Guys,
Just an FYI, I am getting very slow LTE speeds on my SM-G925F Vs. SM-G925A, in fact I am not convinced I am getting LTE at all, as LTE discovery doesn't work properly on the International version, but does work on the AT&T version. I am getting LTE N/A on the 925F and on the 925A it shows Band 17 for LTE. I have the 4G indicator on the International version, and 4G LTE on the AT&T version. Any idea why LTE DIscovery doesn't work on the 925F? I was under the impression the 925F had all the bands the AT&T version does and just added extra.
Just saw this post. Can you try calling AT&T and see if your IMEI is part of the AT&T network.. according to this post its what they did and got it to work.. same situation initially.. slow speeds at first.
s-one said:
Just saw this post. Can you try calling AT&T and see if your IMEI is part of the AT&T network.. according to this post its what they did and got it to work.. same situation initially.. slow speeds at first.
Click to expand...
Click to collapse
I have an AT&T Galaxy S6 Edge provisioned on the line I am testing the 925F on, so that isn't the problem. It is something to do with the radio firmware on the 925F, even if someone thinks they are getting LTE, they probably are only partially getting it. I can post some LTE discovery and cell signal screenshots in the morning to illustrate the differences as I have the 2 phone sitting side by side. See this post for more info in the mean time.
http://forum.xda-developers.com/showpost.php?p=60207909&postcount=8
OK thanks for sharing the info with us.
s-one said:
OK thanks for sharing the info with us.
Click to expand...
Click to collapse
I update the other post with screen shots. I will post them here as well.
Here are the screen shots, the 925F seems to be picking up LTE this morning down on my first floor where my PC is. There is definitely something screwy with the radio though on it. See below.
SM-G925F
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SM-G925A
y2jdmbfan said:
Guys,
Just an FYI, I am getting very slow LTE speeds on my SM-G925F Vs. SM-G925A, in fact I am not convinced I am getting LTE at all, as LTE discovery doesn't work properly on the International version, but does work on the AT&T version. I am getting LTE N/A on the 925F and on the 925A it shows Band 17 for LTE. I have the 4G indicator on the International version, and 4G LTE on the AT&T version. Any idea why LTE DIscovery doesn't work on the 925F? I was under the impression the 925F had all the bands the AT&T version does and just added extra.
Click to expand...
Click to collapse
I was going to buy an emerald green one from one of the retailers in Germany or the UK but now that I see there are issues I will just wait.
atuarre said:
I was going to buy an emerald green one from one of the retailers in Germany or the UK but now that I see there are issues I will just wait.
Click to expand...
Click to collapse
A couple of thoughts...
1. The International version doesn't do Carrier aggregation, which AT&T is using now, you can see that in the pictures above.
2. The radio on the 925F is not tuned to US frequency networks very well.
3. You lose HD Voice and VoLTE on the International version.
Now I was content to lose #3, not a real big deal on either of those from me, but 1 and 2 kind of make it a deal breaker for me and I don't want to wait and HOPE Samsung fixes it in a software update.
were you able to fix this issue? Same here with 925F on t-Mobile
anyone resolved this? I'm on cricket and im always on H+ and rarely ever see the 4G symbol come on. however, the internet isn't slow either, about 6-8Mbps down.
I had a G925I and had all these issues. Switched to SM-G9250 which is the Chinese/Hong Kong variant and I use it on at&t. There's no LTE or speed issues. I did head to head testing with iphone 6 on at&t and my 9250 pulls faster speeds. Worth noting that 9250 has the most comprehensive network bands support of all S6 and S6 edge variants.
I also put this in another thread, but I have similar issues with my 925F on T-Mobile. Anyone know if I would bork the device trying to flash the T-Mobile modem on a 925F? Up for giving it a shot if I can be reasonably sure that I will not destroy my new phone. I installed the latest baseband and modem for the 925F from here:
http://forum.xda-developers.com/showpost.php?p=60112855
I could try the files for the 925T from that same thread and see what happens....
Related
I just rooted and unlocked mine via instructions here. I am getting an "E" icon, does that mean edge? How do I get 3G to work like people are claiming. I am outside of Orlando with a VERY reliable 3G connection normally.
It won't give you 3g on att lol. Tmobile uses different bands and vibrant does not support att 3g bands, just edge. You should have gotten the captivate, which is made to work on att 3g. It's just a given, almost every phone is like that. You can take most att phones, unlock them to work on Tmobile, but will only get edge, same thing with Tmobile phones. Can't be done...
