yashsingh1/xdaforums huggingface dataset:
[Sony Xperia S, Acro S, Ion] shangoof:
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
[Sony Xperia S, Acro S, Ion] mffu:
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.
[Sony Xperia S, Acro S, Ion] drjby4:
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.
[Sony Xperia S, Acro S, Ion] mine420:
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.
[Sony Xperia S, Acro S, Ion] quailallstar:
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.
[Sony Xperia S, Acro S, Ion] mrd7rs:
the lt28h works great for me on t-mobile, average speed of 40mbps and i've gotten 70mbps on several occasions.
[Sony Xperia S, Acro S, Ion] quailallstar:
Nice! Now off to ebay to find an unlocked phone. These don't come in anything other than black right?
[Sony Xperia S, Acro S, Ion] mrd7rs:
it also comes in red.
[Sony Xperia S, Acro S, Ion] quailallstar:
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?
[Sony Xperia S, Acro S, Ion] mrd7rs:
lt28i and lt28at has lte, lt28at does not have 1700 (band 4) spectrum for t-mobile 3g/4g.
[Sony Xperia S, Acro S, Ion] quailallstar:
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... :)
[Sony Xperia S, Acro S, Ion] skylinrcr01:
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.
[Sony Xperia S, Acro S, Ion] mrd7rs:
i spent $600 on my lt28h when it first came out, and it was worth every penny
[Sony Xperia S, Acro S, Ion] quailallstar:
Wow! :eek: But it is a nice phone. I'm also looking at the LT30a but can't find any online retailers that sell it.
[Sony Xperia S, Acro S, Ion] mrd7rs:
look for seller 'never-msrp' on ebay. that seller has the latest sony phones available and cheap.
[Sony Xperia S, Acro S, Ion] quailallstar:
I will do that and see if he has either.
[Sony Xperia S, Acro S, Ion] Toledo_JAB:
lt28h = no LTE

Just remember that the lt28h is NOT LTE compatible. Only the lt28i & at & I think rogers version have the ability to use LTE 4G.

AT&T uses different terms than the rest of the world.

for AT&T LTE= world 4G : AT&T 4G= world H/H+: AT&T 3G= world 3G

LTE is the true 4G and H/H+ is like 3.5G

Our Ion wiki page has all the Sony white papers with correct frequencies for each model. Just make sure what freqs are used in your area. the same carrier will use different bands in different areas. what works on T-mobile in one city may not work in a different one.

Off-Topic: We have a Q&A section for all questions. Please read XDA rule #15 on proper posting. Thanks

~Jaramie
[Sony Xperia S, Acro S, Ion] optimumpro:
For anyone who has an unlocked Xperia AT&T phone, it would make sense to flash base band of LT28I. This way you will have T-Mobile's 1700 band, which is blocked by AT&T. If you don't, you could still use the phone on T-Mobile 3G, but only on 1900 band, which is not as developed and available (somewhat) only in major metropolitan areas (to lure Iphone users). Just flash your phone unmarking everything and excluding everything, but the base band. This way you will preserve all your data and settings.
[Sony Xperia S, Acro S, Ion] Toledo_JAB:
Correct.With SIM unlocked phone.

From Jaramie's LT28at

2012Xperia SOFT-BRICK Recovery Thread
[Sony Xperia S, Acro S, Ion] optimumpro:
Respectfully, but I believe my information is correct. Although, you are right that one can't change hardware frequencies by flashing, one can reverse previous blocking and restore 1700 band (in case of ION AT&T). I believe Xperia 28at has the same hardware as Xperia 28I. It is just that AT&T blocked 1700 to prevent users from accessing T-Mobile 3G band. So, when you flash 28i bands on at28, you just reverse AT&T blocking.
[Sony Xperia S, Acro S, Ion] Toledo_JAB:
Re: [XI] ION General Discussion Thread

Edit: he is correct. I was wrong.

SIM unlocking will allow use of 1700 band on a LT28at.
[Sony Xperia S, Acro S, Ion] Toledo_JAB:
Need some clarification

These are the pictures are of my current system. I have a LT28at still locked to AT&T. My rom is listed and I have flashed the .68i version basband for my AT&T LTE network.

I used the *#*#service#*#* code from dialer to get info.

If someone, That has unlocked the carrier lock on a LT28at, could post their info It will be very appreciated.
[Sony Xperia S, Acro S, Ion] optimumpro:
My LT28at shows also UMTS BC_4. And as I have already mentioned, I flashed LT28I baseband to get T-Mobile's 1700 band. I am trying to take a picture of my screen, but it is out of focus. I will post it as soon as I can get it right.
[Sony Xperia S, Acro S, Ion] optimumpro:
Here you go: my phone clearly shows UMTS BC_4 band, which is T-Mobile's AWS/1700 band. I got that after flashing LT28i bands.
[Sony Xperia S, Acro S, Ion] Toledo_JAB:
You are clearly correct :)

Since joining XDA, I learn more each day.

