, you live in a 42mbps theoretical area dont you?
drojasz said:
I have the tmobile samsung galaxy 4g. Unfortunately it doesn´t come with the 850 Mhz band enabled for 3g data. I read in galaxy s post that it is possible to flash the modem to another one who has this band included. Is it possible in the galaxy s 4g?
Thanks.
Click to expand...
Click to collapse
I believe this is true for the Galaxy S i9000 which has support for 3G network over the 850mz band. Our phone, the Galaxy S 4g does not.
It is possible to flash a modem for 3G @ 850mz band for i9000, but not for the sgs4g.
The main reason being that the i9000 is an international phone so it has to support a lot of carriers and different bands/networks around the globe. But the SGS4G was made for T-Mobile's network, so the bands that it supports are limited to that carrier.
---------- Post added at 08:22 AM ---------- Previous post was at 08:19 AM ----------
Somairotevoli said:
Yep, shows umts but downloads @4G speeds.
Click to expand...
Click to collapse
what font is that *.*
Sorry for revive this post , just to clarify... If enable the UTMS1900Mhz band I'll be able to usa 4G with a company that provide it via HSPA+ on this band?
thanks in advance
anyone here???
I'm looking to get an unlocked HTC One X (AT&T) to use overseas where the 3G band is 2100. I read in the Engadget review that AWS is disabled out of the box?
What is AWS exactly? And does it affect the 2100 3G band that I need?
EDIT: So my exact question is, can I use an unlocked ATT HOX to get at least a 3G data connection where the band required is ONLY 2100 (read: NOT 1700/2100 like T-Mobile)? Like the UK and Taiwan as in this chart.
It'd be kinda ironic if it didn't work in Taiwan lol
AWS is a band of 3/4g used by T-Mobile, and other carriers. at&t does not use this band, nor does rogers. But most foreign carriers do.
From my understanding once we have s-off you can change this to use that band.
Sent from my HTC One X using Tapatalk 2
kleeman7 said:
AWS is a band of 3/4g used by T-Mobile, and other carriers. at&t does not use this band, nor does rogers. But most foreign carriers do.
From my understanding once we have s-off you can change this to use that band.
Sent from my HTC One X using Tapatalk 2
Click to expand...
Click to collapse
Thanks for the info. Do you know which bands specifically are AWS? And does this mean unlocking the phone doesn't give me access to them? You wouldn't per chance know the thread that talks about the unlock for AWS would you? I can't seem to find it...
So it seems that AWS is synonymous with W-CDMA 1700 (UMTS Band IV)? And/or from 1710 to 1755 MHz for uplink, and from 2110 to 2155 MHz for downlink?
I got that from Wikipedia. So it would appear that if I need the 2100 band internationally, I'd be okay using an unlocked AT&T HTC One X. Can anybody verify this?
Sorry, I'm not too knowledgeable about what AWS is exactly... Except that T-Mobile USA uses the 1700 band and that's part of it which is why the ATT HOX doesn't get T-Mobile USA 3G.
You will get signal internationally, but it may not be 3g is all. But the 2100 band is at&t capable.
Sent from my HTC One X using Tapatalk 2
kleeman7 said:
You will get signal internationally, but it may not be 3g is all. But the 2100 band is at&t capable.
Sent from my HTC One X using Tapatalk 2
Click to expand...
Click to collapse
Yeah, I'm not doubting the ability to get signal for talk/text, I want to try to get at least 3G. What's a smartphone without mobile data, right?
In any case, I just tried looking it up and it seems that AT&T uses 850 and 1900?
So it would appear that AWS generally refers to the pairing of 1700/2100. Does that mean AWS is ONLY the band pair and does NOT refer to using only 2100?
Even in UMTS 2100, upload will be in 19xx range. I'm sure HOX will work in 2100 UMTS band.
funnce said:
So it would appear that AWS generally refers to the pairing of 1700/2100. Does that mean AWS is ONLY the band pair and does NOT refer to using only 2100?
Click to expand...
Click to collapse
Correct, AWS just refers to the split band (1700/2100) only, where one band is used for download, the other for upload (can never remember which is which). AWS is also known as Band IV. Its not to be confused with the 2100 MHz band (Band I) used in Europe and many other parts of the world for 3G.
http://en.wikipedia.org/wiki/UMTS_frequency_bands#UMTS-FDD
The phone should work fine while traveling, including 3G. But I will try to confirm next week, as I am traveling to Europe. This will be my first trip abroad with the One X. I'll be roaming on AT&T; instead of SIM unlocked and running a local SIM. But roaming on AT&T works pretty similar, using the local carriers (the only real difference is in the billing). So I can at least confirm that part works.
