yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] AntikytheraTech:
Hey all - I bought a T-mobile prepaid sim ($70/month unlimited) yesterday to try and see what kind of service and speeds I will get on an old handset I had laying around, AT&T Samsung Galaxy SII Skyrocket. I bought my unlock code from cellunlocker.net (This was an awesome website btw) - anyways, as soon as I popped in the sim card in the store I had voice and edge data. Spent a lot of time last night in this and many other forums trying to find an appropriate radio as I am running the CM10 nightlies. Most posts I was coming across were dated back in Jan/Feb of 2012 so the radios people were saying they were using were for much older versions of android and also for the former T-mobile network that DID NOT have the 1900mhz band (now it does). I found a thread with a comprehensive list of the T-Mobile GSII radios in the T989 Development section, I will link to that thread HERE - thanks go to VoiD-Dweller for putting all that together. I flashed the most up to date radio for the T989 out of that section, that would be UVLI1 as of this writing. This is an ICS radio but I am running CM10 (4.1.2 JB) and it seems to be "working" at the moment. I say "working" because in my house I have full bars of edge, however near windows and in a few certain spots I will get 3G bars and HSPA+ bar(s) (see screenshots below). I plan on being out and about today running some errands and will see if this changes - suggesting that the reason I am mostly on Edge here at home is a geographical issue (or being inside a structure). As far as I know it could be a radio issue though as I am running a 4.1.2 ROM with a 4.0.4 radio.... While I am out today, if I get solid 3G or HSPA+ signal I will try and snap some screenshots and update this post.

So I figured I would post in here and share what is working for me at the moment in the event anyone else is still not able to get off of T-mobile edge data on their [pocket]rocket.

Handset: ATT&T Samsung Galaxy S II Skyrocket (Samsung SGH-i727)

ROM: CyanogenMOD 10 (Android 4.1.2) Nightly (version 10-20130107-NIGHTLY-skyrocket)

Kernel: 3.0.49-cyanogenmod-ga56844d blinky-ghost@cyanogenmod #1 Mon Jan 7 09:57:08 PST 2013

Baseband version: T989UVLI1 (This is an Android 4.0.4 radio)

APN: After flashing the T989 UVLI1 radio, I then had a T-mobile APN, I just left this as-is. (of note, I did also have two other APNs listed, Simple and StraightTalk (T-Mobile) but I left the standard T-Mobile APN selected.

General area I am at: Arvada, CO​

UPDATE: after running around town for a few errands I am pleased to say that I get full bars of 3G and HSPA+ (screen shots below) My speeds are not all that great but still SOOOO much better than what I get with sprint on my D2SPR (no LTE in my area), plus this is unlimited HSPA+ data (no cap, no throttle) and prepaid :thumbup:

I would like to see better up speeds but this was only a snapshot, hopefully its better in other spots. The handoff between 3G and HSPA+ is flawless. This might just be what finally gets me to jump ship from Sprint.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] tdcrone:
I am using the same setup as you are, except I bought my phone just for this, and am using the $30 100-minute plan. :)

I was able to use this unlock procedure , for those who come behind us. Free and easy, at least if you are thinking about flashing radios anyway.

Thank you for the pointer to this thread! For me, the Blaze 4G LH5 radio was working well, and the LI1 radio seems to also be working well - maybe a lower signal level but the usability seems about the same. The LH5 had some flakiness with handoff between E and H so I will have to see how it goes over time - or maybe I just get terrible signal at work.

I am also likely to bail from Sprint if this phone is good after a few days; I have the old SERO plan but for the same price I would rather have a better supported GSM device.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pwong9:
I managed to get CvD-Nibbles 1.6 (Jelly Bean mod ROM) loaded and Blaze_4G_LB7_ICS_Radio_MOD. A little tweak on http://xdaforums.com/showthread.php?p=36710340#post36710340 makes it even better.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] AntikytheraTech:
Glad to hear I am not alone and glad to see its working. I have not yet tried the Blaze modems. Will give that a shot later today. Depending on where I am at, I am getting between 1-10 Mbps down (average is around 3). But I am getting up speeds of less than 1 Mbps. We shall see if one of these blaze radios works with my setup :D

I have not looked into that particular ROM yet but will check it out. As far as the build.prop tweak you linked to, I can say that I do not have those build.prop listings in mine (but I am running CM10), the thread that was in is for stock 4.0.4 - I assume that's why. But thanks for the info, I will check my build.prop on other ROMs I flash to see if I can tweak those values and squeeze out a bit more speed.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pwong9:
I also managed to load a couple T-Mobile ROM like Liquid_All-Star V5.5 and All-Star-Rom V2-1 with skyrocket kernel Sky_p3.2 and Blaze_4G_LB7_ICS_Radio_MO plus the build.prop tweak to work great.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Chris J:
Just a thanks for this thread -- after much reading, I flashed the Blaze radio and am getting good 4G performance from my Skyrocket, where there was only Edge before. Btw. I am in San Luis Obispo, CA, which probably won't see the 1900 MHz re-farm for a good while.

