I have an AT&T Samsung Captivate and I'm using it with Tmobile with root and sim unlock. I know that the signal will always be on edge and whatnot but is there a radio file or anything I can use to give me better signal because I either have no signal or 2 bars on it. help?
not sure how well any of these will end up working as you know you will only get 2g...but the modem sticky at the top of the dev sectoin is what you're looking for.
http://forum.xda-developers.com/showthread.php?t=876391
Thanks, ill look in to it.
Ima have to flash into gingerbread since im in eclair
Sent from my SAMSUNG-SGH-I897 using XDA App
Froyo would do it...
i know 3g isnt supported because of no 1700 band but dont both tmobile and att use 2100 for hspa (4g)? shouldnt we be able to use that?
Edit: I unlocked and tried a friends sim card and could only get edge, I don't know if maybe there's a setting to change to get hspa working (I know stock captivate didn't even support hspa) but I didn't try for very long.
Has anyone else managed to get hspa working?
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Is there a way to make a rooted Captivate connect to the T-Mobile 3G radio frequencies? I'm comfortable using various ROMs and hacks....
I could be wrong but I think the 3g frequencies are different so it wont work.if there is a way I'd like to know also.
Sent from my SAMSUNG-SGH-I897 using XDA App
I thought this was already discussed when the unlock codes were found. The Captivate should work on Tmob 3G but the Vibrant cant on Att 3G. I don't believe you need to do anything to make the frequencies any different.
Tried my friend's sim from TMO in my captivate and it only does edge. His sim back in his G1 gets 3G so it is not the area. I believe the Vibrant works on ATT 3G but the Captivate doesn't work on TMO 3G.
flashman2002 said:
I thought this was already discussed when the unlock codes were found. The Captivate should work on Tmob 3G but the Vibrant cant on Att 3G. I don't believe you need to do anything to make the frequencies any different.
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you have it mixed up: vibrant can work on one of at&t's 3g bands, but captivate will not work on any t-mobile 3g bands.
Yes that is correct, I do have these mixed up. I meant to say vibrant would work on att and captivate would not work on tmob. Sorry for my error.
Sweet life
I'm on my captivate w t-mobile w no luck on 3g. Too bad because I prefer the design of the captivate over the vibrant. I'll try to make due w 2g & WiFi.
That's too bad... However I just ordered a Vibrant, and I can sell my captivate for what I bought it for. So far loving the Galaxy S line!
Has their been any development on running a Vibrant modem on the Captivate to enable 3G?
you mean running a captivate on tmobile using 3g? I could be wrong but isn't what is limiting that, the phone hardware and not modem software? not sure
Sent from my SGH-T959D using XDA App
You right. It is hardware based. You will never be able to get AT&T 3G on a T-mobile phone and vise versa.
zelendel said:
You right. It is hardware based. You will never be able to get AT&T 3G on a T-mobile phone and vise versa.
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Im pretty sure u can run a captivate on tmo 3g but not a vibrant on att 3g. Or the other way around. One way u can.
Sent from my SAMSUNG-SGH-I897 using XDA App
There is a version of the vibrent I think from Canada that uses the same 3g bands as att. I have both the captivate and the vibrent from T-Mobile and 3g doesn't work on either if I swap the sim cards
Sent from my SGH-I897 using XDA App
Im using my t-mo vibrant unlocked on at&t. I also get 3g. The captivate unfortunately does not pick up the t-mo 1700mhz 3g.
jakkzen said:
Im using my t-mo vibrant unlocked on at&t. I also get 3g. The captivate unfortunately does not pick up the t-mo 1700mhz 3g.
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How's the coverage and speed? Have you run a speed test? Would love to see a screen shot of this.
I'm assuming you're rooted, btw....
Hmm.. I had tried to use my brothers Nexus 1 T-Mo with my AT&T sim and I could only get Edge.
I could have sworn that the two networks are incompatible due to the internal modems and the bands that they are using like zelendel said before.
Otherwise I would've gotten my hands on a Nexus S
avgjoegeek said:
Hmm.. I had tried to use my brothers Nexus 1 T-Mo with my AT&T sim and I could only get Edge.
I could have sworn that the two networks are incompatible due to the internal modems and the bands that they are using like zelendel said before.
Otherwise I would've gotten my hands on a Nexus S
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From what I remember reading AT&T uses three bands for data and T-mobile only uses one.
