I have a tmobile samsung galaxy s2 which I unlocked (I called tmobile, told them I had to travel overseas so I needed unlock code, and they gave it to me, and I put an att sim card in to unlock it, and unlocked it), but what I am afraid about is the frequencies...
I really need at least 3G internet this summer on my phone, and I will be going to Volgograd, Russia for 2 months. BUT the frequencies of Russian mobile phone carriers are UMTS 900 and 2100. t989 only supports 850, 1700, 1900, 2100 umts. It does NOT support 900. So I am wondering, how does this affect the speed or the coverage of the 3G internet that I will be trying to get?
Btw, I have not rooted my phone or anything. Just unlocked. Do I need to root it? I don't want to break it, and I want to go back to tmobile when I come back, they have really good 4G internet.
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I'm new here and I enjoyed this site very much. I have one problem with my TP2. Somehow, 3G network is not working after I installed Hard-SPL and unlocked T-Mobile TP2 switch to AT&T sim card. Everything is working fine with AT&T's sim card I was able to made phone calls, received, SMS, and web browsing. ATT 's 3G network is available around my home, but I can not get 3G on TP2 instead a EDGE network. Can unlocked TP2 handle AT&T's 3G network? or a .cab file I can download to fix this?
idk for sure but i think t mobile uses a different frequency for 3g from at&t so if they are you are stuck with edge speeds on at&t man sorry
I have the tmobile TP2 and i can confirm from talking with ATT that the phone does support ATT BUT i was unable to use the phone on 3g. The phone DOES support the signals for 3g but am still unable to access the towers in my area. I think the phone may be hard set to look at tmobile towers, is there any way i could reset the device to open up its tower usage? Hopefully i can get an answer but no tmobile TP2 users arent screwed in the US we just need to find a fix
It was my understanding that the tmobile tp2 does NOT have 850/1900mhz 3g on it. It does have aws 1700 for sure. Not sure about 2100mhz though for overseas.
This issue has been covered many times in the numerous AT&T threads on this board.
I'm sorry to tell you that the T-Mobile TP2 hardware radio was limited to using 3G over the 1700/900Hz frequencies, while AT&T currently uses 1900/850Hz only. It's unlikely that any change can be made to the radio software wise to fix this issue.
Just to make things clear the issue has nothing to do with Hard SPL or custom roms.
T-Mobile UMTS 1700/2100 Mhz
T-Mobile 3G runs on UMTS 1700 up and 2100 down. Unless you have a device that runs on those specific frequencies, EDGE is the best you can do with T-Mobile if you opt to run on their service.
ATT offers UMTS or 3G using 850mhz(the old TDMA band) and 1900mhz. While T-mobile offers HSDPA (technically 3.5g part of the UMTS specification) using 1700MHz for uplink and 2100MHz downlink.
Because HSDPA is part of the UMTS spec, it’s backward compatable. However, you have the limiting factor beging that the frequencies the individual carriers use to transmit the data.
Europe and Asia’s 3G runs on 1900/2100mhz. North and south America is supposed to use the (AWS) 3G spec using 1700/2100mhz
ATT didn’t want to wait, like T-mobile is doing, for homeland security to vacate those frequencies and launched on 850/1900mhz instead
ace.app said:
ATT didn’t want to wait, like T-mobile is doing, for homeland security to vacate those frequencies and launched on 850/1900mhz instead
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I heard that t-mobile did not have enough spectrum in many areas to launch 3g in its existing 1900mhz. At&t doesn't have that issue, or as bad.
Im gonna make this real easy for u. The tmobile tp2 will not work on at&t 3g. The 3g bands are different
OK call me foolish but I got fed up with TMobile and switched to ATT because the company offered to pay my data plan to keep me on call. I had been saying no but a billing problem that they refused to fix left me steamed. Anyway, is there anyway to make AT&T 3G work on my Tmobile TP2?
T-mobile is only edge...you cant use 3g unless you have a tilt 2
djteotancolis said:
T-mobile is only edge...you cant use 3g unless you have a tilt 2
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Let me rephrase that, for all the people that got "confusimacated" at first glance (like me)
The T-Mobile TP2 will work on AT&T's system, but it will only be capable of EDGE, and not 3G due to the fact that AT&T's and T-Mobile's 3G service use different frequencies.
Overseas Version
I have the overseas HD2 (LEO) which in not branded by T-Mobile. I also have ATT, can i get 3g on it?
at&t 3G is on the WCDMA 850/1900 megahertz bands. The Leo operates on EU frequencies, 900/2100 WCDMA for 3G service. Your Tmobile gets 3G on the 1700 MGHZ band. You need a phone with NA 3G frequencies to get 3G from at&t, and those are 850/1900 WCDMA. None of your devices will see 3G here in NA. Europe operates 3G on 1900 and 2100 and a few on 900 WCDMA, Japan and South Korea are on 2100 WCDMA only and NA is on 850/1900, so you need to be really careful of the hardware you purchase for it to work where you want it to and at the speeds you want. Edge comes on the older GSM frequencies and almost all phones have the 4 GSM frequencies, 850-900-1900-1800, but none have all the GSM and all the WCDMA frequencies, could but don't. Most US phones will have 3 WCDMA frequencies, 850-1900-2100. Better to buy an unlocked tilt 2 or sign an agreeement with at&t for a discounted phone.
Good luck.
