If i unlock my G2 using gfree or anyother method will i still have my 3G when i switch it to AT&T from T-Mobile? does anyone know of any problems with signal and what not when it gets unlocked? thanks.
Army_Spec_Ops said:
If i unlock my G2 using gfree or anyother method will i still have my 3G when i switch it to AT&T from T-Mobile? does anyone know of any problems with signal and what not when it gets unlocked? thanks.
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You will only be to access 2G/edge data speeds, no 3G connectivity since AT&T uses different 3G bands.. assuming you are currently using a T-Mobile G2 with the carrier T-Mobile... :?
You won't have any signal issues unless AT&T has horrible coverage where you live.
you will not change anything hardware related... you just unlock/root your phone which allows you to modify hardware and software related things. But if you don't touch the antenna software then nothing will change
@CaliBoyPhillip; when I was in the states my phone switched from AT&T and T-Mobile all the time (roaming) and still had 3g reception, the phone supports most frequencies.
no im currently using a Aria with AT&T but im getting the G2 or the G2X tomorrow. and ok so i wont lose my 3G?
Army_Spec_Ops said:
no im currently using a Aria with AT&T but im getting the G2 or the G2X tomorrow. and ok so i wont lose my 3G?
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G2x will work with At&ts 3g/4g. As for G2 I was told it doesn't support the 3g/4g from at&t. Remember the buy out isn't final yet.
Sent from my HTC Desire Z/G2 using XDA Premium App
SnowOokami said:
you will not change anything hardware related... you just unlock/root your phone which allows you to modify hardware and software related things. But if you don't touch the antenna software then nothing will change
@CaliBoyPhillip; when I was in the states my phone switched from AT&T and T-Mobile all the time (roaming) and still had 3g reception, the phone supports most frequencies.
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hmmm Interesting... it was prob due to the reason that you were roaming but if he uses an AT&T SIM on his SIM unlocked G2 from T-Mobile, he won't have 3G access I think... The G2 runs on 850/900/1800/1900 for edge and 1700/2100 radio for 3G data, meanwhile AT&T operates on 850/1900 for EDGE and 850/1900 for 3G.... not compatible !
EDIT: source for the bands ATT uses for 3G gotten from here.. http://www.att.com/gen/press-room?pid=14003
CaliBoyPhillip said:
hmmm Interesting... it was prob due to the reason that you were roaming but if he uses an AT&T SIM on his SIM unlocked G2 from T-Mobile, he won't have 3G access I think... The G2 runs on 850/900/1800/1900 for edge and 1700/2100 radio for 3G data, meanwhile AT&T operates on 850/1900 for EDGE and 850/1900 for 3G.... not compatible !
EDIT: source for the bands ATT uses for 3G gotten from here.. http://www.att.com/gen/press-room?pid=14003
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THis is correct. The G2 WILL NOT work with ATT 3G. If you want 3G you need to purchase the NAM (North American Model) of the Desire Z. It is sold in Canada on the Bell Network. You can find it online unlocked and unbranded and it WILL work on ATT no problem. It is going to cost you though, 450-550 depending where you get it.
Same reason iphone won't connect to tmobile 3g...amazing people still don't understand this
Sent from my Vision using XDA Premium App
ok so stupid question but im gonna ask it anyways lol is there anything that i can do to make it work with 3G if i dont want to buy the desire z?
Not unless you know how and which chipset to replace on the board. Ie not possible.
Sent from my HTC Vision using XDA App
Army_Spec_Ops said:
ok so stupid question but im gonna ask it anyways lol is there anything that i can do to make it work with 3G if i dont want to buy the desire z?
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Nope, the phone's hardware is what decides what bands it can use.
Sent from my T-Mobile G2
Get a desire Z from rodgers Canada the 3g bands are the same
To bad radio isn't software
It's to bad that phones don't have the radio frequencies programmable in software (much like an fm radio). Is that even possible?
Related
Hello fellas. I've been with my G2 for about a month now, awesome phone, but the thing is I only can use EDGE network and not 3G.
Since my carrier here in Venezuela is Movistar, which operates in these bands: 850, 1900 Mhz.
Is there anyway to make my T-Mobile G2 work with my local carrier? Thanks in advance for the help.
Yes --- check out the HUGE APN thread here.
http://forum.xda-developers.com/showthread.php?p=2819321&
you just need to find the right apn for your area...
No, the T-Mobile G2 is not compatible with those UMTS bands (it only uses 1700/2100). If you wanted 3G to work, you would need to get the Desire Z NAM instead (i.e., the Bell Canada version). Probably too late since you already have the phone, but maybe you can sell your G2 and pick up one of those instead?
ianmcquinn said:
No, the T-Mobile G2 is not compatible with those UMTS bands (it only uses 1700/2100). If you wanted 3G to work, you would need to get the Desire Z NAM instead (i.e., the Bell Canada version). Probably too late since you already have the phone, but maybe you can sell your G2 and pick up one of those instead?
