[Q]Advantage of flashing a new radio when using a different carrier SIM?? - General Questions and Answers

1.) Once you have perm root and flash a custom rom you can use any SIM from any carrier correct?
I had a HTC Inspire from AT&T and running a custom rom put in a Tmobile SIM card and it worked but I had terrible reception.
2.) I also have a HTC Sensation from Tmobile that I just recently rooted and it wouldn't work with my At&t SIM. I understand this is due to the Tmobile rom on the phone and to have the at&t SIM work I'd need a custom rom or unlock the sim right?
I've read some about SuperCID but I understand that is only if you want to run another carriers rom (exp: run a european carriers standard sensation rom on a tmobile sensation) Is this correct?
3.) My main question is that since a phone's radio deals with how it interacts with wifi,gps and the carriers network wouldn't using a tmobile radio with a at&t SIM always give crappy performance and is there anything I can do about this? At&t doesn't have a radio for the sensation. Or am i looking at this all wrong?
Thank you for your help!

AT&T and T-mobile run off of different frequencies. The frequencies the phone uses does not change with the radio. When using a T-mobile phone with an AT&T SIM, you are only going to get edge (2G) speeds, and vice versa.

There is nothing to be done about this? Edge might as well be no data at all :/

mysongranhills said:
There is nothing to be done about this? Edge might as well be no data at all :/
Click to expand...
Click to collapse
Nope, nothing that can be done. There are some pentaband phones out that will get 3G/4G on both...galaxy nexus, and versions of the evo 3d and optimus 3d.

Please use the Q&A Forum for questions Thanks
Moving to Q&A

Related

what to do?

I have an unlocked tp and i talked with verizon trying to set it up to use it on there network and they say i cant use it with them even tho i have the good esn number and all? what should i do have you guys heard of this or was that guys just being stupid?
I think im going to resell it or trade it for a verizon version. if any one wants to trade for a sprint version thats unlocked and comes with many extras in the orignal bo x with a 1 gig card and the mighty rom with android I will sell or trade it for 160 its in great condition Davey
there are two types of wireless networks in the world: GSM and CDMA. your phone is GSM in hardware = can't be changed), and verizon's network is CDMA = not comaptible.
correct me if im wrong but the sprint is the cdma and the att is the gsm. this phone has mightys cdma rom on it. it would have bricked the phone if it was gsm right at least that is what all the info i have read has told me. I have even flashed it to the stock verizon rom which is cdma and it was fine. I have found a few pages in the wiki about how to use it on the verizon network i will try they look kinda complicated tho.
DadamsJR said:
correct me if im wrong but the sprint is the cdma and the att is the gsm. this phone has mightys cdma rom on it. it would have bricked the phone if it was gsm right at least that is what all the info i have read has told me. I have even flashed it to the stock verizon rom which is cdma and it was fine. I have found a few pages in the wiki about how to use it on the verizon network i will try they look kinda complicated tho.
Click to expand...
Click to collapse
sprint & verizon are cdma, t-mobile & at&t are gsm.
i haven't tried flashing a cdma rom on my fuze... i know it is highly unrecommended. but i am sure there is a way to tell if ur phone is gsm or cdma, probably by looking at the sticker under that battery.
Dad is correct.. Sprint is CDMA jsut like VZW... and there is an easier way to tell if it is GSM or CDMA..... Take off the batter cover.... Do you see a Sim Card? If Yes, then it is a GSM... If No, Then CDMA unless it is GSM and no sim card is in it.. then power it up... it will say SIM CARD MISSING... That will tell you that it is GSM.....
Hope that helps.
I know its cdma for a fact it has sprint across the front and it has a cdma rom on it