I have a rather weird question. I would like to know if somebody have used/tried/tested t-mobile's version of SGS2 on AT&T 3G. On t-mobile's specs web page it says that can work on UMTS 850, but i would like to know if UMTS 1900 is disabled/bypassed. My son doesn't like the AT&T version (i can not understand why), so i do not want to pay for this phone if UMTS 1900 is disabled, and later on have him begging for another phone, because can't be used on AT&T.
Thank you in advance.
Running unlocked on ATT.
Hspa+ works fine..
No offense but your son doesn't know what he wants.
Sent from my SGH-T989
use the search ....
http://forum.xda-developers.com/showthread.php?t=1300028
Hi, I'm about to purchase the Galaxy Captivate Glide right now. I just had one question, will the phone work on Simple Mobile?
Simple Mobile is part of TracFone, which pretty much uses T-Mobile's for the Simple Mobile network.
I think, if you buy an unlocked version, that will be usable on any network.
It works on these type of networks:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
Just called up Simple Mobile support and they confirmed that the Samsung Captivate Glide works on their network.
Note that it'll work on 2G EDGE, and on re-farmed T-Mobile 1900 MHz spectrum only.
StraightTalk may be a better option. I just got an i927R from NewEgg (Roger's version -- supposed to be unlocked) and it works great on StraightTalk, provided you get the AT&T SIM card. It will work on their HSPA+ network for "4G" (not true 4G).
Also, if you went through NewEgg as well, you may need to get an unlock code... It's apparently still locked to Rogers... It was only $9 for me (and I have a thread for a review on it) and it worked well. If you get a prompt for it, make sure you don't just "guess" something -- after three attempts, your phone cannot be unlocked anymore, apparently.
My brother has the AT&T version of StraightTalk for his Nexus phone, says it's great. I am considering going this route when the contract is up on my Glide (1 year to go from about now), but I thought about doing the T-Mobile version since they seem to have better signal at my house. That's unfortunate the Glide doesn't cover their current 3G (or fake 4G) frequency. Who knows, maybe they'll do more 1900 mhz by this time next year.
euro1990 said:
My brother has the AT&T version of StraightTalk for his Nexus phone, says it's great. I am considering going this route when the contract is up on my Glide (1 year to go from about now), but I thought about doing the T-Mobile version since they seem to have better signal at my house. That's unfortunate the Glide doesn't cover their current 3G (or fake 4G) frequency. Who knows, maybe they'll do more 1900 mhz by this time next year.
Click to expand...
Click to collapse
I am using an MVNO that runs ontop of T-Mobile. I am getting 4g on the Glide. This is because T-Mobile has started rolling out it's 1900MHZ network that is compatible with most radios on ATT phones. Lots of iPhones have been getting 3G on T-Mobile lately, along with both my HTC Vivid as well as my Samsung Captivate Glide.
I am in San Jose, CA.
http://airportal.de/ <---- I don't know if I'm allowed to LINK EXTERNALLY, however I'm not doing it for Advertising. This site has a map for sightings of T-Mobile's 1900MHZ network. You can add sightings as well.
Will i get the 4g feel with simple mobile on my glide ?
Hi, I am sorry if this has been asked already. I am wondering whether a Sprint Samsung S6 Edge PLUS can be unlocked(Via Sprint, not third party) to work on other networks? I am currently on Verizon and am considering buying my friend's S6 Edge plus because he gave me a good deal. Thanks for your time.
Sprint would unlock it . Its happened to a few people i know who purchased it outright . Call sprint and ask for the device to be unlocked domestically
USA Prepaid?
Can this be done to use a Sprint S6 on a USA prepaid carrier?
What if phone is brand new and never activated on sprint network?
It'll work in the USA but no lte support as of yet for sprint unlocked to gsm
Yes and No, the G925P is a Sprint phone meaning its a CDMA Phone, Verizon uses the same technology on their network, CDMA phones have to be reprogrammed to work on another carrier using a CDMA Network. But this phone is a dual GSM/CDMA Phone, meaning since GSM phones use a SIM Card so you can if Sprint Unlocks the phone because you own it outright you can go to another GSM carrier and some or all the features might work, this phone is different than the G925F international GSM phone which will work almost anywhere in the world as long as its connecting to a GSM Network. All you do then is just change the SIM card and your connected to that carrier. If you want to be on Verizon its best to just get a G925V from them because its already programmed for Verizon rather than trying to make this Sprint Phone work on their CDMA Network. It can be done but to reprogram the damn thing is not that easy and very time consuming for a newbie to tackle. Sell it, get a Verizon phone if you like it that much. or switch to Sprint.
here is an easy way to look at this, LTE is built on GSM hence why the new sprint/verizon LTE phones have SIM cards, you can try to switch to AT+T or T-Mobile but you may loose 2g-3g connectivity, maybe, maybe not all depends on the phone variant, so lets look at Verizon
Verizon -
CDMA/LTE
uses 700 MHZ (band 13) and 1700 MHZ (band 4)
Sprint-
CDMA/LTE
uses 800 MHZ and 1900 MHZ (band 26 and 25)
and 2.5 GHZ for Sprint Spark (band 41)
so you see they operate on different bands, I noticed not all S6's have the same bands either, depends on the carrier and these phones are made for them to be different, so to find a phone that has all of these bands would work in theory on any network but with CDMA they have electronic serial numbers embedded in the device and you will have to reprogram the radio/chip in order to work on another carrier. So to answer can I use a sprint phone on verizon would be a simple NO.