Develop Bugs

[Q] O2 Xperia Play...R800i/R800a/R800at, which one?

Hi guys...just curious if anyone here have bought the phone from O2? Would love to know if the one u get is R800a or R800at rather than R800i (which is most probably not the case rite?)? I'm travelling to the US a lot and the network interoperability is the issue here. Would love to have the phone coz I could kill a lot of time during flights and stuff but 3G is a real issue here coz my trip is usually for work so e-mail/web is ultimately unavoidable -_-''

Unless I'm mistaken, the R800a and R800at (not even released anywhere), are sold only in North America - in Canada or on eBay. I think everywhere else gets the R800i. And the R800i is definitely not 3G capable in the US. It will only work on EDGE.

O2 Uk/IE/GER etc will be the R800i be it generic or with their own bloatware.
as stated R800a and R800at are US/Canada. Not sure what the model in Asian markets is.
European market is always an i with Sony Ericsson

Some people have the r800x
Sent from my R800i using XDA App

Nhialor said:
Some people have the r800x
Sent from my R800i using XDA App
Click to expand...
Click to collapse
R800x is Verizon Wireless, 'a' is always Americas with SE and at is AT&T device.
Still not sure of model number in Asia (Japan) market

Fwiw, the "AT&T" variant they gave out at Google I/O is the R800a.
Which of course doesn't mean the AT&T consumer model will be anything similar if/when such a thing exists.

iconoclastnet said:
Fwiw, the "AT&T" variant they gave out at Google I/O is the R800a.
Which of course doesn't mean the AT&T consumer model will be anything similar if/when such a thing exists.
Click to expand...
Click to collapse
It does exist
Sent from my R800at using XDA Premium App

thanks guys....just in case if there's any one found an odd case (e.g. in europe but got R800a/at), pls post here...would be great to learn of those stuff...lol

Mine is an att play. Has the boot with att images and apps. Just wish I could root it but comes on 2.3.3 so no luck yet
Sent from my R800at using XDA Premium App

I think japan is also the r800i the only ones with custom models are the Usa - R800a, R800at, R800x and china z1i? Everyone else seems to have got the r800i

I know this is an old forum, but.......
can anybody tell me the differences between the models? well i suppose i dont want all the differences; the main thing i want to know is:
will the digitizer for an r800i work for and r800a? i have a strong feeling it will and a little bit of evidence that shows that it should, but i thought i would ask to see if anybody else would know. thanks.

vladimirhtg said:
I know this is an old forum, but.......
can anybody tell me the differences between the models? well i suppose i dont want all the differences; the main thing i want to know is:
will the digitizer for an r800i work for and r800a? i have a strong feeling it will and a little bit of evidence that shows that it should, but i thought i would ask to see if anybody else would know. thanks.
Click to expand...
Click to collapse
Someone can probably back me up or correct me but I think really the only difference between the models is just the region they come from(The r800x is a Verizon Wireless version and it is stock android vs the Sony skinned one the r800i or r800a has)

R800a
UMTS HSPA 800 (Band VI), 850 (Band V), 1900 (Band II),
2100 (Band I)
GSM GPRS/EDGE 850, 900, 1800, 1900
R800at
UMTS HSPA 800 (Band VI), 850 (Band V), 1900 (Band II),
2100 (Band I)
GSM GPRS/EDGE 850, 900, 1800, 1900
R800i
UMTS HSPA 900 (Band VIII), 2100 (Band I)
GSM GPRS/EDGE 850, 900, 1800, 1900
R800x
CDMA2000®, cdmaOne, EVDO

I live in the UK and have an O2 Xperia Play. Its an r800i and now its unlocked.