Again, thanks to all.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
What speeds you're getting in speed test app in average ?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Chris J:
Speedtest shows 62 ms ping, 7786 kbps download, 550 kbps upload. Better results than I used to get with at&t around here.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
I'm pretty happy with my switch to T-Mo, too. I ran this while visiting Saratoga last week. In comparison, my friend with a G-Nex on T-Mobile was getting roughly 6Mbps down and 4 up. I'm also using a Blaze radio (LB7).
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Chris J:
I'd like to see a little better upload speed, but presemt results are OK for my purposes. Also, so far I have only tested inside my house. Tomorrow while I am outside I'll check again.

Down and up speeds are both better than I get through my home dsl/wireless, anyway. I'm happy.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Febby:
Does anyone have a good combo they use near Los Angeles, CA? :) using a stock 4.0.3 leak rom + blaze Lb7
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
Slim Bean w/ Blaze LB7 worked just fine for me in LA. However, downtown LA is one of the places where the 1900Mh is in effect. So you would get HSPA there on a stock radio, too.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] EvmL:
Any luck getting reception with the Bell 757m radio on Wind Mobile? Not picking up any bars here, wondering if anyone else has.

Blaze 4G is the only radio that is working for me up here in Canada for Wind, and even then, the reception is spotty haha.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Chris J:
Update -- after adjusting the apn settings I got somewhat better performance. Here are the new apn settings:

T-Mobile US

epc.tmobile.com

Proxy not set

Port 8080

User name none

Password not set

Server not set

Mmsc http: // mms.msg.eng.t-mobile.com/mms/wapenc

Mms proxy not set

MCC 310

MNC 260

Authentication type none

Apn type internet + mms

Apn protocol IPv4

Enable/disable apn APN enabled

Bearer unspecified

Tonight's test results:

Ping 233ms

Up 9.4 mbps

Down 2.2 mbps

Maybe this will help someone.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] aaron pippin:
4g skyrocket

I must say, for a cabinet maker you have made the world of technology A mere stroll through the park... Not having done this before, I have managed how to unlock my phone, rooted, and put it on a 4g network running 4.1.2. Thank you thank you thank you!!! I will be posting images of what my up and down speeds are... Thumbs up... Well, toes up too!!!! \,,/ you rock!!!! I'm from Kansas City and I understand that we are going to be the first for T Mobile to intro their lte for them!!!! Super stellar!!! :highfive:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] intelxtreme:
Stock radio

I get good coverage with stock radio uclk2 and skyjellybean and get good battery life
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
You get H+ T-Mobile coverage??
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
He's probably in an area w/ the 1900Mhz refarm.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] ryanaz:
i've installd the newest cyanogenmod rom on my skyrocket along with just about every radio that claims to work with AWS/T-Mobile. For whatever reason I cannot get Wind Mobile to work properly. SMS and reception are just fine, but when I made voice calls the outgoing audio gets all garballed up while incoming is perfectly clear. Any idea what is causing this?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] John`:
Quick question: If my area has the 1900mhz refarm would i need to flash any radio? Im in chicago. Thanks
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
You can use any skyrocket stock radio...Use UCLL3
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] John`:
Alright thanks! Im planning to get one.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] edgex:
There is a huge list of radios, and this thread seems to be about a year out of date in the OP.

http://xdaforums.com/showthread.php?t=1895400

Which one is best these days? I live in the San Francisco / North Bay if anyone in the area has any input on which to use.

Im also running CM10.1 if that makes a difference.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] brck:
I was wondering the same thing yesterday.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] wilsonmd:
problem to download the radios!!

I did try to download the stock radio and nothing happend :-s
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
If you're in SF, just about any radio will work, since it's one of the areas with the 1900Mhz refarm. I'm also in SF, have been using Blaze (LB7) on Slim Bean for awhile w/ good download speeds. I've also tried the Note (UVLG3), t989 (UVLE1), i757 (MUGLH2), and all have worked just fine. Also, all AT&T radios have worked for me just fine in the city (though not as great if I leave to say.. South SF or San Mateo).
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] intelxtreme:
blaze

Use blaze modems like the lf4 they are faster and good battery life stock radios drain way faster and not stable on T-Mobile put a latest nightly quill be good
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] SaHiLzZ:
Anyone tried the new T-MO radio? http://xdaforums.com/showthread.php?t=1895400
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bullorbear:
How about East Bay?. Berkeley/Oakland
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
I haven't tried an AT&T radio in east bay, but the Blaze radio I was using got me decent HSPA+ speeds (in Berkeley).
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bullorbear:
Can't get this working.

