I need some technical help; I want to purchase a SONY xperia SX or praying a 850/1900 shows up soon as I doubt the nexus variant will be this small (if it even will come).
However the spec sheet shows that:
LTE 2100 (Band I)
HSPA+ 800 (Band VI), 800 (Band XIX), 2100 (Band I) GSM 850/900/1800/1900
I want to use the phone on AT&T HSPA which is Band II (1900) and Band V (850) <-this one
This WONT work right even though Band VI and XIX are narrower in TX/RX than Band V? I don't want to spend $900 and be stuck using this phone on 2G/EDGE only. Stupid bands.
please forgive me as I posted in the arc s q&a but I never got a reply. i figure there are enough technical minded folk here that can answer my question.
T-Mobile USA
Similar question as OP, except for bands on T-Mobile (1700MHz & 2100MHz needed for 4G). I use an SE Xperia Ray (ST18a) on T-Mobile US, but only get 2G. It is adequate for now. Was wondering if I would be losing ALL data functionality or might gain some with the Sony Xperia SX SO-05D.
Thanks!
I have one!
I live in Japan and have just purchased an SX.
If there is anything I can do with the handset to answer your questions let me know how.
I am experienced in the fact i can follow forum instructions quite well (have rooted/Jailbroken/flashed custom firmware etc on mine and my friends' phones) but a newbie in the fact I have never coded, made my own ROMs etc.
As this is a Japan exclusive phone I really want to know if I am going to be able to flash custom ROMs etc? It seems there is already a "one-click root" on the Japanese forums but CWM isn't fully working yet and i don't know if they will develop ROMs or port CyanogenMod to it.
Seeing as SE are really unreliable with updates I would like to have a failsafe in case they dont release any. How would I go about porting CM10 for example myself? Is it something only an experienced coder can do?
Many thanks in advance.
As I previously wrote: http://forum.xda-developers.com/showthread.php?p=39144776#post39144776
I have been using an SX on AT&T in the USA for a couple months. LTE does not work but HSPA seems OK. Using speedtest.net, I have seen over 4 Mbps but usually it is much closer to 1 Mbps in practical use. That's a far cry from the theoretical maximum for HSPA, but it's pretty fast.
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Hello,
The title says it all really. Wondering if the Amaze would work here on T-Mobile Austria which uses UMTS 2100. I read somewhere else that it relies on 1700 and 2100 for upload/download. Don't much about how this works.... or can the phone do both on the 2100 band? I sort of prefer it to a normal Sensation available here because it has NFC. Not that it has much use as of now....
EDIT: on Wiki it appears that T-Mobile Austria uses 1900 for upload and 2100 for download so I guess it wouldn't work.
Lawk said:
Hello,
The title says it all really. Wondering if the Amaze would work here on T-Mobile Austria which uses UMTS 2100. I read somewhere else that it relies on 1700 and 2100 for upload/download. Don't much about how this works.... or can the phone do both on the 2100 band? I sort of prefer it to a normal Sensation available here because it has NFC. Not that it has much use as of now....
EDIT: on Wiki it appears that T-Mobile Austria uses 1900 for upload and 2100 for download so I guess it wouldn't work.
Click to expand...
Click to collapse
I'm also interested in this.
I live in italy and I'm not sure it's working in europe. Generally t-mobile's phones works in italy, but I want to be sure before I buy
Metallaro said:
I'm also interested in this.
I live in italy and I'm not sure it's working in europe. Generally t-mobile's phones works in italy, but I want to be sure before I buy
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Click to collapse
it should, considering the network bands are the same as usual...
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Those are three bands listed on my box. Shows 1900 so I'm guessing it would work.
Sent from my HTC_Amaze_4G using XDA App
You will be able to use the HTC Amaze to place calls pretty much anywhere in the world since it's quad-band.
For 3G however, the box indicates only UMTS bands AWS & 2100. So you just have to check if your carrier uses one of those bands for 3G (you can look at this page for example). As you can see, the phone will work in 3G pretty much everywhere in Europe.
Some carriers however use UMTS bands 2100 and 900. The 900 Mhz frequency has a wider coverage area and is quite cheap to set up since the carriers can use existing GSM antennas (with some modification of course). If your carrier is listed as using "900/2100", it basically means you'll only have 3G in densely populated areas (where UMTS 2100 is used) but not in remote areas (where UMTS 900 is used). Both frequencies' coverage maps should be available on your carrier's website.
Lawk and Metallaro: 900 Mhz doesn't seem to be in use in Austria nor in Italy, so you should have full 3G coverage with the HTC Amaze (unless Wikipedia is wrong of course).