Sent from my SGH-T959 using XDA App
afive720 said:
It won't give you 3g on att lol. Tmobile uses different bands and vibrant does not support att 3g bands, just edge. You should have gotten the captivate, which is made to work on att 3g. It's just a given, almost every phone is like that. You can take most att phones, unlock them to work on Tmobile, but will only get edge, same thing with Tmobile phones. Can't be done...
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Apparently it supports AT&T 3G bands
Source:
http://www.engadget.com/2010/08/22/confirmed-galaxy-s-unlock-codes-are-stored-in-your-phone-vibra/
Now the question is if the vibrant has both 850mhz and 1900mhz 3g bands.
I was wondering a similar thing. I saw that T-mobile roams on AT&T's networks a lot during a recent road trip, so do you think you can get 3g data speeds over those networks without the need for an ATT sim card?
Just debating whether or not to try to unlock it.
This is really odd - have not seen a device do this before but Engadget generally doesn't lie.
So basically it works on AT&T's 1900mhz based 3G network. In a lot of areas, it could actually work with an ATT SIM once unlocked.
I'm going to give this a try a bit later and will report back how it goes in my area. I know AT&T has both 850 and 1900 based 3G here.
I just took the fam out for icecream and picked up a 3G signal, but back at home on Edge...bah...
Yeah, their 1900mhz isn't as abundant as their 850mhz signal.
The best 'half-band' solutions typically involve a device that supports 850mhz but not 1900mhz, like the HD2 T9193 or HD T8285 both of which get 3G in *many* AT&T areas
Hi peeps,
My research on various forums so far suggests to me that there seems to be contradicting reports whether or not the Vibrant works on AT&T 3G.
I'm planning on importing this phone and use it with an HSPA 850 MHz network in my country, but I'm still skeptical about reception capability of this particular phone. Some reports indicated that the phone works with HSPA 850 while others confirmed that it only works with 1900 MHz band on AT&T.
Therefore, can anybody please confirm if this phone, once unlocked, actually works with HSPA 850. Thanks in advance for any help you might offer.
Sent from my GT-I9000 using XDA App
The phone definitely does not work with 850MHz.
I have a 850-only phone (HD T8285) as well as this Vibrant (1900 only) in front of me.
I just tested an AT&T SIM in both.
The T8285 gets excellent reception here, around 81dbm.
The vibrant on the other hand gets very spotty reception, ranging from 97dbm to around 110.
If the vibrant worked on 850, it would be getting similar reception. Instead it drops to EDGE a lot when using it on AT&T.
Edit: If I go outside, I can get decent 3g and good speeds:
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Still, very clearly 1900 due to spotty signal indoors
This is however quite a nice surprise - it opens the opportunity to use it on AT&T's network in places where 1900 3G is solid.
So it does not support 850? Secondly how do I know if I am in 850 or 1900 area?
larry996 said:
So it does not support 850? Secondly how do I know if I am in 850 or 1900 area?
Click to expand...
Click to collapse
Most areas are going to have both if anything, so the main thing you're going to want to know is if 1900 is strong enough where you are.
Unfortunately I dont know a truly reliable way to check a specific area for whether thats the case, besides actually trying a 1900 only phone
gsvnet said:
Most areas are going to have both if anything, so the main thing you're going to want to know is if 1900 is strong enough where you are.
Unfortunately I dont know a truly reliable way to check a specific area for whether thats the case, besides actually trying a 1900 only phone
Click to expand...
Click to collapse
Not true, AT&T is working on moving their entire 3G network to the 850mhz band... Here in New York City they're exclusively 850mhz unless I'm mistaken.
DevPhone1337 said:
Not true, AT&T is working on moving their entire 3G network to the 850mhz band... Here in New York City they're exclusively 850mhz unless I'm mistaken.
Click to expand...
Click to collapse
I heard that same thing. So if the Vibrant "only" does 1900.... those in 850 are SOL!
Anyone know how old this map is....?????
http://www.cellularmaps.com/att_850_1900.shtml
DevPhone1337 said:
Not true, AT&T is working on moving their entire 3G network to the 850mhz band... Here in New York City they're exclusively 850mhz unless I'm mistaken.
Click to expand...
Click to collapse
They've simply re-allocated much of the 3G network to the 850Mhz band, but based on my testing (with a vibrant), they have not totally gotten rid of 1900 3G - it still exists.
The problem with that map is it doesn't differentiate between 2G and 3G.