I am on stock 4.1.2. Flashed UVMC6 radio. I don't even get edge data now.

Anyone using any JB radios?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bzzybfrm313:
This is what I get in my area

Edit:using T769UVLH5
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] beachmiles:
Tried a bunch of radios and Uvli1 works the best in Redondo beach LA. Got a really weak signal here so I'm more concerned with holding a signal. Other radios seem to have trouble transitioning from 4g to edge. Wondering if this is an issue with using the T-Mobile radios w the skyrocket or if its just the service. Tempted to buy a T-Mobile phone from bb and see if the issues remain and return it
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] iNeedICS:
Anyone get lte working? It should since Tmobile and at&t both use aws lte bands... I just don't have an s2 to test with
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Bump... because I am wondering as well if anyone has had success with this?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Anyone interested... I have T-Mobile lte on the skyrocket. To get it, I flashed the i757m modem, changed APN settings to the fast.t-mobile.com and (what I was missing before) switched to ipv4/6. So everyone knows now. It can be done. I will sleep well tonight.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
It could been easier if you provided a link but thanks for letting us know about that.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] beachmiles:
Great news! Where do you change or add the IPV 4/6 setting?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
The bottom of the APN settings screen.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bzzybfrm313:
Could you provide a like to the i757m modem

Edit: what APN setting are you using
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
For those who haven't learned to search...

http://xdaforums.com/showthread.php...MWARE | RECOVERIES | RADIOS | HOWTO's | &MORE
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Screenshot as well
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Chris J:
Ipv4/6 setting is not changeable on my s2; stuck on Ipv4 only. Don't know why.

Tried the 757 modem and got edge only. Went back to blaze modem. That at least gets 4G hspa in my area.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
Are you using This Modem to get t-mobile 4g hspa on your s2 i727

Blaze_4G_LB7_ICS_Radio_MOD-2

Because i'm stuck on edge. once in awhile i see 4g when i wake my phone up but mostly it's Edge.

Just like your i'm also unable to change Ipv4. Tell us how you change that.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Perhaps try creating a new APN...:rolleyes:

A simple thanks would be appreciated rather than complaints of me not holding your hands throughout as I am doing now...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
First of All Thank you. Really Appreciate your Hard work. <---- From my Heart.

I tried creating a new apn but im not able to change the Ipv4.

Can you tell me which rom,kernal or radio your running.

Take a Screen shot of about phone area.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
I'm on slimbean 3.1 official, the official kernel, and the i757m modem I linked to.

Here is a link to my screenshot showing my LTE connection as well.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Screenshot of ROM,kernel,etc.

also, no need for the kind words, although I appreciate. Just hit the thanks on my helpful posts...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Chris J:
The file I'm using is Blaze_4G_LB7_Radio.zip. I don't recall where I got it. Btw, I have found an app called Open Signal very handy since I started messing with radios.

---------- Post added at 01:03 AM ---------- Previous post was at 12:39 AM ----------

The settings for APN protocol and Enable/disable APN may not be changed on my S2 (stock ICS rom). There is apparently no way to set IPv4/IPv6. Btw, no complaints... I guess this is a stock rom issue; if you are running non-stock you wouldn't necessarily know.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
So i got Everything same as you Rom,Kernal,Baseband.

But still stuck on edge i guess my area doesn't have lte or less 4g.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
You may wanna try some different radios, some work better than others in different phones and areas. I'm actually gonna be trying the rogers radio as my LTE seems to be very finicky with this radio. Funny thing is my general reception seems better on this one.:confused:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
So you're saying that i should use the same rom and try to flash different radio.

Btw when flashing radio do i need to wipe cache, dalvik thing or just straight up flash it.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Yes I'm saying try a different radio. No need to wipe anything when flashing a radio. Just flash.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
Here is how I finnaly got 4g. But still mostly stuck on 2g.

Btw are you using twrp or cwm
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
I'm on twrp. Glad you finally got 4g. Is it H+ or LTE?? My ROM only says 4g for LTE but I know others aren't the same.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
It's H+ so Hspa. I don't get 4g in my apartment but i'm sooner moving out to a house which get's Great Coverage.

Will post results soon of my Speed test. If everything goes well i'm gonna wait for note 3 if not S4 I'm coming for you.

Thanks for your Helps Guys.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] JediDwight:
Your screenshots show the stock AT&T Skyrocket rom and radio with the 4G indicator. You may be in an area where T-Mobile has added some 1900 MHz spectrum they got after their failed merger with AT&T. They use this to entice people with unlocked iPhones to switch. You can check out this website by a T-Mobile MVNO called Simple Mobile, which has an unofficial map of towers upgraded with a 1900 MHz 3G/4G signal. http://airportal.de Why it's a German domain is anybody's guess. But you could get some 3G/4G service.