[Q] 850 MHz HSPA on Sony Ericsson Xperia X10i

Hi all,
I have a Sony Ericsson Xperia X10i, but it does not support (activated) HSPA 850 Mhz networks. Is it possible to activate this? I know that the Xperia X10a does support 850 Mhz. Is the 850Mhz HSPA option locked by software. If so, how can it be unlocked.
It's a really great phone. I already use this phone on 2G and want to switch to 3G.
Help please.
Winston

Unfortunately, like most cases of this, it is a hardware limitation. This is why they made two completely different models (X10a and X10i). It isn't just software that controls it, but it goes right down to the cellular radio in the phone itself.
Your best bet is to either switch to a network that supports the bands of the X10i (T-Mobile USA and Wind Mobile in Canada) or sell the device. I am sure some people who do use T-Mobile might be interested in the X10i as it works on that 3G network.

Thanks a lot for your quick reply. So now i know i don't have to research the internet for a solution. In my country Suriname, there is only one 3G provider, unfortunately on 850 Mhz).

Is there really 2 versions of xperia s? (lt26i and lt26a)

In the development thread DooMLoRD mentioned that the phone comes in two versions. There seems to be confilicting info about this. I have seen sites say it is quad band HSDPA and there is not 2 different models and only the lt26i. I would like to import to the USA and use on ATT 3g. It looks like the lt26i will work on att 3g. Below is the info listed in the development section of the site.
Model number:
The Xperia S has model number as LT26 and has two models LT26i and LT26a. They differ in the spectrum of frequencies supported for 3G/WCDMA http://www.gsmarena.com/sony_xperia_s-4369.php
LT26i - HSDPA 900 / 2100
LT26a - HSDPA 850 / 1900 / 2100
The items passing the fcc was the LT26i and it was listed at quad band UMTS/HSDPA
https://fjallfoss.fcc.gov/oetcf/eas...alledFromFrame=N&application_id=917709&fcc_id
It is also mentioned in this engadget article
http://www.engadget.com/2012/01/27/sony-xperia-s-jogs-past-the-fcc-carrying-plenty-of-atandt-t-mobi/

I've pre-ordered the Xperia S LT26i from here. If you scroll down a bit and switch to the specification tab you'll see this:
GSM/GPRS Yes
Frequencies 850/900/1800/1900 MHz
Speed GPRS up to 86kbps, EDGE up to 237 kbps
3G/HSPA Yes
Frequencies 850/900/1900/2100 MHz
Speed HSDPA Up to 14.4Mbps, HSUPA Up to 5.8Mbps
Click to expand...
Click to collapse
It seems like it supports both frequencies... It'll surly work in Europe right? I live in Israel using Cellcom, I hope it'll work fine.

I am wondering the same thing too!
I live in Canada and I want to get this phone but I know Canada will be the last to get it.
Is the ' i ' version going to work for me in Canada?
Please help!
Thank you.

check the Xperia S whitepaper
http://dl-www.sonymobile.com/cws/download/1/105/035/2/1327908899/Xperia_S_WP_2.pdf
"LT26i UMTS HSPA 850 (Band V), 900 (Band VIII), 1900 (Band II),
2100 (Band I)
GSM GPRS/EDGE 850, 900, 1800, 1900"

so it's safe to say there is going to be only one version?
if so, I will order my Xperia S and start using it in Canada!!

From what I have seen for the last three months, only one version which is quad band. Today I ordered one from ebay shipping from Hong Kong and I should be receiving it next week sometimes around Thursday. I will report back once I have it.
EDIT:
for people interested, this is the place I ordered it from http://www.ebay.com/itm/Sony-Ericsson-Xperia-S-LT26i-Unlocked-12mp-32GB-Android-Phone-White?item=150770279921&cmd=ViewItem&_trksid=p5197.m185&_trkparms=algo%3DRPSI%252BSIC.NPJS%26itu%3DUCP%252BUA%252BMAGEXP%252BI%26otn%3D12%26pmod%3D190644185862%26po%3DLPV%252BLVI%26ps%3D63%26clkid%3D6745036511139896139#ht_3032wt_1396

wing_zero8556 said:
check the Xperia S whitepaper
http://dl-www.sonymobile.com/cws/download/1/105/035/2/1327908899/Xperia_S_WP_2.pdf
"LT26i UMTS HSPA 850 (Band V), 900 (Band VIII), 1900 (Band II),
2100 (Band I)
GSM GPRS/EDGE 850, 900, 1800, 1900"
Click to expand...
Click to collapse
This.
White paper clearly states HSPA 850/1900 is included. And FWIW GSMArena corrected the specifications page to reflect this http://www.gsmarena.com/sony_xperia_s-4369.php