You are the first person to show that it works.

Thanks

~Jaramie

From Jaramie's LT28at

2012Xperia SOFT-BRICK Recovery Thread
[Sony Xperia S, Acro S, Ion] optimumpro:
Thanks. I am novice to Android, but I come from more than 10 years of using and experimenting (with) Nokias and Symbian. I still think Nokia has the best hardware and materials around, but I couldn't stand their marriage to Microsoft. I have recently discovered for myself Linux and I said Good Bye to Windows; so Android was a natural choice for my smart phone. And I chose Xperia ION for having quality materials: metal, glass and just a little plastic. I got rid of that factory installed screen cover (although I saved quite a bit because it had numerous scratches) to have this beautiful glass screen on ION. I hear Xperia Z is mostly made of glass. Good job, Sony...
[Sony Xperia S, Acro S, Ion] quailallstar:
UPDATE: Ended up ordering the TX LT29i which works on Tmo's faux 4G network ;)

Now to see how I can root this damn thing...
[Sony Xperia S, Acro S, Ion] mine420:
Tomo. Has lte now plus h+ same frequency as att.

Sent from my MI 2 using Xparent Skyblue Tapatalk 2
[Sony Xperia S, Acro S, Ion] orrorin:
So wait, you can restore the 1700MHz band to AT&T LT28at by flashing the LT28i baseband?

I was thinking about picking up an LT28i, but if I can get 1700MHz on at LT28at that would be way more convenient, since craigslist is bursting with AT&T models.

So, if someone doesn't mind, catch me up really quick on the Sony ion. You can't unlock the bootloader on the AT&T model, from what I understand, but you can root and flash new kernels and basebands (like the LT28i version)?

This is exciting!
[Sony Xperia S, Acro S, Ion] optimumpro:
Yes, you can have all ION bands on AT&T version, but you can only flash stock firmware, as opposed to other roms (stock meaning any stock firmware from LT 28h or LT28i). If you buy AT&T version, you would have to deal with sim lock issue, locked bootloader and AT&T bloat...

Me personally, I got rid of all AT&T applications. I also removed everything having anything to do with Google, including Google framework services. And I use LB guard, which lets me choose permissions. Remember, Google is evil. LOL. As such, no application on my phone has access to phone id and positioning, except for navigation (positioning only), and I use Sygic.
[Sony Xperia S, Acro S, Ion] jommyjom:
Hi I have been scouring lots of threads here, but I still don't really know. I'm coming over from only having used an iPhone, but now I'd like to go Android.

I recently bought a LT28AT and am in the process of carrier unlocking it to use on T-Mobile. However, I don't really know what flashing the "baseband" is because I am completely new to this. Can someone point to a guide or give me some direction as to what I would need to do after carrier unlocking it to unlock the 1700 band so that I can get 3G on T-Mobile? I love the LT28AT more than any iPhone I have owned and would love to use it on T-Mobile.

Thanks in advance!
[Sony Xperia S, Acro S, Ion] mingkee:
This is EXACTLY what I am looking for.

So I just flash Hong Kong ROM (to debrand), and LT28i radio to get AWS HSPA + LTE?????

If so, how?

I have obtained required ROMs.

LT28a is SIM unlocked.
[Sony Xperia S, Acro S, Ion] NardVa:
From what I read the Lt28h supports hspa+42 and the the LT28i supports hspa+21. Is this correct? I was going off the specs at gsmarena but I know that info can be wrong sometimes.
[Sony Xperia S, Acro S, Ion] zackspeed:
Not to bring a old thread back from the dead but I am looking to switch to T Mobile with my Ion. I know that we have established that the generic international baseband does allow the 1700 but does the Rogers do this as well?? Seeing as I am using a custom port of ExistenZ on Aoba pure black I am using the Rogers 211 baseband. It has been flawless for me but not sure it actually allows the 1700. So wondering if I need to switch the baseband to generic 3.7 ICS or not. If I try to look at the info using the code it just says language pack not installed so I can not confirm if it has the bc4 1700 or not. [MENTION=5075064]optimumpro[/MENTION] [MENTION=3506348]Toledo_JAB[/MENTION] some help would be awesome.
[Sony Xperia S, Acro S, Ion] optimumpro:
Yes, it does. Roger's baseband unblocks H+ T-Mobile's 1700 frequency.
[Sony Xperia S, Acro S, Ion] zackspeed:
Sweet. Thanks for the response as I am looking at running my Ion on Simple Mobile and did not feel like messing with flashing again seeing as it is running quite well these days.
[Galaxy S I9000 Q&A, Help & Troubleshooting] midi_1996:
Hi everyone,

I was listening to music on my phone and the UP volume button was working normally until it stops responding. I rebooted the phone and still no respond. I can't flash my phone now cuz I can't access to recovery mode and I don't have my pc to use odin (I can access to download mode).