IN the past I've traveled internationally with several AT&T phones with the 2100 MHz band, so I don't expect any problems.
---------- Post added at 09:19 AM ---------- Previous post was at 09:14 AM ----------
kleeman7 said:
AWS is a band of 3/4g used by T-Mobile, and other carriers. at&t does not use this band, nor does rogers. But most foreign carriers do.
From my understanding once we have s-off you can change this to use that band.
Click to expand...
Click to collapse
The part about most foreign carriers using AWS is false, as I noted above. AWS is pretty much an anomaly, only used by T-Mobile, and carriers in Canada and Venezuela. You are confusing Band I with Band IV.
Just want to make sure that this is clear, for anyone else reading this thread, to avoid misunderstanding.
Also, the part about enabling AWS once we have S-Off is just speculation. I would not take if for granted. Mostly just wishful thinking by those on T-Mobile. I would not take it as fact.
Thanks for the answers! Do let me know how 3G works on your trip though
I messaged HTC and this is an excerpt from the reply they sent me:
To put it very simply, the AT&T One X uses a cellular radio that does not have or use the 2100 frequency. With this being the case, the situation is actually a hardware limitation, not a lack of software or a software disablement of a hardware functionality. This, of course, means that you wouldn't get 3G in Taiwan with an unlocked AT&T One X. You can still get 2G/EDGE with the proper data network settings though. I can definitely appreciate the irony of the situation though, our phones are manufactured in Taiwan after all!
That being said, I messaged them back and asked why 2100 was listed as supported on their official site.
Reply:
Considering that AWS is listed as an LTE technology in those specifications when it's not an LTE tech tells me that the specifications are listed incorrectly. I've gone ahead and forwarded this for review and correction though. Even if the specifications are correct, because the device is configured for AT&T's 3G network, which uses the 850 and 1900 frequencies, it's still very likely that you still would not get 3G service.
So, the rep doesn't know is all I'm getting from this email. "Very likely" doesn't sound definitive to me.
I can confirm that at&t hox is working fine in umts aka 3g mode in 2100Mhz. Just today i received one, sim unlocked it and tested
Sent from my GT-I9300 using Tapatalk 2
redpoint73 said:
The phone should work fine while traveling, including 3G. But I will try to confirm next week, as I am traveling to Europe. This will be my first trip abroad with the One X. I'll be roaming on AT&T; instead of SIM unlocked and running a local SIM. But roaming on AT&T works pretty similar, using the local carriers (the only real difference is in the billing). So I can at least confirm that part works.
IN the past I've traveled internationally with several AT&T phones with the 2100 MHz band, so I don't expect any problems.
Click to expand...
Click to collapse
Sorry for the late update. But I can verify that 3G on the AT&T version of the One X works just fine in Germany, which uses 2100 MHz for 3G.
I didn't use data a whole lot, but a little browsing, Google Maps, etc., all of which seemed speedy. I also ran Speedtest while in Germany, and got 5.5 Mbps down, 1.3 Mbps up, which I think is safe to say 3G and not EDGE. Also had the "4G" icon in the notification bar, since our phone displays that for HSPA.
---------- Post added at 02:08 PM ---------- Previous post was at 02:06 PM ----------
funnce said:
I messaged HTC and this is an excerpt from the reply they sent me:
To put it very simply, the AT&T One X uses a cellular radio that does not have or use the 2100 frequency. With this being the case, the situation is actually a hardware limitation, not a lack of software or a software disablement of a hardware functionality. This, of course, means that you wouldn't get 3G in Taiwan with an unlocked AT&T One X. You can still get 2G/EDGE with the proper data network settings though. I can definitely appreciate the irony of the situation though, our phones are manufactured in Taiwan after all!
Click to expand...
Click to collapse
That rep is clearly clueless, as what I mentioned above proves he is incorrect.
redpoint73 said:
Sorry for the late update. But I can verify that 3G on the AT&T version of the One X works just fine in Germany, which uses 2100 MHz for 3G.
