hi, i am using a DOCOMO NTT SO-O2D with a UK ROM on AT&T.
I am getting crappy cell phone service and dropped calls.
Is it because AT&T doesn't like any phones that's not in their system?
I never had this problem using another phone.
But it's getting to a point where it's annoying.
My internet is okay since i checked the APN and it's what everyone else has.
does the APN have any effect on dropped calls?
Can someone verify their APN settings on S0-O2D.
I've got an SO-02D on AT&T and got my apn settings here:
http://forum.xda-developers.com/showpost.php?p=13206058&postcount=110
I don't have an issue with dropped calls but AT&T uses 850 and 1900 for 3G and this device only supports the 850 3G band.
augie7107 said:
I've got an SO-02D on AT&T and got my apn settings here:
http://forum.xda-developers.com/showpost.php?p=13206058&postcount=110
I don't have an issue with dropped calls but AT&T uses 850 and 1900 for 3G and this device only supports the 850 3G band.
Click to expand...
Click to collapse
So is the LT26I doesn't have the 1900 3G band either?
I thought both devices are technically the same.
except DOCOMO cripples some parts such as NFC through firmware or something?
LT26i does have the 1900 band. No nfc on this device and the 3G bands are different. SE markings and software as opposed to Sony on LT26i. These are the major differences . LT26i has bands 1,2,5,6 and SO-02D has bands 1,5,6,9,19.
The 2 band is 1900.
Sent from my SO-02D using xda premium
Related
I've seen this blog.
http://blog.clove.co.uk/2011/04/12/samsung-galaxy-s-ii-umts-frequencies/
However, with our experience in the industry we have seen that almost every device launched in recent years within Europe has been ‘optimised’, with the American 850/1900 range locked down, leaving only 900/2100 for the rest of the world. As we are based in the UK it is for this reason we have taken the tentative step of advertising only these frequencies.
Click to expand...
Click to collapse
yeah, UK clove store said EU galaxy S2 doesn't support US 850/1900
network. (They said that may be US 850/1900 UMTS frequencies are locked.)
But, I find google news.
http://www.mydaily-gadget.com/news/5718-att-getting-samsung-galaxy-s2-gt-i9100-fcc-says-i-do
Speaking about release dates we do not have a specific one for the GT-i9100 in the USA but we can confirm the FFC has authorized the use of this particular smart phone on the 850MHz and 1900MHz GSM frequencies which means the first carrier to offer the Samsung Galaxy S II might be AT&T. These two frequencies account for the AT&T 3G network but they also match some Canada operator’s frequencies so there is a big chance the Galaxy S II will land there too in the near future.
Click to expand...
Click to collapse
Follow this news, EU galaxy S2 using US GSM 850/1900 networks.
Who is say that TRUE?
i'm very confused.
Quad band GSM 850/900/1800/1900
Source: http://www.samsung.com/global/microsite/galaxys2/html/specification.html
It should work.
apwhitelaw said:
Quad band GSM 850/900/1800/1900
Source: http://www.samsung.com/global/microsite/galaxys2/html/specification.html
It should work.
Click to expand...
Click to collapse
So, only using ATT GSM network?
ATT UMTS network can't use?
Pulverizer said:
I've seen this blog.
http://blog.clove.co.uk/2011/04/12/samsung-galaxy-s-ii-umts-frequencies/
yeah, UK clove store said EU galaxy S2 doesn't support US 850/1900
network. (They said that may be US 850/1900 UMTS frequencies are locked.)
But, I find google news.
http://www.mydaily-gadget.com/news/5718-att-getting-samsung-galaxy-s2-gt-i9100-fcc-says-i-do
Follow this news, EU galaxy S2 using US GSM 850/1900 networks.
Who is say that TRUE?
i'm very confused.
Click to expand...
