3g on ATT using google G1 - G1 Q&A, Help & Troubleshooting

I have a question.If AT&T and T-Mobile both use 1900 for 3g then why can't we get 3g on att?

Tmo US & Att use diff bands for 3G access but same for 2G.You will need to buy a Rogers Dream to use 3G on Att. A Tmobile branded phone is unable to use 3G from another carrier.

att 3g
does it have to be a rogers or a basic unbranded will work

The rom and radio
How does changing the rom affect the radio?Does the rom determine the freq the cell accesses?

the rom effects nothing. the radio effects nothing. the hardware determines what frequencies can be used by the device.
the only way the rom effects anything is if the APNs arent set correctly, but thats a simple fix. however, you cant change the APNs or ANY software on the phone to allow a TMO G1 to use 3G on ATT. Cant happen. If you really want a G1 on ATT, buy a Rogers G1 off ebay.

Related

T Mobile 3g

Does anyone know if the TYTN II works on the new T Mobile 3g network in New York City? Woule likr to hear from someone who is actually using this 3g network.
Does anyone know if the TYTN II works on the new T Mobile 3g network in New York City? Would like to hear from someone who is actually using this 3g network.
it wont work for 3g. att and t-mobile are on separate frequencies that the tilt wont pickup for tmobile's 3g network.
the tilt will only work in 2G.... EDGE and regular GPRS
My phone is not the Tilt it is an HTC branded TYTN II unlocked phone from HTC Hong Kong that I have on T Mobile
useradmn said:
it wont work for 3g. att and t-mobile are on separate frequencies that the tilt wont pickup for tmobile's 3g network.
the tilt will only work in 2G.... EDGE and regular GPRS
Click to expand...
Click to collapse
what do you mean the tilt will only pick up 2G..att's tilt is a 3g phone..i have one, but i am on t-mobiles service..i had to unlock the phone to do this first...and i can switch back and forth between 3G and tmobiles edge with the diamond commmanger app....ii just cant use att's 3g because i have a tmobile sim in my phone
Doesn't work.. I'm using TyTN II for NYC T-Mobile.. no 3G
It doesn't work because it uses different FREQUENCIES.
Look at it this way:
You want to call your friend, he has an htc touch. Let's call him, Lenny.
Then you change your mind, and you want to call your other friend, who also has an htc touch. Her name is Michelle.
If you dial Lenny's phone number, you won't get Michelle just because she has the same phone.
ATT 3g and T-mobile 3g are the same TYPE of network, but they use different frequencies. Just like Lenny and Michelle have the same phone, but different phone numbers.
Make sense now?
The TYTN II and it's Variants were not designed to operate on the frequency that T-mobile 3g operates on.
useradmn said:
it wont work for 3g. att and t-mobile are on separate frequencies that the tilt wont pickup for tmobile's 3g network.
the tilt will only work in 2G.... EDGE and regular GPRS
Click to expand...
Click to collapse
lets break this down a bit better for him so that he may undertand your post.
"it wont work for 3g. "(That is a period for a very short sentence, and he meams )
It won't work on tmobile 3g.
"att and t-mobile are on separate frequencies that the tilt wont pickup for tmobile's 3g network."
This one is more straight forward now that you have a better version of the first sentence.
It should go something like this
It won't work on the Tmobile 3g because att and and tmobiles frequencies for 3g are totally different from each other and the tilt doesn't support the tmobile one (as you know it supports the att one), BUT it does support edge and gprs..
Can the radio in the TYTN be changed to the new T Mobile frequency.whats there now is 1900/2100 and needs to be 1700/2100.
leon sprouse said:
Can the radio in the TYTN be changed to the new T Mobile frequency.whats there now is 1900/2100 and needs to be 1700/2100.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=390575

Is there any way to get the mda to use the 3g network?

I have an unlocked mda, but i want to use the 3g network. Is there anything i can do to get it to work? Or just get a (at&t) phone?
Basically, there should be no problem if you are using a 3G network based on GSM baseband. However if the 3G network is not GSM based, you have no way to get it work unless using another phone.

KAIS120 and AT&T Network

Just bought a KAIS120. Will start with the preinstalled HTC rom. Do I need to update the radio for it to work, or work better, on the AT&T network? I wasn't sure if the AT&T radio was only for the KAIS110/KAIS100. Is there anything else I will need to do to get it on the network?
Thanks
You should be OK -- I've been running one with the stock ROM on the AT&T network for over a year now, and it works just fine, even on 3G data.

Unlocked HD7

I have an HD7 from T-Mobile supplied to me by my company for testing. I reside in Canada and would like to use this phone with my Bell Mobility account so I have successfully unlocked the HD7 based on the instructions provided to me from T-Mobile. I worked with Bell on getting the phone on the network and no matter what the technician did the phone always showed "No Service".
According to the Bell Website it says:
"Your device must be compatible - it must be HSPA (or UMTS) and 850 MHz and 1900 MHz compatible."
The T-Mobile specs shows the following:
"850 MHz;900 MHz;1800 MHz;1900 MHz;UMTS: Band I (2100);UMTS: Band IV (1700/2100)"
The odd thing I find is that Bell Mobility released the HTC HD7 as one of their products a couple of weeks ago. So why wouldn't this phone just work on their network? Currently using it with my T-Mobile SIM it roams on the Rogers network so I assume that clearly states that the phone whould work with a Rogers SIM card, useless for me.
Is there anyway to get this phone to work with the Bell network? Would a custom ROM help in this situation?
Thanks!
Huh. I would not expect "no service" I would expect that you get 2G service but definitely not 3G.
I have used my unlocked TMOUS HD7 abroad and got 2G service in places w/o 2100 UMTS (similar to your situation Canada).
http://www.htcimeiunlock.com/
you could try the above site to unlock your phone
they worked for me was on O2 uk and got unlock code within less then 10 mins..
It wont work, as bell doesnt have a 2G GSM network bell uses it old CDMA network for 2G service and EVDO Rev A, for 3G along side its newly released HSPA+ network which runs on the 850Mhz band. As such a Tmobile US HD7 wont work with Bell, it will work on Rogers on its 2G GSM network. For you to use any new devices on Bell's HSPA network they would have to be from the following Carriers Telstra(Australia), ATT(USA), Rogers(CAN), Telus(CAN). Note for Telus they will have to be newer HSPA+ devices.
However as a side note you can run your TMobile HD7 on the new carriers, such as Videotron, WIND Mobile, Moblicity. All three carries use advance wireless service (AWS) frequencies.

[Q] Unbranded unlocked Milestone cannot connect to data service on AT&T or T-Mobile

[Q] Unbranded unlocked Milestone cannot connect to data service on AT&T or T-Mobile
I bought a M1 off Amazon about 5 months ago. I don't have a data plan in my home country as my SIM is company provided without data. I get by with wifi most of the time. Over Christmas while in Miami, I tried my nephew's T-Mobile SIM from his HTC and I tried an AT&T SIM with $5 data - and neither would connect to EDGE or 3G. The phone could still make calls though. Anyone have any idea why that would be? I have no clue as to what region the phone would belong to -so I do not know what GSM frequencies it operates on. Motorola's website specs says that the GSM version operates on 850/900/1800/1900 MHz - and supposedly AT&T 3G operates on 850 7 1900 MHz -so I can't figure it out. Could it be something software/firmware related?
It's a APN issue if you can make calls but cannot connect to mobile data. Check your provider's APN configuration. (Just google it.)
yeah. check your apn. for stock rom and some other mods apns cant be configured automaticly

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