I am using an att branded s9 on t mobile. I have successfully flashed to t mobile firmware, so wi fi calling works. When I compare the bands supported there are many differences between the two phones.
(https://www.techwalls.com/samsung-galaxy-s9-sm-g960-g965-model-number-differences/)
Is there any practical difference in the performance of these phones on t mobile network?
joelcop said:
I am using an att branded s9 on t mobile. I have successfully flashed to t mobile firmware, so wi fi calling works. When I compare the bands supported there are many differences between the two phones.
(https://www.techwalls.com/samsung-galaxy-s9-sm-g960-g965-model-number-differences/)
Is there any practical difference in the performance of these phones on t mobile network?
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Yes, and it also will depend on where you live. Some T-Mobile bands are not supported on the ATT version of the phone, so it's possible your signal/data could be weaker or slower depending on what the strongest bands are in the area. The ATT version also does not support the 600mhz band which is T-Mobile's new "big thing" they are rolling out. But if your phone is working and you are happy with it everywhere you go, I wouldn't worry too much. Maybe you can find someone with a Tmo S9 and just do some speed test/signal strength comparisons based on where you are.
Nightwind Hawk said:
Yes, and it also will depend on where you live. Some T-Mobile bands are not supported on the ATT version of the phone, so it's possible your signal/data could be weaker or slower depending on what the strongest bands are in the area. The ATT version also does not support the 600mhz band which is T-Mobile's new "big thing" they are rolling out. But if your phone is working and you are happy with it everywhere you go, I wouldn't worry too much. Maybe you can find someone with a Tmo S9 and just do some speed test/signal strength comparisons based on where you are.
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thanks I'll try that
Related
Guys, I need help understanding whether or not the phones branded and sold by AT&T and T-Mobile are really the same hardware or not.
I'm in the U.S. I have a carrier-unlocked M9 originally sold by AT&T that is running the Developer's Edition ROM which I flashed via the DE RUU. I decided to get a plan on T-mobile temporarily so I could compare them to AT&T as far as performance and coverage is concerned. The phone recognized the new SIM and prompted me to select my carrier, which I did (T-mo) and I had good voice service, LTE coverage, etc. All sounds good so far, right?
Well, I was at work the other day and my friend has the S6 on T-mobile which he got from T-mobile. So we each did an LTE speedtest while we were both standing in the same spot and his speeds were consistently faster than mine. There was enough of a difference that it was obvious, meaning, like, if I was getting 20MBps down, he was getting 30. Or if I was getting 30MBps down he was getting 40. Something like that.
So, what is your opinion? Is the S6 just built with a faster set of hardware? Or, could my M9 not be 100% compatible with all of T-Mo's LTE bands? I am not that familiar with the subtle differences between these two carriers but clearly the M9 was able to recognize each carrier at least well enough to prompt me to select the right Carrier when the SIM is changed. I am currently under the impression that HTC makes phones for North America and not necessarily any carrier-specific variants (unless like, in order to support carriers using CDMA vs GSM.) Does anyone have more specific details?
If it matters, we're in the Denver, CO market.
If anyone knows of an app that can report on the current LTE status and give you the specific band you're leveraging, please LMK as that'd also be very useful.
cheers.
mrbillishere said:
Guys, I need help understanding whether or not the phones branded and sold by AT&T and T-Mobile are really the same hardware or not.
I'm in the U.S. I have a carrier-unlocked M9 originally sold by AT&T that is running the Developer's Edition ROM which I flashed via the DE RUU. I decided to get a plan on T-mobile temporarily so I could compare them to AT&T as far as performance and coverage is concerned. The phone recognized the new SIM and prompted me to select my carrier, which I did (T-mo) and I had good voice service, LTE coverage, etc. All sounds good so far, right?
Well, I was at work the other day and my friend has the S6 on T-mobile which he got from T-mobile. So we each did an LTE speedtest while we were both standing in the same spot and his speeds were consistently faster than mine. There was enough of a difference that it was obvious, meaning, like, if I was getting 20MBps down, he was getting 30. Or if I was getting 30MBps down he was getting 40. Something like that.
So, what is your opinion? Is the S6 just built with a faster set of hardware? Or, could my M9 not be 100% compatible with all of T-Mo's LTE bands? I am not that familiar with the subtle differences between these two carriers but clearly the M9 was able to recognize each carrier at least well enough to prompt me to select the right Carrier when the SIM is changed. I am currently under the impression that HTC makes phones for North America and not necessarily any carrier-specific variants (unless like, in order to support carriers using CDMA vs GSM.) Does anyone have more specific details?
If it matters, we're in the Denver, CO market.
If anyone knows of an app that can report on the current LTE status and give you the specific band you're leveraging, please LMK as that'd also be very useful.
cheers.
Click to expand...
Click to collapse
in a nutshell T-mobile branded phones use an AWS band that is not present on the AT&T and Developer edition phones
This AWS band is a 3G+ or 4G band that is faster than some LTE signals in certain markets.
The big factor in doing Speedtest.net is are you both connecting to the same server for the test
go to settings and change server to say Atlanta (comcast) and see if you both get different speeds
Will I lose any lte band support if I convert to tmobile?
Yes, flashing T-Mob US (I assume you mean US, since you are talking AT&T) firmware or RUU will change band support, and you will lose some LTE bands.
According to the specs on GSMarena, with the T-Mob firmware, you will have support for LTE bands 4 and 17; and will lose support for 2, 5, and 7.
What bands do you need, and what carrier are you using?
