Unlocking Your Samsung Blackjack in 4 Easy Steps - SGH-i607 Mobile Smartphone Hack  on February 29th, 2008

[...] Please note this not a SIM Card Unlock, this is an Application Unlock. Please read the post “Unlocking the Blackjack SIM Card” [...]

geo  on April 2nd, 2008

wuts up so i tried to get the NCK from at&t but i had no success my friend that has his phone service with at&t called for me but i dont kno what exactly to say to them can you help me out on this one

Humz1m0t0  on April 2nd, 2008

For my BJII, I had to get a T-Mobile sim card and put it in to got it to unlock, and this was the AT&T tech’s last resort. only 5 tries before you get locked out, be careful.

satoriman  on April 3rd, 2008

do you know how to do a sim card unblock for the moto q? thanks…

michael  on April 25th, 2008

i tried it on my blackjk with my nextel and all i get is emergency service
help
michael

vickievick  on May 4th, 2008

i used to be an at&t customer and purchased a samsung blackjack sgh-i607 cell phone, i am with t-mobile now and would like to use my phone…. how can i get the network control key? please help!

Lee  on May 7th, 2008

Yes, the instructions work. I called AT&T and they were very helpful.. the second time. The first girl I spoke to spoke at 200mph and just wasn’t interested in helping me, just wanted to start a ‘file’ and other complicated stuff. So, I called back the following day.. spoke with a very helpful lady that got me the unlock code within minutes.
So, my advise… keep trying, you’ll get someone ‘human’ eventually. Good luck

Anonymous  on May 23rd, 2008

These are the exact instructions that ATT gave me over the phone; so it should work

CraniumDesigns  on June 22nd, 2008

what is the “OK soft key”?

Akijione  on June 26th, 2008

I recived my Network Control Key after trying several times with AT&T. I followed the instructions, step by step and at the end I kept getting an Sim Card Error. I stopped after the third attempt. Do I need to put in an different sim card to unlock my BlackJack II?

chrish  on July 9th, 2008

you should tell me wat i should ask wen i call AT&T for the network control key.

slimkid101  on July 14th, 2008

i have a blackjack i607 and i want to unlocke it cingular wont give me the dam code .. is there eny other way to get the network control key .

Robert  on July 15th, 2008

Cory,

I recently ended up with a BlackJack i607 (AT&T) through my sisters ex (though not a fun story, it is a hell of a phone), and as I will be traveling to Mexico, I need it to be unlocked. I have inserted a telcel SIM (from Mexico) and the phone turns on just fine and I can operate it equally well, so, am I unlocked or not?

Bob

Robert  on July 15th, 2008

Please respond ASAP as if it is locked I need to send it out now in time to leave. Thanx

Anonymous  on July 18th, 2008

Hey I tried calling the AT&T but they ask sooo much questions…. n i just wanted to ask them for one simple thing… n i tried using my friend’s number but I don’t have his dad SSN… so I’m hoping someone call and ask for me ? and e-mail it to me ?

my IMEI is : 355460010627187

and my e-mail is imakevil@yahoo.com

Thanks if you could. and I would much appreciate it.

koji  on July 23rd, 2008

This is silly, The whole IDEA about unlocking the simcard is to do it without the carrier interaction. Especially iof u are not a customer. Per your instructions, you cannot do it without carrier and the carrier will give you exact instructions~~so whats the point in your blog here?

Anny  on July 24th, 2008

can you please provide me with the network control key ? i do not live in the usa and i bought this from radio shack who didn’t inform me about this network control key . PLEASE .. i cannot find any place that is able to unlock it for me . PLEASE help

Av  on July 25th, 2008

Hello i’ve gotten all the necessary NCK code & i was wondering which key is THE softkey to press at the end of step 7.
if i only get 5 tries i want to do it right.
thanks a bunch i appreciate your response

Av  on July 25th, 2008

never mind i go it
thanks

Some dude  on July 25th, 2008

hey, so i got the NCK, but will it work on all phones?
or just the one that is supposedly associated with that account.

ramboe27  on July 29th, 2008

This instruction works and ATT rep walk me trough it and my blackjack is unlocked now thank yoy for the tip and instruction they 100% work.