[Q] Sensation data problem

Can anyone help me. I unlocked the sensation for me to use with att. Everything is fine, rooted, s-off, cwm recover works, and so does everything else. Except data and mms. I googled the apns to use and that worked, somewhat. I now can recieve mms but data only gets up to 2g but roams a lot. Is there a way to get att 3g on this phone? I heard it was unable but just want to make sure
cGrumm said:
Can anyone help me. I unlocked the sensation for me to use with att. Everything is fine, rooted, s-off, cwm recover works, and so does everything else. Except data and mms. I googled the apns to use and that worked, somewhat. I now can recieve mms but data only gets up to 2g but roams a lot. Is there a way to get att 3g on this phone? I heard it was unable but just want to make sure
Click to expand...
Click to collapse
Did you get 3G before when the device was S-On and a stock image?
dr9722 said:
Did you get 3G before when the device was S-On and a stock image?
Click to expand...
Click to collapse
Yea when my cousin had it stock for tmobile everything was fine with it. 3g and 4g worked for him. Then when i started using it for att i had to put in custom apn which only allows me to reach 2g. I've seen a lot of people say its not compatible unless you have a certain version, my model is the tmobile htc sensation 4g...thats what it tells me in my phone settings.
cGrumm said:
Yea when my cousin had it stock for tmobile everything was fine with it. 3g and 4g worked for him. Then when i started using it for att i had to put in custom apn which only allows me to reach 2g. I've seen a lot of people say its not compatible unless you have a certain version, my model is the tmobile htc sensation 4g...thats what it tells me in my phone settings.
Click to expand...
Click to collapse
Learn more ablut radio and frequencys. Basically u cant get 3g unless u have a bell sensation
Sent from my HTC Sensation XE with Beats Audio using XDA App
cGrumm said:
Yea when my cousin had it stock for tmobile everything was fine with it. 3g and 4g worked for him. Then when i started using it for att i had to put in custom apn which only allows me to reach 2g. I've seen a lot of people say its not compatible unless you have a certain version, my model is the tmobile htc sensation 4g...thats what it tells me in my phone settings.
Click to expand...
Click to collapse
So from what you're saying the phone has worked fully on both 3G & 4G on the TMobile network. Looking at the AT&T website their all their phones are either 3G or 4G. So it should work.
Does your AT&T contract support 3G ? I know when I got my first 3G enabled phone they had to ship me a 3G SIM card for it to work. It might be that it's the SIM card that's the issue. I've never had to modify APNs etc. even when swapping network providers away from Vodafone. Insert the new SIM and it just works.
webstar1 said:
Learn more ablut radio and frequencys. Basically u cant get 3g unless u have a bell sensation
Sent from my HTC Sensation XE with Beats Audio using XDA App
Click to expand...
Click to collapse
Hmmmm
webstar1 said:
Learn more ablut radio and frequencys. Basically u cant get 3g unless u have a bell sensation
Sent from my HTC Sensation XE with Beats Audio using XDA App
Click to expand...
Click to collapse
Yea thats what im trying to understand. I read that there were two types of sensations, one from canada that supports att 3g, and the original which does not. But they said the model T-mobile sensation 4g, should support att 3g. Thats the thing im not understanding
gol_n_dal said:
So from what you're saying the phone has worked fully on both 3G & 4G on the TMobile network. Looking at the AT&T website their all their phones are either 3G or 4G. So it should work.
Does your AT&T contract support 3G ? I know when I got my first 3G enabled phone they had to ship me a 3G SIM card for it to work. It might be that it's the SIM card that's the issue. I've never had to modify APNs etc. even when swapping network providers away from Vodafone. Insert the new SIM and it just works.
Click to expand...
Click to collapse
Yea i had an Iphone 3gs with a 3g data plan. And everything ive seen posted with unlocked sensations all have the same problem with att. But ive seen that there is a version that supports att 3g which is what im trying to figure out
This post has the bands that the T-Mobile htc sensation 4g supports:
http://www.htc.com/us/products/sensation4g-tmobile#tech-specs
And this post says if it supports HSPA/UMTS/HSPA+ on 850 and 1900, it should support att 3g
http://androidforums.com/t/358106-unlocked-htc-sensation-4g-t-smart-phone-sim.html
The first post confirms that the phone supports both 850 and 1900 on HSPA+. All of this is new to me so if this is completely wrong then sorry. Just seems right to me.
It looks like the AT&T and T-Mobile networks are different, this is where I guess the issue is. The more I dug the worse it got. I have to admit that I'd assume this would be a simple answer but it looks like there are different flavours of 4G.
So apologies to the earlier poster that mentioned the frequencies.
cGrumm said:
Can anyone help me. I unlocked the sensation for me to use with att. Everything is fine, rooted, s-off, cwm recover works, and so does everything else. Except data and mms. I googled the apns to use and that worked, somewhat. I now can recieve mms but data only gets up to 2g but roams a lot. Is there a way to get att 3g on this phone? I heard it was unable but just want to make sure
Click to expand...
Click to collapse
T-Mobile US Sensation (Z710E) DOES NOT support anything higher than 2G on AT&T's networks because it doesn't operate on the proper 3G frequency. The Bell Sensation (Z710A) from Canada DOES work on AT&T 3G because its hardware uses the proper frequency.
Jimmah555 said:
T-Mobile US Sensation (Z710E) DOES NOT support anything higher than 2G on AT&T's networks because it doesn't operate on the proper 3G frequency. The Bell Sensation (Z710A) from Canada DOES work on AT&T 3G because its hardware uses the proper frequency.
Click to expand...
Click to collapse
I thought the Z710a is the US T-Mobile 4g version, My Z710e is a European 3G only version.
gol_n_dal said:
I thought the Z710a is the US T-Mobile 4g version, My Z710e is a European 3G only version.
Click to expand...
Click to collapse
See thats where im getting confused too. People said the version that CAN aquire att 3g is the t-mobile 4g model. But regardless it isnt picking up anything but edge so he is right. Is there anyway to change the hardware for it to work? I dont have money for another phone so if i can, id do that.
cGrumm said:
See thats where im getting confused too. People said the version that CAN aquire att 3g is the t-mobile 4g model. But regardless it isnt picking up anything but edge so he is right. Is there anyway to change the hardware for it to work? I dont have money for another phone so if i can, id do that.
Click to expand...
Click to collapse
Have you seen: http://forum.xda-developers.com/showthread.php?t=1349755
It refers to: http://www.gsmarena.com/htc_sensation_4g-3922.php
As far as I know Bell Canada uses the same network frequencies as AT&T US.