Click to collapse
That first link (that I provided earlier tonight I think) - read it to the end please, Clove has all the info on that page, just finish reading it. sorry for the tone , but I think you did not pay enough attention - there are comments to that blog post that say clove confirmed with the manufacturer and local distributor that all 4 bands are present.
I'm confused here
I have SGSII ordered from Clove. I plan to use it with ATT sim card. Have I made a mistake? Will I be able to use it? Do I need to cancel?
I hope it works well with AT&T since I intend to get this phone.
My current (imported) GT-i9000 did not properly support AT&T and has very poor call quality and call drop issues.
Sent from my Xoom using XDA Premium App
Although Clove originally said they doubted it would support 850/1900 3G+, they did later confirm their stock would be quad-band 3G. So no need to worry about support for NAM 3G.
Once someone get's the GS2 in USA on ATT, can you confirm that it indeed works on Edge AND 3G?
kurtkbee said:
I hope it works well with AT&T since I intend to get this phone.
My current (imported) GT-i9000 did not properly support AT&T and has very poor call quality and call drop issues.
Sent from my Xoom using XDA Premium App
Click to expand...
Click to collapse
That's because the i9000 is only tri-band UMTS and only supports AT&T's 1900 frequency. When it gets to an area where the 1900 H/3G signal is weak, it can't switch over to the 850 UMTS simply because its hardware doesn't support it. So, then the phone call drops. You'll notice if you switch the i9000 to 2G/Edge, you'll never get a dropped call... because it's quad band GSM.
Also, ever notice you never get dropped calls when stationary and on H/3G? That's because with a solid 1900 UMTS signal, the i9000 will never search for the unsupported 850 band.
(And yes, I have confirmed all of this as I also own an i9000.)
i9100 supports quad-band UMTS with 850/1900 H/3G, so you will not have the frequent dropped calls anymore.
Here are the frequencies for AT&T: http://en.wikipedia.org/wiki/AT&T_Mobility#Radio_Frequency_Summary
Frequencies used on the AT&T Network
850 MHz GSM/GPRS/EDGE 2G
1900 MHz GSM/GPRS/EDGE 2G
850 MHz UMTS/HSPA 3G
1900 MHz UMTS/HSPA 3G
700 MHz LTE 4G
So, the i9100 International will do almost all. Except LTE.
pepemosca said:
Here are the frequencies for AT&T: http://en.wikipedia.org/wiki/AT&T_Mobility#Radio_Frequency_Summary
Frequencies used on the AT&T Network
850 MHz GSM/GPRS/EDGE 2G
1900 MHz GSM/GPRS/EDGE 2G
850 MHz UMTS/HSPA 3G
1900 MHz UMTS/HSPA 3G
700 MHz LTE 4G
So, the i9100 International will do almost all. Except LTE.
Click to expand...
Click to collapse
Thanks for your information.
Hey guys,
For those living in the US... do you happen to know what companies are compatible with our 3G bandwidth frequencies ?
I bought a T-Mobile SIM Card, it's working fine but I can't get 3G (UMTS) , just 2G (GSM) since T-Mobile uses 1700 and 2100 Mhz for his High Speed Data connections... and this mobile (both, sk17a and sk17i) doesn't support 1700mhz, but 850, 1900 and 2100.
I know AT&T uses 850&2100Mhz for 3G, but I think this company banned internet calls through 3G, which sucks.
So... is there any other company compatible with our mobile with 3G support?
Thanks
Did you order the phone outside of the US?
No, I ordered it on amazon and is the American model
Sent from my SK17a using XDA App
I got mine on Amazon and it's a SK17i.
I have T-mobile, but I have a problem with losing network randomly every now and then whatever I do.
edit:Apparently it was a SK17a. Could've sworn it said SK17i on the order page... Odd. Oh well.
I have network mode on manual and set to GSM only, but I still lose signal sometimes...
Try setting 'network mode' to manual, and choosing 3G or 2G only. It seems to help.