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Yep, he's right. The OP bought the wrong version.
ianmcquinn said:
No, the T-Mobile G2 is not compatible with those UMTS bands (it only uses 1700/2100). If you wanted 3G to work, you would need to get the Desire Z NAM instead (i.e., the Bell Canada version). Probably too late since you already have the phone, but maybe you can sell your G2 and pick up one of those instead?
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Yes, I made some research and the only way I can enjoy 3G is if I get the DZ Us Version...
I mostly blame the carriers in this POS country, they're so behind in technology.
or does the wifey need to buy a cheapo when she goes to the states next year?
Yes its quadband
Sent from my HTC Desire S using Tapatalk
It would help if you say what model number/versions you are talking about. The Euro DZ (or just about any model DZ, I think) has the GSM bands to operate on the two major US GSM carriers, AT&T and T-Mobile. As long as your phone is not SIM locked, you will have voice and EDGE data. But you will not get 3G data.
redpoint73 said:
It would help if you say what model number/versions you are talking about. The Euro DZ (or just about any model DZ, I think) has the GSM bands to operate on the two major US GSM carriers, AT&T and T-Mobile. As long as your phone is not SIM locked, you will have voice and EDGE data. But you will not get 3G data.
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the bell canada DZ works on ATT 3g...so long as your sim unlocked..
Sent from my HTC Vision using xda premium
I know my US g2 got 3G (or 4G? HSDPA+) in Poland. I have US T-Mo G2 on AT&T with only EDGE. And it should work on either AT&T or T-Mobile.
jaszek said:
I know my US g2 got 3G (or 4G? HSDPA+) in Poland. I have US T-Mo G2 on AT&T with only EDGE. And it should work on either AT&T or T-Mobile.
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It won't get 3G on both. As you've said it'll either get 3G on AT&T or T-mobile.
The Bell (Canada) DZ will get AT&T 3G. Other models will get 3G on T-mo.
martonikaj said:
It won't get 3G on both. As you've said it'll either get 3G on AT&T or T-mobile.
The Bell (Canada) DZ will get AT&T 3G. Other models will get 3G on T-mo.
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correct, G2 on tmo, dz on ATT.
Sent from my HTC Vision using xda premium
I have CM7 loaded, but doesn't really matter what rom I load, I can't seem to get 3G data speeds. I am getting internet, so that tells me the APN is setup correctly, just not 3G. Any thoughts?
Jason
probably need to look into a different radio
Any ideas? I tried 3 different ones!
Sent from my HTC Vision using XDA
The model I have is A7272 and I have an AT&T sim. Do you think the sim tells the phone what band to use for 3G? They have the option of a T-mobile sim, does anyone think that will work?
look up the A7272 on gsm arena to see what 3G band it supports and cross reference it with ATT's 3G band
Sent from my Desire Z via XDA App
I think it was because I had an ATT sim. I got a T-mobile sim and now I'm getting "H" everywhere. Still doesn't seem as fast as Verizon's 3G, but for $45/month I can't beat it. So the A7272 supports HSDPA 900 / 2100, is that why with the T-Mobile sim I can get H, because they have a 2100 HSDPA Frequency?
AT&T uses the 850/1900 spectrum for 3g and the 700mhz spectrum for 4g.
Since your phone supports none of those, that's why.
T-Mobile uses 1700/2100 (requiring both) or 1900 for 3g/4g. now, you only have half of the 2 spectrum requirement so you probably only have "half" 3g. Tmobile uses one spectrum for upload and one for download. I don't know which one is which, but if you only have one, that means you'll only get 3g/4g speed on either uploads or downloads, but not both.
I guess I fell into this trap as well... I bought a desire z thinking I could use 3g on it with my ATT/Straight talk sim. After unlocking and re-roming, I now see the same issue, stuck on Egde, and really slow edge at that.
jch2os, did you see a difference in your service area/call quality switching to the tmobile sim? I've been really happy using an Inspire on Straight talk with ATT's network, do you feel the tmobile service is a downgrade from what you previously had with ATT/Straight talk?
Thanks for the info!
After some research via eBay and Amazon, it turns out that there is two versions of the Desire Z. There is the A7272 which supports the WCDMA 900/2100 MHz bands and the A7275 which supports the 3G 850/1900 MHz bands.
idenlover, if your device is getting EDGE on the Straight Talk sim that runs on AT&T's bands, your device is the A7272 and you should get the T-Mobile Straight Talk sim. I myself am a G2 user on T-Mobile and I can say service and calling is pretty much crystal clear except in school, where there are numerous concrete buildings. Then again, I'm based in Miami, FL so I wouldn't know how service would be on your end. I hope this helps!
if you want AT&T you need the A7275 from bell canada.