I didn't use data a whole lot, but a little browsing, Google Maps, etc., all of which seemed speedy. I also ran Speedtest while in Germany, and got 5.5 Mbps down, 1.3 Mbps up, which I think is safe to say 3G and not EDGE. Also had the "4G" icon in the notification bar, since our phone displays that for HSPA.
---------- Post added at 02:08 PM ---------- Previous post was at 02:06 PM ----------
That rep is clearly clueless, as what I mentioned above proves he is incorrect.
Click to expand...
Click to collapse
I am in China, and it's the same 2100 MHz for 3G, I can sometimes connect to the HSPA but it's not stable and keep have notification 'Restricted Access Changed. Data Service is blocked'. Although I can use internet browser and some apps like Google Map. But some apps keep prompted ' network unavailable' like Weibo, I found the problematic apps are clients of news website. I wonder if they use some protocol which is not support or blocked?
Great
redpoint73 said:
Sorry for the late update. But I can verify that 3G on the AT&T version of the One X works just fine in Germany, which uses 2100 MHz for 3G.
I didn't use data a whole lot, but a little browsing, Google Maps, etc., all of which seemed speedy. I also ran Speedtest while in Germany, and got 5.5 Mbps down, 1.3 Mbps up, which I think is safe to say 3G and not EDGE. Also had the "4G" icon in the notification bar, since our phone displays that for HSPA.
---------- Post added at 02:08 PM ---------- Previous post was at 02:06 PM ----------
That rep is clearly clueless, as what I mentioned above proves he is incorrect.
Click to expand...
Click to collapse
This is great news for me. I will receive an HOX at&t and I'm in Europe so is great that the 3g is working here.
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.
Click to expand...
Click to collapse
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
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.
Click to expand...
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
Click to expand...
Click to collapse
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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Actually it does have a 3G icon smart guy
I never seen a 3g icon and I live in a 3g area. Smartguy
Sent from my SGH-T769 using xda premium
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
Sent from my SGH-T769 using xda premium
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
Sent from my SGH-T769 using xda premium
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.
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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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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
are there any roms out there that support 900mhz HSDPA?
I tried flashing the 02 modem but no luck, currently on the viper rom but it doesnt seem like there support on this either
Frequency support is hardware based. If the 900 Mhz HSPA frequency is not supported in hardware (which it should not be, since its not in the phone's specs), it can't be added by flashing any amount of software radios, ROMs etc.
actually while you are correct, but normally if 850 mhz is supported the hardware will support 900 in my experience. In fact I managed to get 900mhz, working on my at&t skyrocket so it got me thinking that it might be possible on this phone as well
Doubt it. It's entirely hardware related. Software can't change this at all.
Proxyep said:
actually while you are correct, but normally if 850 mhz is supported the hardware will support 900 in my experience. In fact I managed to get 900mhz, working on my at&t skyrocket so it got me thinking that it might be possible on this phone as well
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The Skyrocket and HOX do support 850/900/1800/1900 on the 2G network, but they only support 850/1800/1900 on the 3G side. Why they do this is beyond me.
That said, I've never personally seen a provider who only has 3G on the 900mhz band. While traveling in Germany, I knew that Vodafone and T-Mobile (DE) had 3G on the 900mhz band, but they also run it on 1800mhz. If I were to wager a hypothesis, they are operating their 2G network on 900 and their 3G network on 1800, much in the same way that AT&T operates its 2G network on 850 (in some areas) and its 3G network on 1900.
Unless your provider is only operating on the 900mhz band, it shouldn't matter.
rbrugman said:
The Skyrocket and HOX do support 850/900/1800/1900 on the 2G network, but they only support 850/1800/1900 on the 3G side. Why they do this is beyond me.
That said, I've never personally seen a provider who only has 3G on the 900mhz band. While traveling in Germany, I knew that Vodafone and T-Mobile (DE) had 3G on the 900mhz band, but they also run it on 1800mhz. If I were to wager a hypothesis, they are operating their 2G network on 900 and their 3G network on 1800, much in the same way that AT&T operates its 2G network on 850 (in some areas) and its 3G network on 1900.
Unless your provider is only operating on the 900mhz band, it shouldn't matter.
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well I have 2100 as well but the point is I am wondering if there is any roms that support the 900mhz band. Doesn't 02 use 900mhz 3G?
Besides on the official website it says this! (Asia/AUS: 850/900/1900/2100 MHz)
IS the hardware on the AT&T one X the same as the one on the one XL?