DJPJ  on July 30th, 2008

I CALLED AT&T
THEY WILL DO IT FOR FREE
JUST ASK
TELL THEM ITS FOR INTN’L TRAVEL
THE DO IT ON THE PHONE
ITS SO EASY 10 MIN AND ITS FREE
NO ITS NOT FREE I PAY A MONTHLY BILL

WaterIsLife  on August 16th, 2008

I’ve called AT&T for the unlock code but they won’t give it to me. >__

Sum yung goi  on September 1st, 2008

Ok I tried this unlocking business for a couple hours. First I tried that above referenced tip. No Dice. Called AT&T directed me to Samsung. No Dice. Put in my non-AT&T but active SIM card in and put the unlock code in. Worked like a charm. Here is the site that helped me: http://www.gsmphonesource.com/unin.html
hope this helps others…

Amanda  on September 9th, 2008

K so I have sprint. I got my roommates old phone. A samsung blackjack from at&t. How do I get the network key? I don’t have at&t.. can I still unlock this phone and use it with my sprint simcard? please e-mail me a response?! mandiy19@Hotmail.com
thanks so much!

kgangulw  on September 11th, 2008

I purchased a BJ (i607) on ebay. I’m overseas and not in USA. Since my BJ isn’t unlocked I called AT&T tday and they need to know the 10 digit wireless account number so that they can call up the history on the phone to see if the phone is over 6 months old.

When i said I do not have this, the lady said she cannot proceed without it. I can easily get this unlocked for a fee but since I have heard AT&T does this for free, was wondering how I can go about getting this sorted. any ideas please. thank you.

chrston  on September 18th, 2008

In your instructions, where is soft ok key?
Thaks.

jrakastyles  on October 13th, 2008

Hey Cory, thanks for the info. Your post was more detailed than the tech on the phone!

Duncan Staggs  on October 23rd, 2008

Hey man, I got a Black Jack 2, and I guess it’s sim locked. Had it in my pocket, and pressed buttons by body movement (workin on an oil rig, still here), the phone says type in a1b2c3, and it will unlock. It don’t. I’VE SPENT HOURS FIGHTING THIS. I got so frustrated, I hung myself….. but the rope broke!!!!! Any adice?

vickyyyyyyyyyyyyyyyyyyyyyyyy  on October 29th, 2008

need to unlock my samsung blackjack ne help plzzzzzzzzzzzzzz?wanna use another sim while travelling. cant get it frm my service provider

Kopfjaeger  on November 2nd, 2008

So is the Network Control Key different for every phone or is there a single Key for all AT&T phones? Can someone help me, I just bought a Blackjack for my daughter and we have T-mobile.

Anonymous  on November 3rd, 2008

ok whenever i turn my phone on to start the steps i hit the button on the phone to unlock it but there is a timer and i cant get to the phone to stop the timer and it jus goes to the screen and it stays locked.. any help

Khuram  on November 9th, 2008

Dear i have Blackjack 2 SGH i617 in pakistan. When i insert my SIM into it poped for Network PIN plz help me to solve this problem.

hi  on November 10th, 2008

it is good idea, i am now in Cambodia. I canot contact anyone to get PUK code. can u help me. I am using S. Bjack 2

GoldStar611  on November 27th, 2008

I called att and asked for the network control key. Of course they asked why and I said that my contract was up and I am able, by law, to unlock my phone. The lady knew I was right and asked a few people what software to load up, asked me for my IMEI and gave me the key. Jusk ask politely and let them know you know the laws

KAYLA  on December 3rd, 2008

I’m going to be honest, me & friend found a BlackJack II on school campus. We went through the process of lost & found and no one claimed it after several weeks, so now the phone is mine. Unfortunately the device is locked and needs a specific password to unlock it. It gets to the point it will ask type in “a1b2c3″ and it’s suppose to unlock. It doesn’t, it then asks for the password again. What can I do to make this phone work? It’s very frustrating, & i’d love to be able to use this phone.

Sharon  on December 15th, 2008

Kayla & Others,

My former brother-in-law gave me his Blackjack when he “upgraded”. I do not have his phone # associated with the phone or anything. Found the IMEI number (instructions here: http://www.wikihow.com/Find-the-IMEI-Number-on-a-Mobile-Phone) and then AT&T’s tech number (1-800-331-0500 – ask for tech support and no you don’t have a number associated with this account) and called. When tech support came on, I told them my BIL gave me his old phone (he asked for the model) and said his contract was up so I could call and unlock the phone. He asked for the IMEI number, which I provided (15-digit number). In just seconds he gave me the unlock code (8 digits). That’s all the information I had to provide. I followed Cory’s instructions to the letter and received a message that the phone was successfully unlocked.