So I'm certain you all have heard about the AT&T, Tmobile merger that's coming along. Assuming that it gets approved, I'll suddenly have 3g and 4g available in my area (finally!) since Tmobile is the only one that currently supports it in our area.
My question is - will the Captivate function on the T-mobile tower spectrum for 3g and 4g data?
Please research as the answer is no. The captivate does not have any bands that work on T-Mobile. The virbrant does have bands that work on att.
Sent from my SGH-I897 using XDA Premium App
flashman2002 said:
Please research as the answer is no. The captivate does not have any bands that work on T-Mobile. The virbrant does have bands that work on att.
Sent from my SGH-I897 using XDA Premium App
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How unfair! My boyfriend has the vibrant, and one of his coworkers has the new Galaxy 4g. Well, I hope they somehow tweak it so that the towers broadcast on the AT&T bands as well, else that will really stink, and provides no benefit for AT&T customers.
I saw something on Gizmodo saying that 3G phones with T-Mobile bands will no longer work on the new combined network after integration is complete. That leaves only AT&T 3G devices and whatever 4G LTE devices are around by then. So it sounds like towers will be broadcasting only AT&T frequencies.
My apologies if this information is inaccurate in any way.
Perception 10.2 | SpeedMod K13D | I9000ZSJPG
Ikonomi said:
I saw something on Gizmodo saying that 3G phones with T-Mobile bands will no longer work on the new combined network after integration is complete. That leaves only AT&T 3G devices and whatever 4G LTE devices are around by then. So it sounds like towers will be broadcasting only AT&T frequencies.
My apologies if this information is inaccurate in any way.
Perception 10.2 | SpeedMod K13D | I9000ZSJPG
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Awesome for me! Sucks for my boyfriend! (though his vibrant can use AT&T frequencies if jailbroken, which he has not yet done)
jamina1 said:
How unfair! My boyfriend has the vibrant, and one of his coworkers has the new Galaxy 4g. Well, I hope they somehow tweak it so that the towers broadcast on the AT&T bands as well, else that will really stink, and provides no benefit for AT&T customers.
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I should restate what I said. The phone will work. It just won't have 3G speeds if you are using data. The Vibrant however still works on AT&T 3G towers. I don't know how or if they will actually disable bands as mentioned in a previous posters link to Gizmodo. Sorry for not being more clear in my original post.
flashman2002 said:
I should restate what I said. The phone will work. It just won't have 3G speeds if you are using data. The Vibrant however still works on AT&T 3G towers. I don't know how or if they will actually disable bands as mentioned in a previous posters link to Gizmodo. Sorry for not being more clear in my original post.
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I guess we'll just have to see - it makes sense that AT&T would convert the towers, just as they are currently they won't work. So either way in my case and my boyfriend's case we'll have to wait till our area is integrated and see what happens.
What about this?
http://www.howardforums.com/showthr...850mhz-and-1900mhz-bands-too.-Works-on-ATT-3g
This thread is from last year before we really had a lot of mods to our phones. So maybe more information has been discovered?
Now we are flashing international ROMs and such and swapping modems as we like.
It seems odd that the Vibrant would be able to work on the ATT 3G frequencies but the Captivate would have been manufactured differently. And the I9000? One would think it would be capable of all the bands?
I do have both ATT and TMO sim cards with data on both plans. However, I only get Edge in my Captivate with the TMO sim inserted.
Wow. This hasn't been hashed out 100 times.
Cappy has different radio HARDWARE. Vibrant will get certain Att 3G band but the chances of you having correct band is slim since its older and slower 3G.
Sent via my Continuum 5 Cappy.
Ok, I know this is an odd question but I am confident it can be answered here.
I want to buy another android phone, it needs to be something fairly recent that ATT still stocks at least online if not at the stores so I can use an upgrade.
And I want to be able to also use the TMO 3G system/frequencies with it.
I know the unlocked Captivate won't work on the TMO 3G system but does anyone know if any other phones have the proper radios to support both ATT and TMO frequencies when I swap out the sim card?
Just to reply to my own thread, after an hour or so of searching its looking like ATT phones currently available do not have the required 1700hz band that is needed for TMO 3G speeds.
I am hopingIi am wrong here and that someone knows otherwise.
I did find a few references to some TMO phones working on ATT bands but those obviously wont help me if I am trying to use an upgrade discount.
I was only searching current ATT phones so if someone knows of an older version let me know too.