I have an att sim and I can get 3g on my unlocked vibrant. You can get into the debug screen and clearly see wcdma 850 listed and it is unchecked by default. Only 1900 and AWS bands are enabled. Since we have 1900 att 3g here it works fine. I just haven't had nerve to enable the 850 in the screen to test it. But I have read reports that enabling 850 does absolutely nothing anyway since the hardware does not support that band.
afive720 said:
It won't give you 3g on att lol. Tmobile uses different bands and vibrant does not support att 3g bands, just edge. You should have gotten the captivate, which is made to work on att 3g. It's just a given, almost every phone is like that. You can take most att phones, unlock them to work on Tmobile, but will only get edge, same thing with Tmobile phones. Can't be done...
Sent from my SGH-T959 using XDA App
Click to expand...
Click to collapse
Its confirmed that it gets att 3g: http://www.engadget.com/2010/08/22/confirmed-galaxy-s-unlock-codes-are-stored-in-your-phone-vibra/ My recommendation is to mess around with it.
Sent from my SGH-T959 using XDA App
could someone confirm the 850mhz reception?
To what ive seen the vibrant comes with both 850/1900 bajds making it more then compatable with ATT 3G
I've been searching high and low for a phone that will work on both T-mobile and AT&T. The Galaxy Nexus was going to be my choice, but it has way too many problems (screen being the biggest issue).
I found this version of the Razr Maxx which says that it has bands for both AT&T and T-Mobile. My question to you guys is this: If I buy this phone, will I be able to use it and get full 3G (HSPA+) speeds on either carrier?
http://www.clove.co.uk/motorola-razr-maxx
Thanks!
After doing some more research, it seems that the phone has to have 1700/2100 bands in order to work on T-Mobile.
The phone has 2100 band. Does this mean that T-Mobile 3G HSPA will work only when the area has that band, or not at all?
That model runs on :
GSM/GPRS Yes
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Frequencies850/900/1800/1900 MHz
and/or
3G/HSPA Yes
Frequencies2100/1900/900/850 Mhz
So YES, that model WILL WORK on ATT/TMO. Both companies have roaming agreements with each other and other companies which would allow your device to work if and when you are within a coverage area. NOT ALL features may work in certain areas AND data may be a certain speed in 1 area and in another it may be MUCH MUCH SLOWER due to the fact that it is using your 2G/GSM bands because there is no 3G/HSPA aka HSPA+ aka 4G (aka by ATT and/or TMO). This particular model CANNOT AND WILL NOT ever get true 4G/LTE.
Hope this helps...
Thanks for the answer. After doing a lot of research, I've learned that it WILL work for AT&T 3G/"4G" speeds, and will NOT work for T-Mobile 3G/"4G" speeds.
Reason being is that even though it has the 2100 band, it doesn't have the 1700 band, which T-Mobile requires for full HSPA speed. It uses one for uplink and the other for downlink. So even though it has one of the bands, I'll never be able to get full speed 3G on it.
ajm786 said:
Thanks for the answer. After doing a lot of research, I've learned that it WILL work for AT&T 3G/"4G" speeds, and will NOT work for T-Mobile 3G/"4G" speeds.
Reason being is that even though it has the 2100 band, it doesn't have the 1700 band, which T-Mobile requires for full HSPA speed. It uses one for uplink and the other for downlink. So even though it has one of the bands, I'll never be able to get full speed 3G on it.
Click to expand...
Click to collapse
after many years of following this stuff, and as a user of both tmo & att services, i must say you are exactly correct! i vaguely recall reading about a pentaband phone in development that would do 3g on both services, but lost track of whether it ever came to market
edit: turns out pentaband phones exist:
forums.androidcentral.com/android-hardware/170487-pentaband-phones.html
i'm surprised the RAZR wasn't developed as penta...
It's supposed to support Band 4 LTE and H+ with a change in APN settings. Therefore it should work on T-Mobile USA. Can anyone please confirm? A few guys here on Band 4 in Argentina say it works.
Would like to know as well, bump.
It does work. I have straighttalk with the att lte sim card and i was getting LTE speeds on the vendor rom that came with the note 3 pro but then i upgraded to the official global (was afraid vendor rom was infected with malware) and since im using the official global rom all i get is HSPA+. Cant seem to figure out what changed from roms that i cant get lte back. But to confirm yes it does get lte and hspa+
Sent from my Redmi Note 3 using XDA-Developers mobile app
kobe4rings said:
It does work. I have straighttalk with the att lte sim card and i was getting LTE speeds on the vendor rom that came with the note 3 pro but then i upgraded to the official global (was afraid vendor rom was infected with malware) and since im using the official global rom all i get is HSPA+. Cant seem to figure out what changed from roms that i cant get lte back. But to confirm yes it does get lte and hspa+
Sent from my Redmi Note 3 using XDA-Developers mobile app
Click to expand...