Hi all! Look like i have the same problem. I have Desire Z from Russia - with russian symbols in a hard-keyboard. And in FIDO network i have only EGDE signal - never 3G. My question: what a part of phone i need change? Antenna? GSM-module? or something other? Please don't advice me change the phone - i need this keyboard, with russian symbols!!! )
P.S. If anybody know solution this problem in software (any radio, ROM, or etc.) - please, answer me too. I don't want a lot open the phone and change any parts, only if this really needed. )
P.P.S. If it important - my h-boot is 0.84.2000.
Thread moved to Q & A section.
Create a separate thread so more people can help
Sent from my HTC Vision using xda app-developers app
---------- Post added at 04:17 AM ---------- Previous post was at 04:14 AM ----------
From what I get from your problem is that your phone doesnt support the FIDO network 3g bands. I think that is hardware locked. Hopefully somebody can chime in
Sent from my HTC Vision using xda app-developers app
help! straight talk edge BS!
idenlover said:
I guess I fell into this trap as well... I bought a desire z thinking I could use 3g on it with my ATT/Straight talk sim. After unlocking and re-roming, I now see the same issue, stuck on Egde, and really slow edge at that.
jch2os, did you see a difference in your service area/call quality switching to the tmobile sim? I've been really happy using an Inspire on Straight talk with ATT's network, do you feel the tmobile service is a downgrade from what you previously had with ATT/Straight talk?
Thanks for the info!
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add another one to the list. how did you fix your problem, if at all? this stupid edge crap is garbage.
Anybody running one of these unlocked on Tmobile's network? if so, what kind of speeds are you getting?
I have tried a T-Mobile SIM in my Nitro before just for the heck of it. (I bought an unlock code for mine if anyones wondering.) Speedtest.net app said like 160kbps down, I forget what the up was but it was pretty low in the double digit kbps.
I am using on tmobile also...its not that fast since u only get 2g but to me its worth the sacrifice for this sweet phone
Sent from my LG-P930 using Tapatalk 2
why do you only get 2g? why cant u get 4g?
jrobinsky said:
why do you only get 2g? why cant u get 4g?
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T-Mobile in the US uses different frequencies for HSPA/HSPA+ than AT&T and has no LTE, so any AT&T phone used on T-Mobiles network only gets 2G.
gmkelly001 said:
T-Mobile in the US uses different frequencies for HSPA/HSPA+ than AT&T and has no LTE, so any AT&T phone used on T-Mobiles network only gets 2G.
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Just to elaborate. T-Mobile uses 1700/2100 aka AWS for 3G/HSPA. AT&T uses 850 and 1900 bands for 3G/HSPA.
There are phones that do all 3 bands, such as the Galaxy Nexus or HTC Amaze 4G, but its not common.
Sent from my LG Nitro HD
It might be possible to get 3G on T-Mobile it was done for ATT Samsung Galaxy Note SGH-I717 and ATT SGH-i727 by flashing modem from T-Mobile Galaxy S2. The LG Nitro HD features same cpu and modem as samsungs phones (APQ8060, MDM9200) so someone knowledge enough might be able to flash a model from a T-Mobile phone like Blaze 4G or T-Mobile S2 onto Nitro HD and 3G going on AWS.
From what I know, T-mobile's 1900MHz UMTS Band II is around in my area, but I'm stuck on EDGE. Scanning for networks when I was running the stock firmware that came with the LT26i showed T-mobile 3G along with 2G (and AT&T 2G/3G), but clicking 3G never worked for me. Now I'm running FreeXperia CM10 and it only shows T-mobile and AT&T without a 2G/3G distinction in any of them. Is anyone actually able to get on T-mobile 3G on a non-stock ROM? If yes, then how?
Bump as I would also like to know. I'm torn between getting this phone or the LT28H.
I am wanting to know this too... I am on Straight talk in Dallas TX and really want this phone, but not if I cant use it on T-Mobile's 3G.
Jess813 said:
I am wanting to know this too... I am on Straight talk in Dallas TX and really want this phone, but not if I cant use it on T-Mobile's 3G.
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I got one on loan from Sony and it works on T-Moble's HSPA network but obviously not at it's HSPA+ which is 3.5G AKA: Faux 4G.
quailallstar said:
I got one on loan from Sony and it works on T-Moble's HSPA network but obviously not at it's HSPA+ which is 3.5G AKA: Faux 4G.
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I'm OK with 3G as long as its not edge, screen shots please
Sent from my Nexus 4 using Tapatalk 2
This is EXACTLY what I am looking for.
So I just flash Hong Kong ROM (to debrand), and LT28i radio to get AWS HSPA + LTE?????
If so, how?
I have obtained required ROMs.
LT28a is SIM unlocked.
I need it to work on T-Mobile USA
Sent from my Nexus 4 using Tapatalk 2