Well I would recommend finding more concrete evidence on what freq Tmo has in your area and try this before buying but for example (acording to phonearena) Tmobile's Galaxy S 2 runs GSM 850, 900, 1800, 1900 same as ATT"s Galaxy S 2 (not skyrocket). TMO's Galaxy S runs UMTS 1700/2100, 2100 mhz. ATT's Galaxy S 2 (not skyrocket) runs umts 850, 1900, 2100 mhz. Meaning its possible to get edge, 3g and HSPA+ on att's Galaxy S 2 (not skyrocket) on Tmo. But That would depend on your area and how Tmo uses the different freq.
Edit: Its just an example but you can check more phones to see if any of them have overlapping frequencies.
So maybe there is hope.
I was under the impression that TMO needed 1700/2100 for 3G in my area as one was an upload and the other a download frequency.
What I did was pull up all the Android ATT phones I was currently eligible for and then typed the name into the xda search bar followed by 'tmobile'. That would usually take me to a thread in which someone was asking if that phone would also work on TMO 3G and it was invariably replied that they would only work on Edge with a TMO sim card.
I didnt check the GS2 or the Skyrocket though. I will do that today. Thanks for the reply. I knew there would be xda members out there that would have a better idea than me of how to find out.
I will do you a favor and check both of my gs2's with my wife's T-Mobile sim tonight.
Sent from my SAMSUNG-SGH-I727
Pirateghost said:
I will do you a favor and check both of my gs2's with my wife's T-Mobile sim tonight.
Sent from my SAMSUNG-SGH-I727
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Cool! Thank you.
A bit more research on xda says that there are some TMO phones ( Defy and Amaze 4G ) that work on the ATT 3G bands. That doesn't really help me much though. LOL.
FireRaider said:
Cool! Thank you.
A bit more research on xda says that there are some TMO phones ( Defy and Amaze 4G ) that work on the ATT 3G bands. That doesn't really help me much though. LOL.
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i wouldnt put much hope into it. you might get lucky in that the skyrocket works on TMo, but its doubtful. i have never seen an AT&T phone work on Tmo's 3g
Pirateghost said:
i wouldnt put much hope into it. you might get lucky in that the skyrocket works on TMo, but its doubtful. i have never seen an AT&T phone work on Tmo's 3g
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Skyrocket won't work. It doesn't have UMTS 2100 (Skyrocket runs on 850, 1900). The "Attain" (none lte) might because it has 2100.
http://forum.xda-developers.com/showthread.php?t=1299211
This thread says we are out off luck on this quest.
What I said. It might depending on the area. If where the OP lives Tmo uses the UMTS 2100mhz then he is lucky else he is SOL.
Edit: after finishing reading IF the phone uses 1700 for dl and 2100 for ul then ya tough luck D=
Hey guys
I have a bell HTC raider that I am using on rogers.. currently running vjraider .. my data is incredibly slow cause i got like 7-8mb/s before and now after I flashed the from I can't get over 3 ..
Can someone point me in the right direction?? Thanks!!!
Sent from my Galaxy Nexus using XDA App
Are your APN settings correct? That's probably the main thing that you should verify.
Radios are not flashable yet AFAIK, so you can pretty much rule that out as a factor.
cool thanks so much for your help!! um quick question though... does not having/not having the H+ make a difference?? I only get H or 3G with this rom...
Yes, 3G/H is 12/14mbps H+ is 21mbps and LTE is 42mbps.
I would start with the APN settings, i have th Bell version too but i'm with Bell and have no issues and always get H+ (turned LTE off)
I remember reading a while back that the symbols may be misleading. They also may've patched it.. Only thing I can think of is just doing a speedtest. Sorry if I'm no help
jebise101 said:
Yes, 3G/H is 12/14mbps H+ is 21mbps and LTE is 42mbps.
I would start with the APN settings, i have th Bell version too but i'm with Bell and have no issues and always get H+ (turned LTE off)
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If you are using a custom ROM , than the 3G/H may have different meaning. With Stock 3G ROM on bell 3G is slowest and I probably never used it for a while. H/H+ was 14mbps max but it normally maxed out and 6/7mbps and with LTE bell claims you can go upto 42 but I normally get data rates around 12/15mbps..
I agree that radio would not be the cause, it is going to APN settings or RIL (If you are on custom rom). I tried flashing my own RIL on a RunRaider ROM could not get it to work and so would probably have to wait for some one to make a flashable package for it. (Technically it should at the most only affect battery life and not data speed)
I never seen my phone on 3G it always H/H+ and i'm using stock. I never did a speedtest and could care less it seem more then enough for my needs.