LaughinGoh said:
so it's safe to say there is going to be only one version?
if so, I will order my Xperia S and start using it in Canada!!
Click to expand...
Click to collapse
I have ordered one from Clove in the UK. It should be shipped Mon or Tue.
I will report back once I either trim down my SIM card or buy a micro SIM.
I am on Telus now running an unlocked generic Xperia Arc.
Cheers

I can confirm it is a quad band. It supports UMTS/HSPA Bands 1/2/5/8. See screenshot from my service menu.
PS: the phone is unbelievably awesome.

I know this thread is old.. but my xperia s only gets edge internet conection..! D: No 3g at all! I'm in Bolivia btw. With "a" versions of other xperia phones I was able to get 3g internet connection.. why is this happening?

The 'a' and the'i' signify different versions of Baseband. The baseband determines which 3g network you connect to ! Make sure you pick up the right instrument otherwise you wont be able to connect to 3G. Google "3G baseband" + your Country and then see which model, the a or the i supports that baseband Wrong baseband => No 3g

[HELP] Getting 3G

I just bought a Xperia Arc S (LT18a) Unlocked on Amazon.com, and I was wondering if there's anyway to get 3G on my phone, according to GSMArena this are my phone capabilities:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 2100 - LT18i
HSDPA 850 / 1900 / 2100 / 800 - LT18a
Orange Dominicana is 900/1900Mhz on 3G
EDGE on Orange is so slow.. What if I flashboot my LT18a to LT18i? Will it work?
Thanks

on your carrier, you need to fill the correct APN for the simcard.

Patambiz said:
on your carrier, you need to fill the correct APN for the simcard.
Click to expand...
Click to collapse
I didn't have to fill it, the carrier send me the config. My apn is good :s

Albert62 said:
I just bought a Xperia Arc S (LT18a) Unlocked on Amazon.com, and I was wondering if there's anyway to get 3G on my phone, according to GSMArena this are my phone capabilities:
2G NetworkGSM 850 / 900 / 1800 / 1900
3G NetworkHSDPA 900 / 2100 - LT18i
HSDPA850 / 1900 / 2100 / 800 - LT18a
Orange Dominicana is 900/1900Mhz on 3G
EDGE on Orange is so slow.. What if I flashboot my LT18a to LT18i? Will it work?
Thanks
Click to expand...
Click to collapse
Cross flashing between American and International models may cause some problems.. It is better if you don't do any such thing..
Sent from my Xperia Pro using Tapatalk 2

Hardware is different, you can't change it.
Sent from my Xperia Arc S using xda premium

Maybe trade it for a LT18i ?

I found the problem, its my data plan I have to change it

Xperia Ion LT28H or LT28I on Tmobile USA 3G/4G?

Has anybody been able to use the Xperia Ion LT28H or LT28I on Tmobile's 3G/4G? Some spec sheets list the AWS band and some don't.
Sent from my HTC Incredible S using xda premium

NardVa said:
Has anybody been able to use the Xperia Ion LT28H or LT28I on Tmobile's 3G/4G? Some spec sheets list the AWS band and some don't.
Sent from my HTC Incredible S using xda premium
Click to expand...
Click to collapse
The LT28H might be alright, but the LT28i will not be, due to that it only has one bandwidth it can use and not the other one. It is the missing the 850Mhz band,

LT28i barely works on T-mobile. I tried that and it dropped out of network very often.