CM7 question on the radio unlocked

well hello my question is r simple, i want to know if the rom CM7's post with the radio unlocked i can use for the Droid Pro, but for the European version because here we use GSM / HSDPA
Changing ROM's does not affect the frequencies that the radio uses, nor does it render your phone unlocked for use overseas.
lowandbehold said:
Changing ROM's does not affect the frequencies that the radio uses, nor does it render your phone unlocked for use overseas.
Click to expand...
Click to collapse
u sure about that?
muska02 said:
u sure about that?
Click to expand...
Click to collapse
Positive. It is more evident in the united states since we deal with carriers and different frequencies and such. My T-mobile branded phone was rooted, running CM7. If I used an AT&T sim card, it would ask for an unlock code. I got my unlock code from HTC and with an AT&T sim I am only able to use 2G speeds due to different frequencies for 3G and 4G. You can change your radio, but not the frequencies that the radio utilizes.
One quick alibi though. There are some root methods, such as the G-free method, that can sim unlock your phone.
lowandbehold said:
Positive. It is more evident in the united states since we deal with carriers and different frequencies and such. My T-mobile branded phone was rooted, running CM7. If I used an AT&T sim card, it would ask for an unlock code. I got my unlock code from HTC and with an AT&T sim I am only able to use 2G speeds due to different frequencies for 3G and 4G. You can change your radio, but not the frequencies that the radio utilizes.
One quick alibi though. There are some root methods, such as the G-free method, that can sim unlock your phone.
Click to expand...
Click to collapse
then I can put the rom, but my problem would be the frequencies used by radio stations? there is some method to this?
It is not so much an issue for you because companies overseas use the same frequencies...you just wouldnt be able to purchase a sprint, tmobile or verizon branded phone..
lowandbehold said:
It is not so much an issue for you because companies overseas use the same frequencies...you just wouldnt be able to purchase a sprint, tmobile or verizon branded phone..
Click to expand...
Click to collapse
ok thanks for ur help

Non T-mobile Sensation on T-mobile network

I've been keeping my eye out for used Sensations to replace my Samsung Galaxy S 4G. The big attraction to me is being able to run ICE.
I have a pre-paid plan with T-mobile. I see some Sensations offered that were meant for Canadian or European Carriers but are unlocked.
I know they will work on T-mobile at 3G GSM, but will they make use of T-mobil's "4G" HSPA+ like the T-mobile badged models?
Also, how about ROM's? Will developer ROMs for the T-mobile version work on those?
If you get one and have any issues then you can simply change your CID for TMOUS or supercid and then flash the 1.50.531... RUU.
There are no hardware differences so you'll be fine.

[Q] Can the Unlocked International version be hacked to work on Tmobile

I know the AT&T Samsung galaxy note was hacked to work on the 1700mhz T-mobile network. Can anyone tell me if this is feasible on for the unlocked international One S ?
We in the rest of the world uses WCDMA... you americans use CDMA... BIIIIIIG difference.
Thiesen, I guess you have a complete misconception there.
Sprint and Verizon use CDMA.
T-Mobile & AT&T use good ol' GSM/WCDMA, so if the phone has the right radio frequencies, it will work.
the hardware between the two devices are exactly the same right ??
So the only difference needed will be the correct radio in order for it to work ??
I have the international (UK) mine supports GSM / WCDMA - so if thats what TMOUS Uses, it shouldnt be a problem ?
The internation version doesn't have the 1700 AWS band (for T-Mobile) or the 1900 band (for AT&T).
No idea why HTC would suddenly eliminate the 1900 band, especially as it has always been present on their phones.
As far as I know, the Galaxy Note works on T-Mobile because it has always had the bands needed, they were just disabled. I guess the question is, does the international One S have the bands and they're disabled, or does it not have the bands at all?
The chip inside the phone is capable of all bands. the issue its turning them on.
nickmgray said:
The chip inside the phone is capable of all bands. the issue its turning them on.
Click to expand...
Click to collapse
If this is the case all you need to do is flash a T-Mobile radio really. However to do that you need S-Off
Sent from my GT-I9100 using xda premium
joshnichols189 said:
If this is the case all you need to do is flash a T-Mobile radio really. However to do that you need S-Off
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
No no no no no no no, just a tmo ruu. if you have a tmo ruu then the radio is on their.
TramainM said:
No no no no no no no, just a tmo ruu. if you have a tmo ruu then the radio is on their.
Click to expand...
Click to collapse
I am not sure what a "ruu " is were can I get it, and how would I apply it to the phone ?
Thanks
its a rom upgrade utility..
you download in in a .exe format, and your computer flashes the rom onto your phone.. Its a complete image including kernel, radio, rom, the lot.
there arent many ruu's available yet, as the phone has just been released.
http://forum.xda-developers.com/showthread.php?t=1543588

Categories

Resources