Prepaid data only gets me “edege”???

[davisdrafting]

Unlocked and rooted google nexus 1 on  cyanogenmod 7 unable to get 3G data only “edege”

My phone got 3G w/ T-Mo but that was before Cyano7  is Cayno the issue or ATT

[ilikewireless ACE - Czar]

Your phone is tuned to T-Mobile frequencies by design. You can get Nexus 1 phones with AT&T frequencies too. If you wanted a phone with all 3G frequencies, checkout Nokia phones - read the spec and confirm them with Nokia.

[select]

i want know that too... will work the 3g with an unlocked Nokia N8? thanks

[davisdrafting]

My phone as is unlocked from factory, that’s the way Google sells them and it’s a GSM phone so changing the sim card out is all that should be needed to get on ATT’s 3G. 

Looks like T-mo has a better deal on pay as you go plans and don’t screw you on data by giving you edge instead of 3G.  

Back to T-mo i go...

[hnzw_rui]

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davisdrafting wrote:

My phone as is unlocked from factory, that’s the way Google sells them and it’s a GSM phone so changing the sim card out is all that should be needed to get on ATT’s 3G. 

Looks like T-mo has a better deal on pay as you go plans and don’t screw you on data by giving you edge instead of 3G.  

Back to T-mo i go...

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Google released 2 versions of the Nexus One in the US. One that's compatible with AT&T 3G (UMTS/WCDMA 850/1900) and one that's compatible with T-Mobile 3G (AWS 1700/2100). It doesn't matter if your phone is unlocked or not. The T-Mobile version doesn't have the necessary radios for AT&T 3G.

However, T-Mobile does have better prepaid deals. If you're already getting good coverage with T-Mobile, I have no idea why you'd want to switch to AT&T.

[davisdrafting]

Thank you so much for the clear and simple answer.

But I am still confused, isn’t 3G ATT and T-mo use GSM? I have access to ATT’s Edge which is from what I understand WCDMA?

[pl1]

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davisdrafting wrote:

Thank you so much for the clear and simple answer.

But I am still confused, isn’t 3G ATT and T-mo use GSM? I have access to ATT’s Edge which is from what I understand WCDMA?

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It was just explained to you. They are both GSM carriers, but for 3G/4G data, they use different frequencies. Your phone must match their frequencies. If it does not, you are stuck on 2G/EDGE.

AT&T uses 850 & 1900 MHz

T-Mobile uses 1700 & 2100 MHz

 http://en.wikipedia.org/wiki/Cellular_frequencies

 US Carrier   Voice Freq                          3G                4G                                                                 Notes 

AT&T

850 (Band 5)/ 1900(Band 2)

850 / 1900

Band 17 (700MHz)/AWS (1700/2100 MHz)

GSM

  US Carrier   Voice Freq                          3G                                  4G                               Notes

T-Mobile USA

1900

AWS(1700/2100 MHz)/PCS (1900)

AWS (1700/2100 MHz)

GSM

[pablocrego]

Yes, Nokia N8 will get 3G on both ATT and T-mo, as is pentaband.

[dhiraj113]

I am also facing a similar. issue. I am getting only Edge network connectivty on my HTC Incredible S mobile. The specifications of the mobile says that is supports the frequency bands GSM - 850, 900, 1800, 1900; UMTS - 2100. Is there any chance of 3G internt working on it. Posts in this thread say that AT&T uses 850 & 1900 MHz, then why am I getting only Edge(2G) connectivity. 

Is it a possiblity that certian frequencey bands though supported for voice communication but may not be supported for data(3G) commnication.