Proxyep said:
Besides on the official website it says this! (Asia/AUS: 850/900/1900/2100 MHz)
IS the hardware on the AT&T one X the same as the one on the one XL?
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Its not clear to me what version of the phone you own, and are talking about. You mention that you have an AT&T Skyrocket, but you also have Vodaphone logo by your avatar, location is stated as New Zealand, and mention O2.
If you are talking about the AT&T One X, then no, the 900 MHz band is not listed in the specs for 3G compatibility: http://www.att.com/shop/wireless/devices/htc/one-x-gray.html
Proxyep said:
are there any roms out there that support 900mhz HSDPA?
I tried flashing the 02 modem but no luck, currently on the viper rom but it doesnt seem like there support on this either
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Seems like on another thread someone got 3G....No idea how, but they did.
Sent from my HTC One XL using xda premium
redpoint73 said:
Its not clear to me what version of the phone you own, and are talking about. You mention that you have an AT&T Skyrocket, but you also have Vodaphone logo by your avatar, location is stated as New Zealand, and mention O2.
If you are talking about the AT&T One X, then no, the 900 MHz band is not listed in the specs for 3G compatibility: http://www.att.com/shop/wireless/devices/htc/one-x-gray.html
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I had the Skyrocket, not the OP. I was just comparing frequency specs.
---------- Post added at 10:51 AM ---------- Previous post was at 10:48 AM ----------
Proxyep said:
well I have 2100 as well but the point is I am wondering if there is any roms that support the 900mhz band. Doesn't 02 use 900mhz 3G?
Besides on the official website it says this! (Asia/AUS: 850/900/1900/2100 MHz)
IS the hardware on the AT&T one X the same as the one on the one XL?
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Sorry, I didn't realize you had an Australian One X(L). According to the official specs, it should support 3G on the 900 mhz band. The rom you use won't make a difference. If the One X REALLY supports 3G on the 900mhz band, it should work with whatever rom/radio combo you choose. That said, there is a possibility that it is a typo on HTC's part, and that it doesn't actually support 3G on that band.
rbrugman said:
I had the Skyrocket, not the OP. I was just comparing frequency specs.
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Actually, if you read post #3 the OP mentions he has an AT&T Skyrocket also.
rbrugman said:
Sorry, I didn't realize you had an Australian One X(L). According to the official specs, it should support 3G on the 900 mhz band. The rom you use won't make a difference. If the One X REALLY supports 3G on the 900mhz band, it should work with whatever rom/radio combo you choose. That said, there is a possibility that it is a typo on HTC's part, and that it doesn't actually support 3G on that band.
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Its really not clear what the OP has, and what the specs are. Maybe purchsed from Vodaphone in New Zealand from the logos by his avatar? Or he could have bought the phone from a 3rd party source? In any case, he seems to be pulling specs from a generic source like the HTC website, since it indicates "Asia/Aus". Its best if he got the specs from the carrier (if its a carrier purchased phone) to make sure the specs match up with the exact version you have. Even so, typos and incorrect listing have been known to happen, as mentioned.
If the band really is listed in the specs, it should be supported in software, and no changes should be needed. Is the correct APN entered?
If settings are all correct, and data is still not working, it suggests the hardware does not in fact support the band.
---------- Post added at 11:31 AM ---------- Previous post was at 11:23 AM ----------
Proxyep said:
actually while you are correct, but normally if 850 mhz is supported the hardware will support 900 in my experience. In fact I managed to get 900mhz, working on my at&t skyrocket so it got me thinking that it might be possible on this phone as well
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Click to collapse
Some AT&T phones, including the Skyrocket, Galaxy Note, and others have been known to have some bands "hidden" - supported in hardware, but not in software. I know people have gotten the AWS band working on these phones by flashing different radios.
This has not been found to be the case with the One X, so far.
redpoint73 said:
Some AT&T phones, including the Skyrocket, Galaxy Note, and others have been known to have some bands "hidden" - supported in hardware, but not in software. I know people have gotten the AWS band working on these phones by flashing different radios.
This has not been found to be the case with the One X, so far.
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yeah I guess you are right, there are instances where it momentarily connects to 900mhz but then drops to something else. It is a AT&T htc one X that I acquired cheaply btw.
i'll probably be selling it off, a severe lack of microSD card slot is honestly a real dealbreaker