I have an LT28i and it worked fine on T-Mobile's 3G when I was over there for a month. Their coverage is patchy in some places, but I got good speeds when I actually had 3G coverage...

xperia ion lt28i
i ran into this dilemma before and started a thread as specs conflicts
after some research and getting a hold of sony , the unlocked lt28i does work on t-mobile 3g, which i currently have right now and am very happy with it, am in phoenix area which is one of the better spots for t-mobile
many websites had the specs wrong, i had gsm arena semi fix it but they havent recognized the 3 versions for the ion, there is the lt28i which is the international version(t-mobile compatible) , lt28at which is at&t locked and lacks the frequency needed for t-mobile 3g as of now, the lt28h should work also on tmobile and is capable of 4g speeds on paper but sellers that i came across couldnt distinguish which international version they had so i went with the lt28i, which is future proof for lte and t mobile reframe to 1900mhz for 3g in the coming months
my brother has the galaxy s3, synthetic benchmarks aside, when i have 3g and the s3 has 4g web browsing is almost the same speed, even though he has ics but its not a polished experiance like the ion
the phone is loud enough contrary to web reviews that dont know anything about the XLoud
screen is great, battery isnt the greatest but sufficient for a whole day
hope this helps
if you google any sony model followed by "white paper" you will get the accurate specs for it

T-Mobile US
I've got LT28i and it works perfectly well in Charlotte, NC where we have 1700 AWS. My average speeds are 7-9 mbps. I flashed Rogers Radio right after ICS upgrade. Unfortunately it does not support HSPA 42 only 21. Also when scanning for available networks I get AT&T 2G, 3G, LTE besides T-Mobile 2G, 3G.

2g, 3g, 4g, etc
From the White Papers on each phone.
LT28i: UMTS HSPA+ 850 (Band V), 1700 (Band IV), 1900 (Band II), 2100 (Band I)
GSM EDGE 850, 900, 1800, 1900
LTE Band IV and Band XVII
LT28h: UMTS HSPA+ 850 (Band V), 900 (Band VIII), 1700 (Band IV), 1900 (Band II), 2100 (Band I)
GSM EDGE 850, 900, 1800, 1900
LT28at: UMTS HSPA+ 850 (Band V), 1900 (Band II), 2100 (Band I)
GSM EDGE 850, 900, 1800, 1900
LTE Band IV and Band XVII
So, they all work 2g and 3g on AT&T which uses 850 and 1900 for both. Only the LT28at will not work on T-mobile 3g, which usually needs 1700. However, they do lease 850 from AT&T and have started reallocating 1900 in some areas for 3g- according to wikipedia's T-Mobile page. So, you may be able to get it to work in some places 3g for T-mobile, but what's the point if you can buy the LT28i and have the best possible 3g coverage through T-mobile? And in 2013 then, both the LT28i and LT28at will work on AT&T and T-mobile for LTE/4g, which T-mobile has not yet deployed.
Personally, I thought the LT28h was the international version because it will work 3g in any country. That said, the other two will work in most countries 3g, you would just not have all the operators to choose from. Japan and Some of Europe may be questionable for 3g on these phones. Look up List_of_UMTS_networks on wikipedia. I can't post the link, but it lists all the UMTS operators and the frequencies they use.
The Xperia V (LT25i) soon to be release will be tri band UMTS and pentaband LTE. Not sure it will work on AT&T and T-mobile without band IV, but the other bands contain all of the band IV uplink and downlink frequencies, so I would think it could be used. LTE is not widely used yet if you travel to off-the-beaten-path places like I do though. Until LTE is more widely deployed, I'm more comfortable with a pentaband UMTS.

From what I have read t-mobile does not have any 4g technologies implemented at this current time. They do call hspa/hsdpa "4g" although it is only a slightly modified 3g tech. I have the lt28h which fully works without issues on the higher speed h+ tmobile networks. I think the soon to be released sony TL will work on tmobile for there hspa/hsdpa networks and depending on how they use lte it may work in some markets once they enable lte which could come as soon as january in some markets but probably not until 2014. Either way by the time that tmobile implements LTE sony will probably have 20 more variants of the sony xperia s. But if you want a fast high speed phone for today's tmobile network the lt28h will work what you need to look for is a phone that has hsdpa 1700/2100 this is how to get tmobiles full speed. The sony t , sony tx and the sony tl should also work.