Tmo USA
What if I merely flash a tmobile based rom
PunishedSnake said:
Tmo USA
What if I merely flash a tmobile based rom
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Just flashing the ROM, you won't change the band support.
But again, I'm curious what carrier you are actually using the phone on?
redpoint73 said:
Just flashing the ROM, you won't change the band support.
But again, I'm curious what carrier you are actually using the phone on?
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Tmobile USA
I installed insertcoin and used the tmobile setting hopefully it works
PunishedSnake said:
Tmobile USA
I installed insertcoin and used the tmobile setting hopefully it works
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Click to collapse
Should work fine.
Being on T-Mob US, and using AT&T radio baseband (part of the firmware that determines band support) should be fine for the most part. Reason I say this is:
1) ATT radio supports the same LTE bands as the T-Mob radio (4 and 17), and then some.
2) ATT radio is missing HSPA (3G) Band 4 (AWS). This used to be the band most widely used by T-Mob for 3G. But my understanding, is that they are well underway in migrating 3G service to 1900 MHz (Band 2) which is supported by the ATT radio.
3) The only "negative" to staying on the ATT radio, that I can see, is that if you happen to be in area where T-Mob is still using AWS for 3G , and you don't have LTE service in that area, either. In that instance, your data will drop down to EDGE (2G). I don't really have an idea of how widespread this situation may be; but I have a feeling its relatively small.
redpoint73 said:
Should work fine.
Being on T-Mob US, and using AT&T radio baseband (part of the firmware that determines band support) should be fine for the most part. Reason I say this is:
1) ATT radio supports the same LTE bands as the T-Mob radio (4 and 17), and then some.
2) ATT radio is missing HSPA (3G) Band 4 (AWS). This used to be the band most widely used by T-Mob for 3G. But my understanding, is that they are well underway in migrating 3G service to 1900 MHz (Band 2) which is supported by the ATT radio.
3) The only "negative" to staying on the ATT radio, that I can see, is that if you happen to be in area where T-Mob is still using AWS for 3G , and you don't have LTE service in that area, either. In that instance, your data will drop down to EDGE (2G). I don't really have an idea of how widespread this situation may be; but I have a feeling its relatively small.
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Yea thats why I got an unlocked ATT m8 instead of a tmobile one for the extra lte bands. I have yet to run into band 2 lte and all the aws hspa has been reused for lte. Luckily.
Is it possible? I'm with MetroPCS and get about 80% of their frequencies but I'm short a few bands. Anyone on the same boat as me?
someeh said:
Is it possible? I'm with MetroPCS and get about 80% of their frequencies but I'm short a few bands. Anyone on the same boat as me?
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I'm with T-Mobile and the phone works great with no band issues-even better than my S7 edge Tmo.
Mr. Clown said:
I'm with T-Mobile and the phone works great with no band issues-even better than my S7 edge Tmo.
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I know MetroPCS uses their network. Have you done the frequency check to see if you're getting all their bands, for t mobile I mean? I have attached the bands that the mate supports on Metro but would like to enable the ones that aren't.
someeh said:
I know MetroPCS uses their network. Have you done the frequency check to see if you're getting all their bands, for t mobile I mean? I have attached the bands that the mate supports on Metro but would like to enable the ones that aren't.
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I don't think the Mate phone (or any honor 7x version) have the hardware capabilities for band 66 or 71. If the phone was exclusively for T-Mobile, I bet Huawei probably equipped at least their flagships with them. Below you can see all the supported bands from all the Honor 7x versions.
https://www.gsmarena.com/huawei_honor_7x-8880.php#l24
For me, even if the phone had either band 66 or 71 dunno if T-Mobile have deployed these frequencies where I live. I either get band 4 or 12 and is incredible fast (100 Mbps download).
ugh i totally want to know how to unlock all those bands
This phone becomes useless when you travel to Europe especially with LTE as major bands used in Europe aren't supported on US models.
this is very frustrating.
If you have Verizon and you get an Exynos international model in the USA, what would be the practical difference or issues you may experience?
Of course, the reason to get Exynos is for the unlocked bootloader.
Supposedly Exynos won't support any CDMA bands, so you'll only have service under LTE. However, looking at the 4G map for Verizon it's a solid color, so shouldn't this mean you shouldn't really have any loss of reception since you can just stay using LTE always?
How about internet speeds? Would there be any difference?
Are there any other practical differences?
zxzxzxzxzxzxzxzxzx said:
If you have Verizon and you get an Exynos international model in the USA, what would be the practical difference or issues you may experience?
Of course, the reason to get Exynos is for the unlocked bootloader.
Supposedly Exynos won't support any CDMA bands, so you'll only have service under LTE. However, looking at the 4G map for Verizon it's a solid color, so shouldn't this mean you shouldn't really have any loss of reception since you can just stay using LTE always?
How about internet speeds? Would there be any difference?
Are there any other practical differences?
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No warranrlty and not being able to walk into a repair center anywhere in the US.
Im using the 975F on ATT at the moment. the 975F is missing band 30, which ATT uses in cities. It is a real headache. Signal is poor, data speed is sometimes non-existent etc.
I notice Sprint and Verizion's LTE bands are all covered by the 975F. At the same time, the 3G bands are not. I am interested to know if anyone out there uses the 975F on either Sprint or Verizon, and what the experience is like.
thanks
I'm using SM-N975F/DS SIN on Verizon with no problems
Really? without any issues at all? LTE works fine? Because it is the exynos version I thought it wouldnt work with the international version
c2gemineyes said:
I'm using SM-N975F/DS SIN on Verizon with no problems
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You get LTE. What about 3G.