Hello All,
I am on tmobile and had samsung galaxy s before i got SGS2 from at&t (my wife upgraded). i unlocked/rooted the phone after reading through the posts and it worked like a charm!
My concern right now is that I am always on edge data network with tmobile. can anyone help me on this. Tethering is also not much of use when i am on the slowest connection. Please help.
Can't do much about it since AT&T version doesn't support the 3g/4g band for T-mobile.
At&t gs2 doesn't support t-mobile frequency for 3 g.
Sent from my SAMSUNG-SGH-I777 using xda premium
I thought this phone has all the bands to support all networks.
parags1982 said:
I thought this phone has all the bands to support all networks.
Click to expand...
Click to collapse
No only AT&T.
My guess is that international version supports all the bands not the carrier branded sgII
^Even international version doesn't support T-Mobile 3g/4g (HSPA+) network.. Not many phones support their network. Or maybe it will.. but not everywhere
AT&T SGSII
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
T-Mobile SGSII
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 1700 / 2100
International SGSII
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100
I am following another post that lets says HOW TO: "Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S''. will update how it goes... fingers crossed..
parags1982 said:
I am following another post that lets says HOW TO: "Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S''. will update how it goes... fingers crossed..
Click to expand...
Click to collapse
No luck. i read somewhere that i may need to install another modem?
Is there anyone out there with the same issue as mine?
any experts out there?
parags1982 said:
I thought this phone has all the bands to support all networks.
Click to expand...
Click to collapse
The AWS (1700) bands are supported only by a handful of carriers. It doesn't exist at all in Europe and Asia. There's little reason for manufacturers to include it on their global phones as so few people use it. It's the reason the T-Mobile SGS2 has a Qualcomm chip instead of Exynos like the rest of them. After the merger, it won't even exist in the U.S. any longer as AT&T plans on using it (1700) for LTE. If you want versatility and the ability to use unlocked phones, change to AT&T.
parags1982 said:
I am following another post that lets says HOW TO: "Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S''. will update how it goes... fingers crossed..
Click to expand...
Click to collapse
In order to get T-mo 3G, a phone must support HSPA on 1700MHz AWS band, not 850MHz. As such, only phones from T-Mo or some Candadian carrier support 1700 band. Rest of the world use 900/2100 for 3G and AT&T uses 850/1900 for 3G/4G.
You are never going to get 3G on T-Mo on any phones from AT&T. Period. Give it up.
foxbat121 said:
In order to get T-mo 3G, a phone must support HSPA on 1700MHz AWS band, not 850MHz. As such, only phones from T-Mo or some Candadian carrier support 1700 band. Rest of the world use 900/2100 for 3G and AT&T uses 850/1900 for 3G/4G.
You are never going to get 3G on T-Mo on any phones from AT&T. Period. Give it up.
Click to expand...
Click to collapse
thanks. i give up
TMobile uses 1700 up, 2100 down. If the handset doesn't support 1700, you are out of luck.
Correct. Many phones support the 2100 MHz International band.
T-Mobile's network is weird though, and uses both 1700 and 2100 MHz at the same time.
My guess is that UMTS1700 support and not 42 Mbps HSPA+ is why the T-Mobile variant of the GS2 is such an oddball phone.
NO AT&T phone and only a small handful of international phones support T-Mobile's 1700 MHz band.
Similarly, only one or two T-Mobile phones (The Vibrant being one of them) support any of AT&T's 3G bands, but none support all of AT&T's 3G bands to my knowledge.
The interesting thing about this entire thing is that if you go into the modem band selection it lists 5 different wcdma bands including the aws 1700. I enabled those bands and tried using a tmo sim but alas it still only worked on edge. It may have just been there cosmetically rather then actually supporting aws bands. use dialer code *#2263# to access the band selection menu. Maybe there is a way to get it to work.
pb1866 said:
The interesting thing about this entire thing is that if you go into the modem band selection it lists 5 different wcdma bands including the aws 1700. I enabled those bands and tried using a tmo sim but alas it still only worked on edge. It may have just been there cosmetically rather then actually supporting aws bands. use dialer code *#2263# to access the band selection menu. Maybe there is a way to get it to work.