Ok, thanks to all
I am planning to buy an unlocked Xperia Neo. But there are two version MT15a and MT15i, for US version and International version, respectively. I wanna know what are the difference between these two versions. And I live in USA(my phone service is T-mobile) , can i still use MT15i? Are the chargers for both same?
Thank you so much!
Neo112011 said:
I am planning to buy an unlocked Xperia Neo. But there are two version MT15a and MT15i, for US version and International version, respectively. I wanna know what are the difference between these two versions. And I live in USA(my phone service is T-mobile) , can i still use MT15i? Are the chargers for both same?
Thank you so much!
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It's on page 6 of this document:
http://dl-www.sonyericsson.com/cws/download/1/922/664/1315210962/neo_WP_6.pdf
If the chargers are the same depends on where you buy it. It will be sold with a British charger if you buy it in the UK, but the MT15a will likely have an American charger.
I is for europe.
Might not work in usa, difrent network signal.
Sent from my LT15i using XDA Premium
Thanks for all responses!
I have an unlocked MT15a because i live in Latin america, and those are the bands that works over here, however, i'm going to spain for three months, and i was wondering if i could change the 3g bands on my device to work with the european bands. or in other words, turn my MT15a device to an MA15i.
My previous device was a Motorola Milestone, and this was possible via openrecovery.
I think my #2 post is also relevant for you, search if they use the one of the supported frequencies by MT15a in Spain
redondogabriel said:
I have an unlocked MT15a because i live in Latin america, and those are the bands that works over here, however, i'm going to spain for three months, and i was wondering if i could change the 3g bands on my device to work with the european bands. or in other words, turn my MT15a device to an MA15i.
My previous device was a Motorola Milestone, and this was possible via openrecovery.
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I think it will work. In Spain we use the 900/1800 band
From Wiki:
"Africa, Europe, Middle East and Asia
In Africa, Europe, Middle East and Asia, most of the providers use 900 MHz and 1800 MHz bands. GSM-900 is most widely used. Fewer operators use DCS-1800 and GSM-1800. A dual-band 900/1800 phone is required to be compatible with almost all operators. At least the GSM-900 band must be supported in order to be compatible with many operators."
I've been searching high and low for a phone that will work on both T-mobile and AT&T. The Galaxy Nexus was going to be my choice, but it has way too many problems (screen being the biggest issue).
I found this version of the Razr Maxx which says that it has bands for both AT&T and T-Mobile. My question to you guys is this: If I buy this phone, will I be able to use it and get full 3G (HSPA+) speeds on either carrier?
http://www.clove.co.uk/motorola-razr-maxx
Thanks!
After doing some more research, it seems that the phone has to have 1700/2100 bands in order to work on T-Mobile.
The phone has 2100 band. Does this mean that T-Mobile 3G HSPA will work only when the area has that band, or not at all?
That model runs on :
GSM/GPRS Yes
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Frequencies850/900/1800/1900 MHz
and/or
3G/HSPA Yes
Frequencies2100/1900/900/850 Mhz
So YES, that model WILL WORK on ATT/TMO. Both companies have roaming agreements with each other and other companies which would allow your device to work if and when you are within a coverage area. NOT ALL features may work in certain areas AND data may be a certain speed in 1 area and in another it may be MUCH MUCH SLOWER due to the fact that it is using your 2G/GSM bands because there is no 3G/HSPA aka HSPA+ aka 4G (aka by ATT and/or TMO). This particular model CANNOT AND WILL NOT ever get true 4G/LTE.
Hope this helps...
Thanks for the answer. After doing a lot of research, I've learned that it WILL work for AT&T 3G/"4G" speeds, and will NOT work for T-Mobile 3G/"4G" speeds.
Reason being is that even though it has the 2100 band, it doesn't have the 1700 band, which T-Mobile requires for full HSPA speed. It uses one for uplink and the other for downlink. So even though it has one of the bands, I'll never be able to get full speed 3G on it.
ajm786 said:
Thanks for the answer. After doing a lot of research, I've learned that it WILL work for AT&T 3G/"4G" speeds, and will NOT work for T-Mobile 3G/"4G" speeds.
Reason being is that even though it has the 2100 band, it doesn't have the 1700 band, which T-Mobile requires for full HSPA speed. It uses one for uplink and the other for downlink. So even though it has one of the bands, I'll never be able to get full speed 3G on it.
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Click to collapse
after many years of following this stuff, and as a user of both tmo & att services, i must say you are exactly correct! i vaguely recall reading about a pentaband phone in development that would do 3g on both services, but lost track of whether it ever came to market
edit: turns out pentaband phones exist:
forums.androidcentral.com/android-hardware/170487-pentaband-phones.html
i'm surprised the RAZR wasn't developed as penta...
