yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] droidbabyxda:
once unlocked it is unlocked to all network

check your apn
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bilalwiggles:
alhamdulilah it worked! :):good::good: rogers 1727r
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] swatkjp:
SUPER FRUSTRATED! im SUPERNOOB!

I have followed every step to the T but I stil cannot get an unlock! Im using a tmobile sim. I flashed both files (rom first both times) and enered the code correctly both times and every time I turn phone back on for unlock I still get the same thing. When I tty and use the phone it says "not registered on network" or sometimes it will say "phone not allowed" with a code that says MM#6. PLEASE HELP! Really need an unlock
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
Are you already using T mobile on your skyrocket ?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] swatkjp:
No, thats what I am trying to do. Its still locked to at&t.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mahanddeem:
I see... Don't be surprised there was a smart guy few posts up was trying to unlock after he got bored of calling his friends and using internet on his T-Mobile sim
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
your phone is unlocked. if it was locked it would be asking you for the unlock code.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] TAMARETTE:
thank you so much

THANK YOU so much This worked absolutely perfectly for me. You saved me money I don't have and a lot of headaches. I hit the thank you bar because you so deserve it.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] magiconthetire:
I can confirm that this works perfectly on a Rogers Canada Skyrocket LTE I727R.

I am using it on T-Mobile USA with ZERO issues :D

Big thanks to OP
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Ljdd:
so, I just do full wipe or something? trying to unlock for a family memeber and Im getting a major headache, or do I just flash over? please tell me
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
Read the instructions dude
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Ljdd:
it doesnt say dude, just just asking, what suppose to be wiped, just something simple,
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] machhho:
I can confirm that this works perfectly on the At&t Skyrocket .

thanks alot to OP
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Ljdd:
Dude, I done read it like 3 times and it doesnt say,
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Dude, if you read the first two posts, you're flashing a rom and a radio. Of course you do wipes. Unless you're already on UCLD2.

Sent from my SAMSUNG-SGH-I727
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] magiconthetire:
Just back up your current ROM , wipe/factory reset, flash the two files in post #2, reboot, follow the steps and you will be done :thumbup:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] henslo:
Worked perfect, only thing was finding a radio that works best where I am. Using the T989

now :thumbup:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xtalxpert:
Worked for me, thanks!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Sparkplug90:
Ok, i have flashed the modem and the rom on to the phone....but every time i try and use the call code i get "Not registered on network"

any ideas
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xtalxpert:
Did you follow instructions from the first post including this last step of unlock procedure?

Go to dailer screen. press *#197328640#

The screen will change to the hidden menu as soon as you hit the last # key in the dailer

press [1]DEBUG SCREEN

Press [8]PHONE CONTROL

Press [5] SIMULATION

Press [6] NETWORK LOCK

Press [3] PERSO SHA256 OFF

Wait exactly 30 seconds

press the menu key on the phone and select back option. This will take you back to NETWORK LOCK screen.

Press [4] NW LOCK NV DATA INITIALLIZ

Wait exactly one minute and reboot the phone.

Your phone should be unlocked.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] javanutsy:
Worked great! Thank you thank you!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Sparkplug90:
lol i was forgeting the star at teh beginning
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] cdragonm:
OK....I'm confused. My phone is an ATT SGH-I727, build number IMM76D.UCLF5, baseband I727UCLD2. I've done the steps far as I can tell, what am I screwing up?

Keep in mine I have a straight talk sim in my phone, and have never used ATT....ever. I bought this phone from CL.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] hackahero:
Works like a friggin charm!! Thank you so much this saved me from weeks of *****ing from my significant other for not buying an already unlocked phone!!! Thank you!!!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] droidbabyxda:
Flash both RoM and modem
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] gcretro:
Hello lart2150,

I have an all stock At&t i727. My about phone screen says: base band version: I727UCLIC3, Build #: IMM76D.UCLIC3.

Will the unlock method in your first post work? any risk trying?

Thx!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
It won't hurt out but out also won't work. You need the rom and baseband mentioned in the first two posts.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
If you follow instructions it will work. But you are already not doing that.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
damege my phone

Hey did I mention these steps but after doing this damages lei AT & T phones.

After doing this my phone turns itself off.

ay any way to reverse this or any procedimiendo draft?:(:(
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
i use this codigo to unlock my phone Skyrocket. *#197328640#

and steps

The screen will change to the hidden menu as soon as you hit the last # key in the dailer

press [1]DEBUG SCREEN

Press [8]PHONE CONTROL

Press [5] SIMULATION

Press [6] NETWORK LOCK

Press [3] PERSO SHA256 OFF

Wait exactly 30 seconds

press the menu key on the phone and select back option. This will take you back to NETWORK LOCK screen.