If it is a software problem, please give me a solution, if it is a hardware problem, pleasa give me a guide w/ photos if it is possible.

MY CONFIGURATIONS:

Samsung galaxy s gt-i9000

Stock jvu value pack w/ cf-root kernel.

Thanks a lot for any help =D
[Galaxy S I9000 Q&A, Help & Troubleshooting] Porobu:
The same happened to me on galaxy y

As a temporary fix u can use fine volume control to channge volume up and down using the dial. For using recovery open a adb shell and type adb reboot recovery or from terminal type su and then reboot recovery.
[Galaxy S I9000 Q&A, Help & Troubleshooting] priyank.g:
sorry to revive the thread , but i have the same problem with galaxy y .. the volume up button doesnt work while using the phone . i can access recovery mode without any problem but the download mode isn't accessing .. it goes to recovery mode directly
[Galaxy Tab 10.1 General] cussuol:
Hello Friends.

Sorry if it is a dumb question.

I'm from Brazil and bought my Galaxy Tab 10.1 with 3g GT-P7500 from a not autorized resseler. I'm pretty sure its not a Brazilian version, it's not branded of any telecom company.

I'd like to know from which country does it comes from. Is there any way to check it?

About screen shows me:

Model: GT-7500

Android Version: 3.2 (no ics yet)

Base Band: P7500UBKL1

Kernel Version: 2.6.36.3 se.infra@SEP-41 #1

Compilation: HTJ85B.UBLK3 P7500UBKL3

Thanks
[Galaxy Tab 10.1 General] stinky73:
Looking at samfirmware lists the only UBKL1 referenced is for Trinidad and Tobago for the baseband
[Galaxy Tab 10.1 General] cussuol:
agypyn brandt

Yes, Kies show me:

PDA:KL3 / PHONE:KL1 / CSC:KL1 (TTT)

According to samfirmware that TTT means Trinidad and Tobago.

Is there any problem to flash a ROM from another country?

Thank you.
[Galaxy Tab 10.1 General] osama_talha:
I have a German Tab with German ROM. Was able to flash Polish, UK and Italian ROMs. U can flash any ROM as long as it's for p7500 3g. U might need to add your apn settings, but that is really rare. Never had to do it for myself.
[Galaxy Tab 10.1 General] stinky73:
Should not give any problems
[Galaxy Tab 10.1 General] arizal:
http://samsung-updates.com/device/?id=GT-P7500

the funny part is, mine shows P7500UBKL3, which is Brasilian, and I'm in Bulgaria
[HTC Sensation] FulgerX2007:
I have been established MIUI v4 firmware and stock kernel.

I want to put a core of SebastyanFM with 4XDA recovery. but produces custom error (status 7)

HTC Sensation Z710e.

Problem solved!

Installed UNSECURE KERNEL
[HTC Sensation] InfinityFTW:
Is the MD5 sums matching? Could be a bad download :)
[HTC Sensation] Jonny:
Try disabling Signature Verification in recovery.
[HTC Sensation] mike2nl:
Why you don't ask in the thread from SebastianFM? ;)
[HTC Sensation] realsis:
It's probably a good idea to ask this in the Sebastian developers forum as said above because they know all about issues ext. Related to this kernel also I'm sure they know fixes for issues that may arise. You will likely get the help you need there. Hope this helps you and best wishes.
[HTC Sensation] Jonny:
Ok, just got on my computer and saw the screenshot. your phone is failing to write the newBoot.img to the boot partition - I'm guessing you are S-ON in which case you need to enable SmartFlash in 4EXT
[HTC Sensation] rzr86:
no guys,i had exactly the same issue

see this thread: http://xdaforums.com/showthread.php?t=1556620
[Sony Ericsson Xperia Neo, Pro] gregbradley:
Apologies if this has already been linked.

This is a great tool that "should" remove bloatware on our devices, i say "should" because it was originally developed for the Play. The Dev has said it should work on but does depend on the bloatware app names.

This is not my work. Credit to fma965.