Click to collapse
That's great news. May I ask which vendor you bought it from. There are three versions apparently China, Global and India. Global definitely works but some China versions don't. Don't know about India. I bought mine from Gearbest with the Focal Tech vendor rom that I haven't changed but I have no way confirming which version it is though I suspect it's one of the China versions. Is there any way to find out? T-Mobile H+ is plenty fast but it would be nice to have LTE.
Twotems said:
That's great news. May I ask which vendor you bought it from. There are three versions apparently China, Global and India. Global definitely works but some China versions don't. Don't know about India. I bought mine from Gearbest with the Focal Tech vendor rom that I haven't changed but I have no way confirming which version it is though I suspect it's one of the China versions. Is there any way to find out? T-Mobile H+ is plenty fast but it would be nice to have LTE.
Click to expand...
Click to collapse
I bought it from banggood.com, it was i think 25 dollars cheaper than gearbest at the time (3gb ram, 32gb model). I was getting LTE and over 25mbps always but once i flashed the official global rom all i can get is a little over 8mbps. This seems to be a common issue as ive seen it posted various times. (screenshot for speed reference. had more lte speed comparisons but i deleted the app once so i only have the only in the screenshot)
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I'm seriously considering the LG G5 Model RS988 that you can get on Amazon because it's cheaper and easier to get that at AT&T or Best Buy, but will that version work with AT&T LTE Bands? AT&T LTE bands are 2,4,5,12,29, and 30. I see that the RS988 model doesn't have bands 29 and 30. Will that affect AT&T LTE performance? Please let me know. I want to get the phone in the next day or two. Thank you in advance for your help!!!
You can always check the bands that the device supports, though, yes it does.
But is band 29 and 30 critical for LTE on AT&T?
junodragon said:
But is band 29 and 30 critical for LTE on AT&T?
Click to expand...
Click to collapse
No its not just don't change your imei from the phone you have right now
I wasn't going to change anything. I was just going to pop in my nano-sim from my Iphone and it should work automatically right? Or do I need to do anything else?
junodragon said:
I wasn't going to change anything. I was just going to pop in my nano-sim from my Iphone and it should work automatically right? Or do I need to do anything else?
Click to expand...
Click to collapse
Nope. That's the beauty of GSM carriers.
also it has band 17..... which Att uses alot too, which is used lot in southern Michigan where I lived, but I use Cricket wirless which uses the same towers, I ordered my RS model from Amazon about hour ago and will be here tomorrow:good:
2003vstrom said:
also it has band 17..... which Att uses alot too, which is used lot in southern Michigan where I lived, but I use Cricket wirless which uses the same towers, I ordered my RS model from Amazon about hour ago and will be here tomorrow:good:
Click to expand...
Click to collapse
Just received mine off Amazon this morning and confirm after changing the apns my LTE is working awesome! Faster then my 6S was.
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Sent from my RS988 using Tapatalk
No LTE love for me...
I would love my RS988 to get LTE on ATT... I switched from Cricket which has LTE on it, to ATT GoPhone and I only get a max of HSPA+. I can scan for networks and click on ATT LTE but it just fails to register. ATT support said they cannot force it to work because their system shows my IMEI as an unknown manufacturer. ... what?
I already have the same APN settings as listed. I would LOVE some help with that!
I was having issues with my Mk III answering and making calls, I figured I would try a new Sim. They refused saying that AT&T has a approved list of phones they will allow to be used due to the 3G going away. Has anyone heard about thid
Audiguy3 said:
I was having issues with my Mk III answering and making calls, I figured I would try a new Sim. They refused saying that AT&T has a approved list of phones they will allow to be used due to the 3G going away. Has anyone heard about thid
Click to expand...
Click to collapse
Check the AT&T whitelist for your model, if it's listed, it's supported.
First mistake is ever using ATT, go with T-mobile, Verizon, or a reseller like Mint or straight talk.
JDC2389 said:
First mistake is ever using ATT, go with T-mobile, Verizon, or a reseller like Mint or straight talk.
Click to expand...
Click to collapse
AT&T is working fine, seamlessly for my 2 N10+'s; N975U, N975U1. Didn't have to do anything after the switch over. Your device wasn't configured for or running on 4G VoLTE and that's the issue.
Audiguy3 said:
I was having issues with my Mk III answering and making calls, I figured I would try a new Sim. They refused saying that AT&T has a approved list of phones they will allow to be used due to the 3G going away. Has anyone heard about thid
Click to expand...
Click to collapse
Sending you a new SIM would be pointless 'cause your phone is 3G only and AT&T no longer has a 3G network.
It doesn't work well with T-Mobile either. It's using standalone 5G channel combos even though Sony disabled standalone 5G for all US bands. The end result is lots of signal drops because it has long-range NR 71 but lost the medium range LTE band 2 or 66 it needs. It takes it a few minutes to switch to LTE 71 or LTE 12.
I am on VZW and 5G works great. Only once have I seen it change to LTE and that was because of weather. It sound like the ATT person you talked to was assuming you were on a 3G phone, and there not going to give a sim card for a 3G phone. The system is going away.
kevinmcmurtrie said:
It doesn't work well with T-Mobile either. It's using standalone 5G channel combos even though Sony disabled standalone 5G for all US bands. The end result is lots of signal drops because it has long-range NR 71 but lost the medium range LTE band 2 or 66 it needs. It takes it a few minutes to switch to LTE 71 or LTE 12.
Click to expand...
Click to collapse
I wonder if you have a defective phone...or you live in an area where the signal towers are too far away???
I realize that this phone "needs" to have NSA or NSA+SA mode turned on to receive 5G on T-Mobile. However, I have none of the signal issues or drops that you are having. Something is wrong with your device specifically.
jaseman said:
I wonder if you have a defective phone...or you live in an area where the signal towers are too far away???
I realize that this phone "needs" to have NSA or NSA+SA mode turned on to receive 5G on T-Mobile. However, I have none of the signal issues or drops that you are having. Something is wrong with your device specifically.
Click to expand...
Click to collapse
It's as designed:
Sony Xperia 1 III (US) (XQ-BC62) | 4G/5G Bands & Combos
4G & 5G Bands, Carrier Aggregation and Dual Connectivity Combinations for Sony Xperia 1 III (US) (XQ-BC62)
cacombos.com
Sony is using the wrong long-range band for the sake of turning on the 5G indicator. It should be using LTE 66 + LTE 12.
I have a SA 5G phone for comparison and it has a far faster and more stable signal. I bring it when I hike or travel.
kevinmcmurtrie said:
It's as designed:
Sony Xperia 1 III (US) (XQ-BC62) | 4G/5G Bands & Combos
4G & 5G Bands, Carrier Aggregation and Dual Connectivity Combinations for Sony Xperia 1 III (US) (XQ-BC62)
cacombos.com
Sony is using the wrong long-range band for the sake of turning on the 5G indicator. It should be using LTE 66 + LTE 12.
I have a SA 5G phone for comparison and it has a far faster and more stable signal. I bring it when I hike or travel.
Click to expand...
Click to collapse
This Sony model is whitelisted...
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Thanks for the link to the att website that listed the Sony phones as not being affected by the 3G closure. I went back in and they acknowledged that the phone was OK but could not get the new Sim card to work on their tablet . I got them to call AT&T tech support and though he had trouble initially got it activated. The new Sim seems faster and so far has not stopped working. The old Sim card if I remember was from my previous phone a Experia 1 Mk II. My MK III is from Best Buy (unlocked} and not a international model.
Yes I know this phone does not work with most of AT&T 5G network. Their 4G is pretty fast and with my travel in the past I have loved their network throughout the country.
Audiguy3 said:
Thanks for the link to the att website that listed the Sony phones as not being affected by the 3G closure. I went back in and they acknowledged that the phone was OK but could not get the new Sim card to work on their tablet . I got them to call AT&T tech support and though he had trouble initially got it activated. The new Sim seems faster and so far has not stopped working. The old Sim card if I remember was from my previous phone a Experia 1 Mk II. My MK III is from Best Buy (unlocked} and not a international model.
Yes I know this phone does not work with most of AT&T 5G network. Their 4G is pretty fast and with my travel in the past I have loved their network throughout the country.
Click to expand...
Click to collapse
You're welcome.
I don't have a 5G model either. I deliberately got the 4G for better battery life... 4G is fast enough today.
lewmur said:
Sending you a new SIM would be pointless 'cause your phone is 3G only and AT&T no longer has a 3G network.
Click to expand...
Click to collapse
Wtf you're talking about?! 1 III is a 3G only phone? you're just kidding, right?! I hope so!
LaceeWearsPrada said:
Wtf you're talking about?! 1 III is a 3G only phone? you're just kidding, right?! I hope so!
Click to expand...
Click to collapse
Sorry. I replied to the wrong post. If your phone isn't in the list of phones you'll find in post #2, then they won't send a new SIM. And I don't know what model "1 III" refers to, so I can't check it.
lewmur said:
Sorry. I replied to the wrong post. If your phone isn't in the list of phones you'll find in post #2, then they won't send a new SIM. And I don't know what model "1 III" refers to, so I can't check it.
Click to expand...
Click to collapse
You're in the forum of that model why are you even here when you have no idea what's Xperia 1 III?!