Press [4] NW LOCK NV DATA INITIALLIZ

Wait exactly one minute and reboot the phone.

Your phone should be unlocked.

but I did not know could damage my phone AT & T

after that my phone restarts, and in the start this try to turn on but no can.

remove the battery

i want any form to revert this

change the rom

chang the kernel

change the radio

and nothing

any idea ? plz
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
When all else fails flash the stock rom with odin.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
Show me plz

i dont know how make
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Do you have an i727?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
i have one SGH-I727 SKYROCKET AT&T
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
In the development forum there are stickies which tell you how to use Odin and return your i727 back to stick. Read them.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
but i know the odin read .tar .md5 .smd not .zip or .iso

all rom have format .zip
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Extract the tar file out of the zip using 7-zip. You can get the stock rom at sammobile.com. it's a zip file so you'll have to extract the .tar.md5 file from it
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
after ? just flashe ?

:(
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Put it in PDA, don't have repatriation checked and flash it.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
sorry but dont find any file .tar inside of rom.

i will change the extention ?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Where did you get the rom? From sammobile?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
no custom rom

i need sam mobil rom ?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Can you boot into recovery and do you have a nandroid? You could try that but if can't you're going to have to flash back to stock Rom, not a custom one.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
nothing changed after flash i have the same problem

reboot:crying:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] razielpr:
Mira tienes que ir a sammobile.com ve donde dice firmware despues en la casilla donde dice search device pones tu modelo y mas abajo vas a ver los firmware bajas el mas reciente y lo flasheas con odin.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fardileven:
ya lo hice y se reinicia igual ademas he notado que se calienta no mucho pero mas que antes. :crying:

incluso estando en el cwm se reinicia

creo que se jodio T_T
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] razielpr:
I have one and I unlocked it using this method.escribeme al PM a ver si te puedo ayudar.we can't use too much spanish here.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] ronyoung08:
Does a sd card need to be present in the phone?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
You should not need a sd card. flashing the right baseband and rom might be a tad harder with out a sd card but I don't think the unlock requires a sd card.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] brackit:
Works great! I can't believe it.

This worked great and was really easy.

I unlocked using my AT&T SIM, dropped in a T-Mobile SIM to double-check afterwards and it worked right away. I also did

*#SIMLOCK#

and the dialog that popped up verified network unlock as well. Thanks for posting this!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Ljdd:
How do I know its unlock even without a Sim Card till tomorrow?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Ljdd:
This method works, THANK YOU JESUS!!!1
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] PopcornKiller:
Need help

I need help. I don't have the final option "[4] NW LOCK NV DATA INITIALLIZ". I have the same 1 to 3 options, but my option 4 is "RAT_FREE_SUPPORITNG ON" and that all. No other options there.

Please help....

I have At&T Samsung S2 Skyrocket i727, Android version 4.1.2.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mrfeuss:
It's been a while, but I think you have to be on a specific release and radio. Look at the second post, I think that one specifies which versions you need.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] PopcornKiller:
Thank you, but that post refers to using CVM to flash to UCLD2. My phone isnt rooted, so how can get my phone modem to UCLD2?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Flash cwm or twrp recovery. Youi don't have to be rooted. But this will replace your stock recovery. You'll have to use odin to do this. Unlock won't work unless you're on the specific rom and radio.

Alternately you could odin the stock rom that includes that radio
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] PopcornKiller:
Is it UCLD2 or UCLE2 or UCLF6? I was able to get CVM and flashed using UCLD2 zip file but now the phone isnt starting up. It goes thru at&t logo and restarts and ends. I used the UCLD2 file that was linked in post 2.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
You have the right rom. Just do s factory reset in cwm
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] PopcornKiller:
I did installed from SD card, then did wipe data/factory reset, wipe cache, wipe cache partition, and wipe dalvik cache...the phone keeps restarting and made a loud sound at at&t logo then restarted and stopped.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Can you get back into cwm recovery? Hold power and both vol keys. When you see Samsung logo release power but continue to hold vol.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] PopcornKiller:
Ya i can get in to CWM without problem.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Wipe data again, don't wipe system, and then boot
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] PopcornKiller:
It goes to at&t logo then restarts, does this about 6 times and it stops, sometimes it will go to at&t logo and sometimes it just restarts after second samsung logo.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
That's not good. You're probably going to have to start over by flashing a stock rom with odin. Have you done that before?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] PopcornKiller:
Ya, im download the stock rom now. Going to restart this from beginning and see if it works
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Good luck. I'm guessing the ucld2 download was bad. Redownload that and check the md5.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] PopcornKiller:
Thank you so much. I was able to download another UCLD2 and was about to get it working then unlock it and got it back to 4.1.2. Verified it with T-mobile sim card and it works :)

Thank you.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Great
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mirbekatabekov:
If after flashing UCLD2 OEM Stock you do not see some of the menus go ahead and flash UCLD2 modem as well.