The original thread is here

[AROMA|MOD][18th August][V0.3] Speed Up Your Rom! (Bloatware Remover)
[Sony Ericsson Xperia Neo, Pro] DrumDub:
wil try it the next days.
[Galaxy Note GT-N7000 General] Ajseter:
Can any DEV can port S3 lockscreen in there Rom like AllianceROM N7000 ICS v2.1
[Galaxy Note GT-N7000 General] vs_infinity:
so far it is only avaliable on (AllianceRom N7000 ICS v2.1) but i think other custom roms will have it sooner or later
[Galaxy Note GT-N7000 General] sahilarora2003:
http://www.mediafire.com/download.php?h80axxe9jel6623
[Galaxy Note GT-N7000 General] biostar:
use Go launcher and Go lock with S3 theme
[Galaxy Note GT-N7000 General] abissel22:
I think u should stick with what yours comes with. The splashy lock gets gold quick.
[Galaxy Note GT-N7000 General] Rotry83:
+1 :)
[Galaxy Note GT-N7000 General] 4TY4:
I tried Alliance rom because it has the s3 lock screen, but will be staying on this fantastic rom for now. It is one of the best roms I've tried (and I have flashed a lot of different roms). So if you want the s3 lock screen try it on Robbie's rom. You will get so much more!

Sent from my GT-N7000
[Galaxy Note GT-N7000 General] prankster_dev:
there is no mod or app to my knowledge
[LG Optimus Black] teddygo:
I've got a 6 month old OB which I want to root & install an ICS rom but one thing I have not been able to find out:

Can I root it without wiping it first? I've heard plenty about Titanium Backup but that needs root access first.

Alternatively, what is the best way to backup all the apps & settings ahead of time?

I did a search and couldn't find clear answers to this, sorry if it has been asked before.
[LG Optimus Black] sekhar13515:
If you have Rooted phone, My Backup Pro is the best app to backup and install including Data with apk files

If you are not rooted, it can only backup apk, not data
[LG Optimus Black] teddygo:
I don't have a rooted phone. I'm trying to ask if there is a way to back up the data without rooting, or back it up before rooting.
[LG Optimus Black] RomWiz:
If you aren't rooted you can't backup the data.
[LG Optimus Black] NEXUSBOY:
No backups without root accs

sent from my htc
[LG Optimus Black] teddygo:
Ok, no backups without root access. Any way to attain root access without wiping everything?

This isn't a deal breaker, but it'd be nice to retain what I can.
[LG Optimus Black] ErnuB:
Risk of getting bootloop or non usable play store, which apps do you want to backup so badly?
[LG Optimus Black] dare14:
Astro file manager my backup 30 days trial no root access
[LG Optimus Black] FunkyGanja:
Delete this post.
[LG Optimus Black] jacor2:
backing up

Rooting a phone you don't have to wipe anything. After getting a root you'll be able to make a real backup. Then you can wipe and flash any rom. Also you can flash a fresh rom without root, so you can "revert" rooting.

Good programs to backup your data:

- CWM - making a nandroid backup - best method to backup all data on your phone

- Titanium backup - very functional, professional program

- Go Backup - to store contacts, smses, call-logs and installed programs
[LG Optimus Black] RomWiz:
IF you are on 2.2 you don't need to wipe anything.

If you are on 2.3.4 you need to wipe everything.

Sent from my Phone with ultrasound
[LG Optimus Black] FunkyGanja:
Can't use CWM if the phone hasn't been rooted and is on GB with the Current CWM injection method because it wipes all Phone on board memory.
[LG Optimus Black] the_r_sole:
can i just hijack this a bit...

looking at rooting my optiumus black but basically it's my work phone which currently has a load of text messages/emails/contacts I could do with keeping, is there anyway to keep this on the phone??

android version is 2.2.2
[LG Optimus Black] xonar_:
You can root 2.2.2 without losing anything. To be safe : Make backups of your contacts,hopefully your email should still be on the email server and if you really need those text messages then you can write them down. If it is really really important to keep the information rather not risk it.

Back To The Original Topic : If you want to just backup apps (not other stuff) then ES File Explorer can do that for you.
[Galaxy S III Accessories] Bor_NL:
Is it worth to change my flex hd to a curved crystal screenprotector? I'm asking this because i've both laying around. The only thing i dislike is the rubbery feeling of the flex hd.

Somebody already tried both and can tell me the differences?

Verstuurd van mijn GT-I9300 met Tapatalk
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Gustavo RD78:
Good work friend

Keep mod!

Enviado do meu Smultron
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] auni:
Great Work! Keep Modding. More themes means more variations :)
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] KhemaraS.:
If you allow i will use it in one of my next rom release :D
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Orochixxx:
of course No problem use ,:good:
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] KhemaraS.:
Keep up the good work :D
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] john9:
great share!Thanks
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] lea95:
Great job!
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Orochixxx:
Add First message - Punisher Theme
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] whalesplaho:
dis is fantastic buddy.... great!
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Orochixxx:
thanks

add 3 new theme :silly:
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] milon521:
could you plz tell me, where can I get your x-walkman ultimate rom?
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] whalesplaho:
i would like to have Carbon, Xperia, Car & ICS PhaseBeam in just one Defaulttheme.apk.... can yhu do dat brov???
[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] luiskp:
thanks

Greta work