Click to expand...
Click to collapse
I agree with you and have tried exactly what you did (along with other bands) but still not working.
pb1866 said:
The interesting thing about this entire thing is that if you go into the modem band selection it lists 5 different wcdma bands including the aws 1700. I enabled those bands and tried using a tmo sim but alas it still only worked on edge. It may have just been there cosmetically rather then actually supporting aws bands. use dialer code *#2263# to access the band selection menu. Maybe there is a way to get it to work.
Click to expand...
Click to collapse
Typically, the s/w supports multiple versions of h/w. Just because an option's in the menu doesn't mean the h/w's available to support it. The same thing happened with the T-Mobile G2X. It was supposed to be quad-band, the option was in the ROM, but the radio wasn't there to support all the bands.
Hey guys, just about to trade and get one of these, I just want to know if it can work in the UK because At&t is USA based. Will my O2 sim work in it by using the app from the market which carrier unlocks it?
No comments about my username please
sensation lover said:
Hey guys, just about to trade and get one of these, I just want to know if it can work in the UK because At&t is USA based. Will my O2 sim work in it by using the app from the market which carrier unlocks it?
No comments about my username please
Click to expand...
Click to collapse
It'll probably work but I don't think o2 supports the 3g bands our phone uses so you'll be running on edge
Sent from my SGH-I777 using Tapatalk 2 Beta-5
thanks,
I searched up o2's 3g bands and it came up with, 850,900 and 1800.
The samsung galaxy s2 i777 model bands: Quad-Band 850/900/1800/1900 MHz, 3G EURO/AT&T AND 3G Network HSDPA 850 / 1900 / 2100
So it could possibly work. I don't use 3G much anyway, I only get 2g in my area and at school I get HSDPA. Might ask the trader if i can trial the:
a) sim
b) network connection bands
sensation lover said:
thanks,
I searched up o2's 3g bands and it came up with, 850,900 and 1800.
The samsung galaxy s2 i777 model bands: Quad-Band 850/900/1800/1900 MHz, 3G EURO/AT&T AND 3G Network HSDPA 850 / 1900 / 2100
So it could possibly work. I don't use 3G much anyway, I only get 2g in my area and at school I get HSDPA. Might ask the trader if i can trial the:
a) sim
b) network connection bands
Click to expand...
Click to collapse
Just might have to make sure you are not in a 1900 mhz band area
Sent from my SGH-I777 using Tapatalk 2 Beta-5
Just FYI, only ONE of the frequencies need to match for you to get 3G, they don't send out one frequency at a time.
Want to get the s3 but want to make sure it works with TMobile.
No, you will only get edge speeds, no 3g.
Sent from my GT-I9300 using xda premium
It works for me. Bought my unbranded, non-simlocked phone in Europe. Visiting US now. Daily plan with T-Mobile works fine for me.
Sent from my GT-I9300 using Tapatalk 2
shaft77 said:
It works for me. Bought my unbranded, non-simlocked phone in Europe. Visiting US now. Daily plan with T-Mobile works fine for me.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
And you are getting 3g speeds??
I doubt that, the international version doesn't have the frequency for tmo's 3g.
Sent from my GT-I9300 using xda premium
i also tried my att i747 sgs iii after i unlocked it with a t mobile sim.. works but also only get edge.. maybe it would work if i flashed the t mobile modem?
lgkahn said:
i also tried my att i747 sgs iii after i unlocked it with a t mobile sim.. works but also only get edge.. maybe it would work if i flashed the t mobile modem?
Click to expand...
Click to collapse
Sorry I pressed thanks instead of quote.
No, its nothing to do with the modem. If it was, people all over the world would be buying devices from other countries.
The fact is the international GSM version only works on the frequencies its designed to work on. This is a hardware limitation and no amount of software will resolve that.