I found myself driving through such an area and I would get Edge mostly but sometimes 3G/4G. In my case my OpenSignal speed test showed it was only 500Kbps 3G.

I haven't flashed to a T-Mobile or compatible radio yet but I'll keep my eyes peeled on this thread. Props to parkave85.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
Yeah I notice that my phone is using 1900 MHz for the 4g signal but the people who use different radio which frequency do they use?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
1700/2100 aws bands
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
So those lte band can be used as 4g. Or does my area has to have lte
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jedah:
Is there an app you're using to test what frequency you're using?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
No. But I have international version of s1 which use 1900mhz for 3g. I thought s2 is using the same frequency.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
You have to have LTE in your area, then yes they can be used for LTE.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
Okay. Now that Make Sense. But i can't wait to upgrade my phone
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Papp:
Okay I have been trying this for hours and any combination I've tried hasn't worked. I am on WIND Mobile and I'm using TWRP to flash.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
http://xdaforums.com/showthread.php?t=1785999

[REF] 1 STOP> | ROMS | KERNELS | FIRMWARE | RECOVERIES | RADIOS | HOWTO's | &MORE

Look here, 1st post, under radios.... you need the one for wind mobile. I believe the T-Mobile radios will work as well for you.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Papp:
I have tried all of the WIND ones and the TMobile ones in combination with Stock, Slimbean, CM9, CM10, and CM10.1. I am still not able to connect to WIND. The only success I've had is roaming to rogers. My phone is the at&t model btw.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Are you sure you're using proper APN settings?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] tjsooley:
Havent posted in skyrocket forum in some time. Here is a cwm zip for the bell 757m Official JB modem / radio

http://d-h.st/cVf
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Papp:
Yeah, the APN isn't the problem. The phone manages to set that up properly on its own. The problem is I can't connect to WIND at all. I just get network unavailable when I manually choose it.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Papp:
Turns out the phone must be broken. Won't connect to Rogers using a Rogers SIM for more than 5 seconds with everything stock.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Aimless Rambler:
Very anticlimactic!!! I just read through 49 pages of posts, have a very pissed off gurlfriend, dog has to pee and my eyes are bleeding, all towards refining my connection and you got a broke phone! Ha ... Kidding of course. I am sorry to hear anyone have troubles but I the only thing I'm now certain of is one, I might have OCD and two, my connection speed isn't likely to get better than H+ ... although my daughters rinky dink HTC Radar connects @ 4G all day long. :(

Update: I sort of backed into a fix ... total accident. After I read up on flashing a T989 Rom on the I727 and addressing the screen orientation issues and experimenting I now have 4G happening. If anyone wants details just holler. I'd add info here but not the proper place for it I take it. :)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bzzybfrm313:
I would like to know the details if ya dont mind
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Aimless Rambler:
I'll post in the appropriate place once I get home and work on a few issues.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Fatty1212:
Thanks, pls do
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
Also please post which phone model and carrier you're using.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] alias4ever:
Thank you so much for all this. :) I'm having a hard time downloading though. It takes me to www.minus.com and when I click download on the page it just takes me to the home page of minus. :confused: Alternate download possibly??? :cool:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] parkave85:
Try looking here under T-Mobile radios.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Aimless Rambler:
Okay, for those who asked. I unlocked my phone per http://xdaforums.com/showthread.php?t=2029650 , flashed the Jedi Mind Trick Rom for JB via ptmr3's thread http://xdaforums.com/showthread.php?t=1818305&highlight=flash+superuser, installed the speedtest app and tested a few radios per VoiD_Dweller's thread http://xdaforums.com/showthread.php?t=1895400. Jedi Mind Trick installs with the UVMC6 radio but for myself (located in the inter-mountain west) the UVMB1 radio delivers the most consistent download speeds between 4-9Mbps on 4G (see attached image), though upload speeds are on the slow side of things. I'll tinker with it some more.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
Thank for Telling me about your radio's. I finnaly got 3g or HSPA.

but for somereason it shows i have 3g or Hspa but when i try to acess the internet it won't load anything.

I even tried calling it didn't work. I'm using Avatar Rom 10.1 and used Both radio (UVMB1 and UVMC6).

Anybody help me solve my problem.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] proza:
How about the reverse, is it possible to put the skyrocket modem/radio into the Bell/Virgin Mobile i757m, such as the UCLD2?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Aimless Rambler:
Update: Download and upload speeds are both pretty good at this point and over the past 24 hours have remained steady. Other than one odd reading taken in the wee hours my download speed averages 8-14 mpbs and Upload speeds are fairly steady in the 2's (2.28-2.87 mbps). I'm still using the UVMB1 radio with no additional tweaks to the system. The performance difference from one day to the next is a mystery to me. I suppose network traffic may effect it to a point but I'm no expert. I'm just wasting my data doing tests ... ha! :cyclops: