yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] korahepop:
unlocking?

Hi gays.. :) I was read this thread from beginning and just want some help, some suggestions.. :)

My phone is I727

android 4.1.2 stock

baseband version I727UCMC1

build number JZO54K.I727UCMC1

AT&T provider

My phone is rooted, flashed first TWRP and doing beckup. Then flashed clockworkmod recovery and do backup too (just in case). :)

I am from Bosnia (Europe if somebody don't know where is it :D ) and want to unlock phone. Try from first post but there is no options

[4] NW LOCK NV DATA INITIALLIZ and I know: must flash ROM and MODEM from second post. :D

My question is: did this ROM and MODEM work on my phone (I hope that not brick my phone for ever :D )? And before flashing this ROM, did I

must wipe everything: wipe data/factory reset, wipe partition cache, wipe delvik cache, format data, format system, format cache, or just some of this? :)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] cschmitt:
Yes, this ROM and MODEM are an earlier version for I727, it will work on your phone (why would we tell you to flash a rom that would brick it???)

Make a nandroid backup of current rom to SD card, flash the rom and modem zips, wipe (format) data only, reboot, follow unlock procedure, reboot, verify sim unlock, then restore nandroid backup.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] korahepop:
OK.. I will try now to unlock..already I have backup. :) I will post finally result! :D Thank you! :)

---------- Post added at 05:05 PM ---------- Previous post was at 04:44 PM ----------

Yeaaah! I did it! My phone is unlocked! Thank you thank you thank you!!! As I see..now I can back old stoc rom and must have modem for its. In my case my rom is I727UCMC1 and must have modem UCMC1. Is that correct?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] slimlo:
work like a charm on my rogers sgh- 727r .. thx for the post :)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jerms2000:
the best this post show be at the top of this thread

unlock my s2 to digicel jamaicA
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] satishny:
satisfying winelso

When I enter *#197328640#, nothing happens. Should hit the "dial" button after this? Should I see another screen after I enter that key sequence on the dialer?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bzzybfrm313:
READ 2nd post
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] artbybart:
It worked!!

Just confirming that it has worked!! Thank you so much!! As per second post, I didn't get the ' PERSO_NV_INIT is SUCCESSFUL'. However, the phone does get unlocked!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] DarkboyR:
Works as expected... just flash the rom/modem combination and read the instructions on first post and you're good to go.

Thanks Very Much!!!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dlightman:
Very nice work! Much appreciated.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] unni_kmr:
Unlocked my AT&T Skyrocket. It now works perfectly with a T-Mobile SIM. :victory:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Nepdroid:
Thnx. Unlocked my skyrocket
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] thafath:
Thank you. Unlocked my skyrocket and another 2 phones S2 HD Lte (i757m) and S II - hercules.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pitbullmommy45245:
Will this method work on a note 2 that's thru T-Mobile
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
really, you want to flash firmware meant for i727 onto the note.........no u cant

Posted w/xda app w/ i727R

MY STICKIES

| ROMS | KERNELS | FIRMWARE | RADIOS | HOWTO'S | GUIDES | INFo |

NEWB GUIDES TO: RESTORE TO STOCK | USE ODIN | INSTALL CWM | ROOT |
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
The general method will work but not with this modem and rom. Check your note 2 variant(att, t-mobile, verison, etc) forum for a modem and rom that works with your phone. The menus might also be a little different and there's likely a post like this in the forums for your phone.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bds120:
Hey THANKS!!! Finally got this phone to work with my T-Mobile sim. Now my question I have is about the data. My data does not come on until I make a call. It will stay on for a few then turn off. Anyway to fix this. I am on Skyrocket with the rom/modem stated in Post #2.

UPDATE...nevermind: Restarted the phone and we are good to go. MOVING FAST!!! So happy to be off of Sprint Network.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Linuxnizer:
OK,

Here is the deal, I have i727 with latest firmware/modem (UCMC1). I tried downloading and applying the modem on post #2 which is UCLD2. No luck, rebooting ..phone freeze on samsung logo. Back to TWRP, factory reset, another reboot, I lost the phone app , settings crash!

So...

Do I need to downgrade the whole firmware? GB?

Cheers.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Yes, you need the firmware and radio
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Linuxnizer:
For some reason, that firmware from post#2 didn't work for me, I found another one that did work, from this thread http://xdaforums.com/showthread.php?t=1579307, direct download link: here

So, I installed firmware via TWRP, then installed modem from post #2.Factory reset, and things did work :) thanks everyone and especially to the two guys in post#1 & #2.

My phone is unlocked now and I can use it with an international operator. Moreover, I upgrade back to the latest stock UCMC1 and didn't lose the unlock :)

Cheers,
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] kcory2k:
whoops!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Hälftebyte:
Thanks for this! I was able to unlock my ATT S3 on UCDLK3 4.1.1

The steps I took were slightly different since the menu setup is different with the GS3
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] AndroidGee209:
So to be specific i have to have a non at&t SIM while i do the unlock steps?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lingowistico:
This is what it says in the OP. I'd guess you don't need to have any sim in your phone while you unlock your it.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pw59:
how to flash

how does one flash the 2 files in post #2

i am trying to "flash" using odin, but odin cannot find the 2 zip files i downloaded

is there a sticky instruction guide i can use to flash these two files?

thanks
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] henslo:
Flash through recovery, after flashing ROM flash radio, then proceed with unlock.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pw59:
Hi Thanks, I was able to flash the 2 files in post two and get the "success" message after following unlock instructions

Which rom should I go with now? Go back to stock rom 4.1.2?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] henslo:
Flash any Rom you like, :beer:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] rodmc123:
i just bought a skyrocket (at&t) from ebay.. it comes totally stock with gingerbread.

can i do this process or i have to flash something to do it??
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
The process works on ics. I'd flash the ics firmware before trying it. GB is way old and you're going to want to update your os anyway.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] rodmc123:
but if i upgrade the phone to the stock official ICS, is enough to do this ? or i have to flash something else?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] pw59:
i tried flashing official jellybean os and lost my unlock and root functionality

do i need to skip the "wipe" step when switching back to official jellybean os away from the ucld2 roms?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
I assume you flashed the os in Odin. It's normal to lose root. You should not lose unlock. You'll have to do a factory reset after Odin or you'll boot loop. Just re-root after you use Odin.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
no one else has reporting lousing the unlock for any kind of wipe. If you flash the offical rom you won't have root. You should always wipe when you are going from one rom to another. Did you try a sim card from another provider before you wiped and flashed jb?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] AndroidGee209:
So i tried with 2 different Non- At&t SIMS , First was with a disconnected T-Mobile SIM and got SIM Provisioned MM#2 , Then i tried again Metro Pcs SIM connected SIM and got Phone not allowed MM#6.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] MMount76:
Am I sim Unlocked?

Hello and let me first say thank you for sharing your knowledge of unlocking these devices with us. I just have a couple questions. I have tried this procedure several times and can not seem to get sim unlock. I was wondering if maybe I should flash back to stock un rooted and then try this procedure. When I insert a foreign sim like T mobile all I get is Not Registered on network when I try and place a call. I have never seen where I could enter an unlock code. I bought the phone second hand. It was not unlocked I know when I got it cuz I had to get a ST att sim. I have tried a couple different sims and get same with all even on a net 10 sim. Is it possible the sims are married to the devices they come out of? I get signal bars but when I go to about phone and network status I get unknown network. I get a signal strength reading but nothing else. I have flashed different radios and nothing. I was wondering if maybe there was something I was missing or maybe my phone just wont do it. I searched and searched trying to find a solution before I posted. I hope I don't get bashed for this. Its my first post. Thank you for all you do here. This is the best website on the net. Thanks again.

P.S. I can sit in the nv initializ screen forever and never get a success message. Have never ever seen anything happen in service mode. Also when I do *#SIMLOCK# it shows everything is off.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] BaSingSe:
Success with some Twist

I'm a newbie and this is my first post here. :laugh:

I just unlocked my SGH-I727 by following the instruction here. This is what I did:

1. Root the phone;

2. Install CMW recovery;

3. Back up the latest 4.1.2 rom and all data. Flash using the two files described here at the beginning;

4. From the dialer, enter the maintenance menu and unlock the phone. I put in a TMO SIM from step 1;

5. After reboot, TMO sim card just works fine;

6. Restore the original 4.1.2 backup from backup. After the boot, the phone stopped working :crying:

7. Restore the ICS backup from step 5 (working phone). Got in the dialer and found nothing to be done. Phone works fine;

8. Flash the 4.1.2 stock ROM through ODIN.

9. After reboot, everything works fine. Phone works!

I do not know why my phone stopped working after restored from the original 4.1.2 ROM. I did not install anything else.

Anyway. Now the phone is considered unlocked (at least TMO SIM works). Thanks for the instruction. I'll try to unlock the S3 next.......:p
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Devilish_Angel:
... i was runnin ICS with baseband I727UCLI3 and the method ddnt work. then i flashed UCLD2 and BINGO !!! i got the phone unlocked runnin Indian Sim ...
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] M-LinkInt.:
Great Find!!! Thanks

Thanks alot for this. Worked great for me, though i also never got a success message either. :good:

Note: I did follow the directions to the letter and then upgraded to Stock JB using TWRP. It worked after the upgrade but i did not use Odin, I used TWRP and a flashable zip! Downloaded the flashable stock rom from here - http://xdaforums.com/showthread.php?t=2228486 I also used the odexed version (don't know if it will matter if odexed or deodexed???)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] scgt1:
Ok help a newb out. I recently went with the cm Kitty Kat what exactly has to be done and what files do I need to unlock my Skyrocket?

Looking to tell ATT to piss off using their $.61 charge they added. Not sure if it will work with it being well over the 30 days they added it. :( Will try though.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Just read the OP. You need to be on the firmware and modem specified there. You'll have to odin it if your on cm now.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] scgt1:
I'm assuming:

Links to CWM flashable zips:

UCLD2 modems: here

UCLD2 OEM Stock, rooted: here

from the second post?

Odin it?

Like I said Newb lol
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Follow this guide to return to stock. Use the ucld2 firmware. That will get you on the correct firmware and modem. http://xdaforums.com/showthread.php?p=26056924
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] netanel.zeevi3:
work on stock jelly bean ?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
No
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
You should read the op bro
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mabomod:
He did say STOCK jelly bean, but I don't think there is one for s2 anyway, so the answer would prob be no.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] xcrazydx:
Read the op bro
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mabomod:
Look at his question, now back at my answer, now back to his question, now back to mine.

My post is now diamonds!

Outdated and lame but still can't resist.

If you still don't get it, please read the OP yourself again... bro.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] TheCybertronian:
Please read the OP
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] 425macchi:
Help!

I have no idea what happened. I followed the procedure but as soon as i flashed the second file, the modem file, my phone shut down and it will not turn back on. WHAT HAPPENED?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] ej8989:
Works on ROGERS i727R!
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] mabomod:
I get what you're trying to say. The post below it right? It looks to me he tested and confirmed it to work on a particular rom and tested to not work on a few others. However, I also gave a correct answer because there really isn't a stock jelly bean on S2 anyway. The only reason I replied to you guys is because you should at least answer his question like jd1639 instead of being smart /sarc.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] latinohot:
Successful with sky ics rogers version just changed the radio
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Smash2Bash:
Does not work with latest jb Samsung leak. Mostly likely due to the new radio.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] droidbabyxda:
Confirmed successful unlock using non-US SIM card. Restored Nandroid back-up and unlock persisted... however, I do have a question about the "re-flashprevious modem" ... I didn't get any back up of previous modem. I only did a Nandroid backup which I restored already. Is that enough?

Many many thanks!! I've been wanting to unlock my Skyrocket for use abroad for three weeks now.. many thanks to this thread I was able to without paying $$$!!! :victory:
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] crashpsycho:
If you reae the first page it explains why dude it works fine if you follow the steps
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Smash2Bash:
If you look above you would see I did it. I was telling others it does not work.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] Jack_R1:
Translating the misunderstanding above:

Well, it seems you need to drop to ICS / use one of the older modems / do both for it to work.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dvandam:
Has anyone gotten the 2G toggle to work after doing this unlock? I've unlocked 2 separate phones, tried multiple ROMS, AND used the unlocked RAT radios from Rogers and I STILL can't get my phone to force to that mode.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
You should flash a newer modem check out section 6 of http://xdaforums.com/showthread.php?t=1785999 I'm using UCLI3 but I have not looked at UCLK4 yet(note I'm runnning cm10).
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] cschmitt:
On CM9/CM10 go into Mobile Network Settings -> Network Operators, then Search Networks (can take awhile), then manually select the network name, back out to the Mobile Network Settings menu at which point 'Use only 2G networks' and 'Network Mode' should now stick. One catch, you'll have to do this dance following each reboot and possibly after coming out of flight mode.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] oldmacnut:
This method worked great for the 2 Skyrockets I got last week. However I have a T989 and was wondering if this will work for that device as well...I do know the 2 phones are different, but are they different enough that if I try this on my T989 I can do some damage to it?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] promiseofcake:
What does the phone normally do when you insert a non-AT&T SIM card? I put in an Alltel India SIM and it popped up with the Alltel settings, does that mean I am good to go?

If so, this persisted through: doing the methods outlined above, restoring Nandroid to CM10, ODIN flashing to UCLF6, and reinstalling CM10 from scratch (without Nandroid).

It looks pretty bulletproof if it persists through ODIN.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] dvandam:
ThankYouThankYouThankYouThankYou
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] droidbabyxda:
Mine inititially asked for "unlock SIM code" I just hit back (prior to unlocking steps). After doing the steps above, it just turns on normal and the non-att network gets signal.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
it works but you might want to read http://xdaforums.com/showthread.php?p=34898013#post34898013 for the T989
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] desibrain:
Any other way to check unlock ??

is there any other way to check that unlock happened, other then inserting non AT&T sim? everyone i know has att service. :(
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
If you really want to know and don't know anyone with t-mobile you can get a really cheap sim of ebay http://www.ebay.com/sch/i.html?_sac...&_dmpt=Cell_Phones&_mPrRngCbx=1&_udlo&_udhi=2. I got one for $1 a while back to test before my wife went to the UK.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] qiuness:
Hello, trying for the past 2 hours to unlock.

i've read the thread but i`m at a loss what's next:

This is my current setup:

MODEM: i9300PODLJ1

I flashed UCLD2 modems zip, but i still have i9300PODLJ1?!

Running XXDLJ2 Build and the network unlock menu does not exist with the PODLJ1

why did the UCLD2 modems fail to update?

Thanks
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] crashpsycho:
I don't think this method works on your device dude this is only for certain devices and if it doesnt appear and you have the right device I would try wipe cache and dalvik and reboot
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] bribery:
Hi,

I flashed both ZIP files posted at the beginning of this thread. Now I turn on the phone and it takes a considerable while to get past the initial screens. The new rom is very slow, and when I enter that code *#..... nothing happens.

What do I do?!

It's a i727 w/AT&T

Kernel version:

3.0.8-perf-I828UCLD2-CL363164
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] droidbabyxda:
Did u flash both?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
what phone do you have?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] 425macchi:
Galaxy S3 for At&T SGH-i747...