That is what I did to unlock and I was able to see all menus exactly numbered as OP's

Thanks
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pirahnasoft:
unlock code

Hi, i have a att locked skyrocket and i wanna unlock (of course) i follow every step in the op but when its pop up the menu, i see SO many other opcion! :

MAIN MENU

1 DEBUG SCREEN

2 VERSION INFORMATION

3 UMTS RF NV

4 GSM FR NV

5 AUDIO

6 COMMON

7 IRAT INFORMATION

so, idk what i am doing wrong, i flash both file ffrom #2post, and i read aaaaalll the tread, and nobody get my "error" someone plz can help me about this?

sorry bro, where do you get the unlockd code ? can u plz give that page?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
if you hit 1 do you get another menu with "[8]PHONE CONTROL"?

I think you need to read my first post again the list is what items your supposed to press not what the screens will look like.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] hedpe:
once I unlock the phone using the stock ROM, can I go back to another rom (e.g., Cyanogen) and will it remain unlocked?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
yes.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pirahnasoft:
THANKS!

OHHH i feel so dumb now! so many thanks! im from venezuela and is very difficult to get dollars even if I have money! so a BIGG THANKS!

there is the proof " Movilnet Vnzla, in At&t skyrocket"

pd; idont know why i get the 4G lcon, there is no 4G in movilnet just h+

pd2: i am so new menber i even can post img :(
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
I'm guessing you want to say ps (post script). Anyway the stock firmware shows 3g, h and h+ as 4g it's really stupid and I blame att marketing. to check what your phone is really connected with go into settings -> about phone -> status. Mobile network type should be accurate. CM 10 and 10.1 along with some custom roms properly show the network icon.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
I keep getting this. Some one please provide me the right files to flash. Im on stock 4.1.2 and im rooted.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
try using the firmware and radio from the second post.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
I tried looking for those file but no luck. Im new to this device so please ignore if im being little nubish. I have lg g2x before so this is completely different story.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
Quit being lazy
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
I Just unlocked my phone. Will it be safe if i want to switch rom now. And do i need to flash different modem when i install the new rom?

Thanks everyone.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] henslo:
Read the thread much?

Sent from my SAMSUNG-SGH-T769
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] justforgot:
Sorry i didn't read before that's because i didn't had time.

Thanks for being helpful and with those quick replies.

Now. what's the best Jellybean rom ,kernal and radiothat i can put on this phone.

I did read alot of roms but can't decide which one to choose. Little help here Please.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mtdew:
No best threads you will be reported.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] s1301950:
endless loop

Hi guys, got the jb installed, so as previous user have said, the option 4 is gone. So what options do i have? i can't just flash the modem. I'll have to flash the whole rom right? from post #2?

So i did that through twrp (put zip file in sd card, boot to recovery, ran the zip), and after rebooting, it ran into an endless loop. Someone else got this too:

http://mobility.forumsee.com/a/m/s/p12-9400-050834--skyrocket-ics-leak-flash-problem.html

Sounds like all i need to get to is the ICS stock rom running that modem right?

Ain't you guys all running the same SR as i am?

I must be missing something.

---------- Post added at 05:12 AM ---------- Previous post was at 05:03 AM ----------

i just read that (just 2 pages back, my bad) the link for the rom at link #2 might be bad?

can i go to sammobile and get I727UCLF6 and just flash the modem ucld2?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
no you need the correct firmware and radio. Do a factory reset to get out of the bootloop. If you're concerned about s bad download check the the md5
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] catchjeff:
What radio gives you the strongest signal.

I love saving money. Went from $90 a month to $50 a month. Thank you so much.

Quick question to those who have it working. What is the radio that works best for you? I have been getting nothing but the E symbol for my signal strength with the occasional H+ & 3g signal here and there. I am using beanstalk rom with I727UCMC1 radio

Thank you

Jeff
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] henslo:
Just flash radios till you find one thats best for your area.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] catchjeff:
Actually came up with the combination of Embryo 11 and the radio T989UVLH1 that has the best combo in my area, Trenton NJ. I have been getting 4G all day inside and outside, did not get E or H+ yet.