International frequencies are different to USA frequencies and as such, devices not designed for the USA will not work to their full potential in the USA.
UK (international) uses 900 Mhz/1800Mhz GSM/3G where as USA T-mob uses 1900Mhz GSM and 2100Mhz 3G.
Because the International GSM quad band device is:
850/900/1800/1900 MHz...
The GSM and 2G function works on 1900 (T-mob) but has no way to use 2100 for 3G as its not physically possible
Edit:
USA Carrier Voice Frequencies (MHz) 3G 4G Notes
AT&T 850 (Band 5)/ 1900(Band 2) 850 / 1900 Band 17 (700MHz)/AWS (1700/2100 MHz) GSM
MetroPCS 1900 / AWS 1900 / AWS AWS CDMA
Sprint 1900 1900 2500 / 1900 G-Block CDMA
T-Mobile USA 1900 AWS(1700/2100 MHz)/PCS (1900) AWS (1700/2100 MHz) GSM
Verizon 800 / 1900 800 / 1900 700 / AWS CDMA (GSM for 4G)
http://en.wikipedia.org/wiki/Cellular_frequencies
rootSU said:
Sorry I pressed thanks instead of quote.
No, its nothing to do with the modem. If it was, people all over the world would be buying devices from other countries.
The fact is the international GSM version only works on the frequencies its designed to work on. This is a hardware limitation and no amount of software will resolve that.
International frequencies are different to USA frequencies and as such, devices not designed for the USA will not work to their full potential in the USA.
UK (international) uses 900 Mhz/1800Mhz GSM/3G where as USA T-mob uses 1900Mhz GSM and 2100Mhz 3G.
Because the International GSM quad band device is:
850/900/1800/1900 MHz...
The GSM and 2G function works on 1900 (T-mob) but has no way to use 2100 for 3G as its not physically possible
Edit:
USA Carrier Voice Frequencies (MHz) 3G 4G Notes
AT&T 850 (Band 5)/ 1900(Band 2) 850 / 1900 Band 17 (700MHz)/AWS (1700/2100 MHz) GSM
MetroPCS 1900 / AWS 1900 / AWS AWS CDMA
Sprint 1900 1900 2500 / 1900 G-Block CDMA
T-Mobile USA 1900 AWS(1700/2100 MHz)/PCS (1900) AWS (1700/2100 MHz) GSM
Verizon 800 / 1900 800 / 1900 700 / AWS CDMA (GSM for 4G)
http://en.wikipedia.org/wiki/Cellular_frequencies
Click to expand...
Click to collapse
yes i agree for international version.. but if you read closer i DONT have the international version but the att version.. and as far as i know all the usa versions are the same with just diff. modems.
The international version will work in areas where T-Mobile is refarming 1900mhz to 3G. However this is only happening in parts of the coasts. I'm using it in Ohio and getting EDGE only. That said, it isn't too bad.
Sent from my GT-I9300 using Tapatalk 2
joshnichols189 said:
The international version will work in areas where T-Mobile is refarming 1900mhz to 3G. However this is only happening in parts of the coasts. I'm using it in Ohio and getting EDGE only. That said, it isn't too bad.
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Erm, it's being tested in some coastal areas, but the 3g/hspa+ over the 1900 band is slated to go live on the majority of the network by the end of the year.
Sent from my GT-I9300 using Tapatalk 2
No service HELP or clairfication PLEASE
I purchased a Tinji i9300. I have been working on this for over 3 weeks. I have no service with T-mobile. It recognizes my SIM card as T-mobile. In Engineer Mode, my bands are, EGSM900, DCS1800, PCS1900, GSM850, WCDMA-IMT-2000. I have tried numerous ROMs (stock and custom) and have rooted the phone. I have changed the IMEI. No service at all. Any thoughts? Band issue? T-mobile issue? Possible solution? **** out of luck? :crying:
Thank you!