Im assuming I hardbricked it but that came as a shock cause I thought I knew what I was doing. Have been working on fixing it ever since.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] lart2150:
You should not have flashed a modem for the skyrocket on your phone. jtag repair or warranty replacements are likely your only hope of fixing your phone. This thread is only for i727.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jd1639:
Did you flash the modem and stock firmware referenced in the op? Because if you did, they're for the i727

---------- Post added at 01:00 PM ---------- Previous post was at 12:41 PM ----------

I hate that when it happens:)
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
If u knew what u were doing why did u flash something not meant for ur phone, just saying

Posted w/xda app w/ i727R

MY STICKIES

| ROMS | KERNELS | FIRMWARE | RADIOS | HOWTO'S | GUIDES | INFo |

NEWB GUIDES TO: RESTORE TO STOCK | USE ODIN | INSTALL CWM | ROOT |
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] jimi.martin87:
hey where did you get the code for only 8$?
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] vincom:
ebay, but that was last year, it was cheaper for rogers phones then att's, then later the free method came out
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] smalis:
Will this method work if (a) no sim card is inserted or (b) an inactive ATT sim card is inserted?

Thanks.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] henslo:
Have to use an active sim card, otherwise you'd never know if it were unlocked. Use a friend's or relatives sim card.

Sent from my SGH-T999L
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] keith134:
need help flashed the cmw files and do the steps to unlock and i cant get it to work
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fvbt:
I just got a SGH-I727R (Rogers) phone from my friend with I727RRUXLF3 stock installed and I was wondering if this procedure is still "THE" current way to unlock this phone for another network ? (PDA: I727RUXLF3 PHONE: I727RUXLF3 CSC: I727RRWCCLF3 (Android 4.0.4) )

Also, how does setting SHA256 OFF affect security ? What does this really do ? Should I try setting it to ON afterwards ? Is it at ON by default or is it set at "not set" which isn't an option.

Also, do I really need to flash another modem to do this ? (I can get to that part of the menu with this current modem installed)

Also, would setting it to SHA256 OFF affect my possibility to upgrade via Kies and would a upgrade revert the lock to ON ?

Any insight would be helpful.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] fvbt:
Ok, after all, I finally noticed that the option [4] wasn't available with my current stock firmware (UXLF3)

My questions now would be:

- The files provided in this thread are: "UCLD2 modems" and "UCLD2 OEM Stock, rooted" which are TWRP and CWM flashable. Right ?

- With TWRP (say I only install TWRP, without rooting my phone), Can I backup my current UXLF3 version ? Will those backups work to put my phone back to it's original state ? Or should I consider using sammobile's odin UXUMA7 package (in PDA, I assume) to put back my phone to the original stock & recovery state ? (Suggesting this UXUMA7 version since it's the only one I managed to download from sammobile).

- So, the process would be:

1. Install TWRP via Odin

2. Copy those 2 files onto my internal drive.

3. Flash those two files (somehow, never opened TWRP yet)

4. Do the procedure from this thread.

5. Test to see if my non-rogers SIM works.

6. Put back my phone to stock version using Odin to wipe everything, including recovery, using the I727RUXUMA7_I727ROYAMA7_RWC.zip from Sammobile.

7. At this stage I'll have a stock phone with stock recovery, stock phone, stock system, kernel and csc, right ?

8. Phone will still be networked unlocked, and unrooted and I won't have TWRP installed.

9. My phone will still be recognized by Kies and could install updates (if I was to Odin not the latest version).

Does those steps make sense? Am I wrong at any of those stages and statements ?

Also, can this be reverted ? (not that I can think of a reason to do so, but it would be nice to know)

*Sorry, I'm a total noob and trying to get a grasp of how it'll go down.
[AT&T Samsung Galaxy S II Skyrocket SGH-I727] TheCybertronian:
Switching to tmo by the end of the month so great info and thanks.