Hope this helps out the people in my area.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
The stock roms get a little confused check about phone->status and see what mobile network type is. I bet it's umts, h, or h+.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lordpipa:
After (5) SIMULATION I dont get NETWORKUNLOCK. All I get is

ERROR FATAL

SW WATCHDOG

HW WATCHDOG

PERSO SHA256 INFO

PERSO SHA256 ON

PERSO SHA256 OFF.

What can I do?

---------- Post added at 02:26 PM ---------- Previous post was at 02:25 PM ----------

On Att 2.3.6 Stock Rom Rooted
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bzzybfrm313:
Read the second post in the thread. You have to be on certain ROM and modem

Just perform a nandroid backup of the current setup, flash an appropriate ROM and modem, factory reset, reboot, perform the network unlock, reboot, verify it's success with a non-accepted SIM, then restore the nandroid backup and re-flash the previous modem.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lordpipa:
links on second post are not working for me

anyone have a mirror?

---------- Post added at 02:59 PM ---------- Previous post was at 02:57 PM ----------

Dev Host is Up again, nevermind Thank you for your help
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bzzybfrm313:
There is a thanks button ya know lol. glad to help:good:

Edit: don't forget to thank the op
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Khegobier:
This may be a stupid question... or it might not be... :confused:

If for some reason I need to Odin in the future, will that break this unlock?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] immaeetuu:
No.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Aimless Rambler:
Thanks!

I flashed the rom and modem in the second post and got the unlock. Thanks! My only question now is, and this may be asking for a flaming, but what is the best modem to use post unlock? I had been randomly flashing Roms as the mood hit me without paying much attention to modem version. I just switched over to TMob from AT&T after a brief encounter with Net10 (which was not worth repeating). Thanks ahead of time!

I suppose, in order to clarify, is there any way to check radio/modem version prior to flashing a rom?

Never mind ... I just reread Vincom's post for noobies ( http://xdaforums.com/showthread.php?t=1785999 ). Ha!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] proza:
Will this work on the following phone?

Virgin Mobile Samsung Galaxy S II HD LTE Smartphone

The Samsung Galaxy SII HD LTE packs a punch in an impossibly thin design, with a large 4.65" HD Super AMOLED display, dual cameras, 8GB built-in memory and the intuitive, high-performing Android 2.3 OS that's upgradable to Android 4.0. Stay productive and connected to the world around you with Bluetooth, WiFi, and dazzlingly fast data speeds.

Product Features

4.65-inch HD Super AMOLED screen: Enjoy stunning video playback, view photos, and browse the web on the large, gorgeous display that boasts 1280 x 720 resolution

Super-slim design: At less than 10mm thin and weighing just 132g, this smartphone proves that good things come in small packages

Android 2.3 operating system: Enjoy a fully customizable and intuitive smartphone experience, and gain access to hundreds of thousands of apps from the Google Play store

Power-packed performance: Experience fast, reliable multitasking, data sharing, web browsing and more thanks to the 1.5GHz dual-core processor and 1GB RAM

8GB built-in memory: Store your photos, music, and more with 8GB of built-in memory, which is expandable with an optional microSD card

Optimal connectivity: With Bluetooth 3.0 and super-fast WiFi, you can connect to a wide range compatible devices and take advantage of wireless hot spots

Capture great photos: Boasting autofocus, LED flash, and video capture, the 2MP front-facing camera is perfect for selfies and video chat, while the 8MP rear-facing camera takes incredibly high-quality photos so you never miss a memory

Thanks!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
I would not risk it. the question is will the radio work or will it HARD BRICK your phone. the method seems to works with all Samsung phones you just need to find the right radio that has the options.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] proza:
How do I knowmy phone is in UCLD2 or not?

Where can I find out more information about modem and radio?

Thanks!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Settings, about phone. Look for your baseband. That is your radio/modem.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] nawlage:
Since this apparently works on all Samsung phones if the radio supports it, can anyone shed some light on unlocking a pure stock captivate glide running unrooted gingerbread (2.3.6 UCKL1). As of now the ussd code accesses the service mode. I then hit debug screen > phone control > simulation and then 'full nv write test' is the closest option to what I need. Back one step in the phone control menu it shows network lock and network control but no options within to proceed. Is there a general gingerbread equivalent of the rom/radio set supplied in the OP that might work or is this jellybean only?

preesh
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
That's a even older phone You might want to look into the nv_data methods http://xdaforums.com/showthread.php?p=30870102 there's a few apps in the play store that automate it. Try searching in the captivate forums.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Khegobier:
Finally decided which T-Mo mvno to go with, and tried this again. Also finally figured out what I was doing wrong - I was getting stuck in a boot loop after flashing UCLD2 rom and modem... A factory reset fixed that problem and I'm happily unlocked. Thanks for the awesome thread!