After reading this entire thread now I'm more confused. Ruling everything out, the LT28H is the perfect model for use on Tmo's faux "4G" until they deploy LTE? I need a decent replacement phone that runs on something other than EDGE using Tmobile. My Samsung Galaxy S 4G is slow and needs to be cut loose. Advice?
In the long run I want the Z or ZL but the LT28H will have to do for now.

quailallstar said:
After reading this entire thread now I'm more confused. Ruling everything out, the LT28H is the perfect model for use on Tmo's faux "4G" until they deploy LTE? I need a decent replacement phone that runs on something other than EDGE using Tmobile. My Samsung Galaxy S 4G is slow and needs to be cut loose. Advice?
In the long run I want the Z or ZL but the LT28H will have to do for now.
Click to expand...
Click to collapse
the lt28h works great for me on t-mobile, average speed of 40mbps and i've gotten 70mbps on several occasions.

mrd7rs said:
the lt28h works great for me on t-mobile, average speed of 40mbps and i've gotten 70mbps on several occasions.
Click to expand...
Click to collapse
Nice! Now off to ebay to find an unlocked phone. These don't come in anything other than black right?

quailallstar said:
Nice! Now off to ebay to find an unlocked phone. These don't come in anything other than black right?
Click to expand...
Click to collapse
it also comes in red.

mrd7rs said:
the lt28h works great for me on t-mobile, average speed of 40mbps and i've gotten 70mbps on several occasions.
Click to expand...
Click to collapse
Question I forgot to ask. Are all these the same phone? LT28H and LT28i are the factory unlocked versions correct? And the LT28at is just the AT&T branded version?

quailallstar said:
Question I forgot to ask. Are all these the same phone? LT28H and LT28i are the factory unlocked versions correct? And the LT28at is just the AT&T branded version?
Click to expand...
Click to collapse
lt28i and lt28at has lte, lt28at does not have 1700 (band 4) spectrum for t-mobile 3g/4g.

mrd7rs said:
lt28i and lt28at has lte, lt28at does not have 1700 (band 4) spectrum for t-mobile 3g/4g.
Click to expand...
Click to collapse
So in theory those of us wanting the max speed while on T-Mobile would require us to get the LT28H? Just checking and asking tons of Q's before I drop 400 clams for a phone...

quailallstar said:
So in theory those of us wanting the max speed while on T-Mobile would require us to get the LT28H? Just checking and asking tons of Q's before I drop 400 clams for a phone...
Click to expand...
Click to collapse
I have a Xperia SL lt26ii and a couple months ago it was only picking edge up, but as of recently in So Cal it's been picking up HSPA and when I went to florida it was getting 3g. Their high speed coverage is still pretty patchy around here though, their restructuring is taking forever.

quailallstar said:
So in theory those of us wanting the max speed while on T-Mobile would require us to get the LT28H? Just checking and asking tons of Q's before I drop 400 clams for a phone...
Click to expand...
Click to collapse
i spent $600 on my lt28h when it first came out, and it was worth every penny

mrd7rs said:
i spent $600 on my lt28h when it first came out, and it was worth every penny
Click to expand...
Click to collapse
Wow! But it is a nice phone. I'm also looking at the LT30a but can't find any online retailers that sell it.

quailallstar said:
Wow! But it is a nice phone. I'm also looking at the LT30a but can't find any online retailers that sell it.
Click to expand...
Click to collapse
look for seller 'never-msrp' on ebay. that seller has the latest sony phones available and cheap.

mrd7rs said:
look for seller 'never-msrp' on ebay. that seller has the latest sony phones available and cheap.
Click to expand...
Click to collapse
I will do that and see if he has either.