I'm seriously considering the LG G5 Model RS988 that you can get on Amazon because it's cheaper and easier to get that at AT&T or Best Buy, but will that version work with AT&T LTE Bands? AT&T LTE bands are 2,4,5,12,29, and 30. I see that the RS988 model doesn't have bands 29 and 30. Will that affect AT&T LTE performance? Please let me know. I want to get the phone in the next day or two. Thank you in advance for your help!!!
You can always check the bands that the device supports, though, yes it does.
But is band 29 and 30 critical for LTE on AT&T?
junodragon said:
But is band 29 and 30 critical for LTE on AT&T?
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No its not just don't change your imei from the phone you have right now
I wasn't going to change anything. I was just going to pop in my nano-sim from my Iphone and it should work automatically right? Or do I need to do anything else?
junodragon said:
I wasn't going to change anything. I was just going to pop in my nano-sim from my Iphone and it should work automatically right? Or do I need to do anything else?
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Nope. That's the beauty of GSM carriers.
also it has band 17..... which Att uses alot too, which is used lot in southern Michigan where I lived, but I use Cricket wirless which uses the same towers, I ordered my RS model from Amazon about hour ago and will be here tomorrow:good:
2003vstrom said:
also it has band 17..... which Att uses alot too, which is used lot in southern Michigan where I lived, but I use Cricket wirless which uses the same towers, I ordered my RS model from Amazon about hour ago and will be here tomorrow:good:
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Just received mine off Amazon this morning and confirm after changing the apns my LTE is working awesome! Faster then my 6S was.
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Sent from my RS988 using Tapatalk
No LTE love for me...
I would love my RS988 to get LTE on ATT... I switched from Cricket which has LTE on it, to ATT GoPhone and I only get a max of HSPA+. I can scan for networks and click on ATT LTE but it just fails to register. ATT support said they cannot force it to work because their system shows my IMEI as an unknown manufacturer. ... what?
I already have the same APN settings as listed. I would LOVE some help with that!
Does the Zenfone 9 officially "support" T-Mobile 5G? I believe the answer is NO, and that's why 5G is disabled by default. With 5G enabled on my phone, I frequently encounter a complete lack of mobile data, even though the phone is showing full signal. I believe there are certain carrier aggregation combos that the phone is using, that T-Mobile doesn't support (and/or vice versa).
Users on Reddit have noted that the following two 5G CA modes do not work on this phone:
* n41 NSA
* n41_n71 SA CA
https://www.reddit.com/r/zenfone/comments/y47z51
It seems like if you're going to try to use this phone on T-Mobile you NEED to disable 5G.
I have also seen people state that if you are rooted, you can edit QPST (carrier_policy.xml) to disable n41 entirely and it mostly "solves" the problem.
Seems like this is a pretty big problem with this phone that no one is really talking about.
I get T-mobile 5G, but only after dialing *#*#ENHANCED4G#*#* and toggling the 4G Calling option after each reboot and I don't need to reboot that often.
T-mobile US VoLTE 5G mobile data instability fix with root
I was having problems with mobile data through T-mobile in the US that I was have to disallow 5G or else the carrier connection would drop. Sometimes it would reach 4G+, but it would drop the mobile data connection all the time, especially when...
forum.xda-developers.com
Another update.... Lots of people tell me their calls to me go directly to voicemail, so I did some testing. Sitting at home, with very very good 5G coverage, about 25% of the time, when I placed test calls to myself (from another cell phone) the phone would not even ring, just go directly to voicemail. Same problem on wifi calling on my rock solid 1gbps/1gbps network.
If I disable 5G (use 4G only), the problem is solved.
This phone DOES NOT properly support T-Mobile 5G.
I have T-mobile and have been using Zenfone 9 (US version which is C version I believe).
Phone does support 5G for T-mobile, as you can see below. What Zenfone does not support is mmwave 5G which are on bands 258, 260 and 261 from Tmobile. That is also known as 5G UC (ultra capacity) which is usually 250-300-350Mbps network speed.
Just earlier today I measured my speed in Chicago where I had 5G+, and it came back at 192Mbps.... Now which is exactly this 5G+ band, I have no clue, but all above listed is my personal experience, and I live in Chicagoland...
Check your coverage area, and try to get Tmobile to provide you exact information on what the network band is used for the area where you live... That may be the resolution to your issues where you do not have 5G...
Btw: where I live there is just normal 5G but speeds from Tmobile are about 30Mbps for 5G and on the 4G I get about 20Mbps... I can tell you for a fact there is not much difference in what that 20Mbps does for you, while 5G is just tiny bit faster that is all...
My next phone will be Samsung S23+ or Ultra because Samsungs support ultra capacity 5G and are certainly faster on 5G UC than anything I have seen before on mobile phones.
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