Total time…maybe 2 minutes tops. HTH!

Kayla – Have you tried taking the battery out? Alternatively, maybe if you got the IMEI number from the battery compartment as suggested in the link I referenced, maybe Tech Support could reset the phone, thus releasing the keypad lock/password for you. ??? worth a couple minutes phone call…

soulfly8  on December 16th, 2008

I wanted to use my Blackjack with Sprint. I have already unlocked my At&t Blackjack, then I called Sprint and they said that I can not do it since they are on CDMA network and At&t are GSM network.
Is there a way that I can use my Blackjack with Sprint?

Thanks.

jack  on January 1st, 2009

Sorry soulfly8, AT&T and Sprint use completely different networking technologies (GSM vs CMDA); I believe that this means that there is no way to use your Blackjack with Sprint.

Hey  on February 2nd, 2009

if i buy a phone unlocked do i have to do this

Hey  on February 2nd, 2009

more un my last comment i mean if i buy a blackjack 2 UNLOCKED do i just put my sim card in and it just works?????? HELP

Maddie  on February 12th, 2009

I have an at&t blackjack 2 and i would love to be able to use it but i have tmobile now. How can i get this unlocked so i can use it without paying?

petemckelvey  on February 23rd, 2009

Note: Tell the AT&T representative that you will be going out of the country and plan on using another cell service.. this way they won’t suspect that you actually just want their phone and another service.

jon  on February 23rd, 2009

hi! i got a samsung jack SGH-i616 (from fido canada) but nobody can unlock it here in LA. i bought an unlocking code online but it didnt worked. i brought it to a wireless store but got exactly the same code.so anybody can help me please?

Anonymous  on February 25th, 2009

If people have the code to unlock the black jack why not just post it. Or the net work control key it would make it so much easer for the rest of us. Not to have to go through mess with att

Anonymous  on March 1st, 2009

b/c every persons code is different.

- This comment was edited by the Admin.

Regina  on March 1st, 2009

i bought a used blackjack sgh-i607 from my son n law. when i put my sim card in it asks me to place an unlock code. i called att and they gave me a puk code it unlocked the sim. then it asks the following THIS PHONE CAN ONLY BE USED WITH A SPECIFIC SIM. ENTER THE UNLOCK CODE OR INSERT AN APPROVED SIM. (phone pin). Nothing works! help!

i tried 1,2,3,4 0000, n the last 4 of my phone #.
My email addy is rdeleon17@gmail.com if anyone can help.

Buy Adobe Photoshop  on March 6th, 2009

Woohoo! I called Cingular/AT&T technical support and told them I bought a used cell phone at a fleamarket and that I am needing an unlock code to use it. They wanted to know if I am a customer, I said no, and they still helped me. She needed the code from inside the battery compartment and then generated the unlock code for me. She also gave me 3 different ways to try entering it. The only way that really worked was putting the code in the prompt that appeared when I put in my SIM card. Then I had to press * when prompted. PRESTO! I did have to do some more research to find out how to set up the TMobile internet, but it wasn’t that bad. Yippee, I’m all Blackjack now.

GMILLZ  on March 7th, 2009

i need to unlock my black jack 2..some body please give me that 8digit control key and what is the soft ok key on my phone..some body plese help it has to be a easy way…please send control key hit me up at kapitalmillz2@yahoo.com

misspurebeauy  on March 10th, 2009

COULD SOMEONE PLEASE HELP ME GET THE NETWORK CONTROL KEY NUMBER PLEASE…I JUST GOT A PHONE FROM MY COUSIN BUT I WANT TO USE IT ON T-MOBILE NOT AT&T…THANX TO ANYONE THAT COULD HELP.

anonymous  on March 11th, 2009

The instructions at the top of this page worked fine. Only trouble I had was getting AT&T to give me the unlock code. The agent was constantly putting me on hold, then said I had to give an email address so the code request could be entered into the system. I told her I wanted the code over the phone, and after asking to speak to her supervisor, she eventually gave me the code and the instructions.

Bodyroc  on March 27th, 2009

I have several AT&T blackjacks and have changed all of them to another carrier. All blackjacks have the very same code. Not like blackberry where every phone has a different code. Her’s how to unlock AT&T Samsung Blackjack.
# Once you get the Network Control Key power off the phone.
1. Remove the SIM card.
2. Power on the phone back on.
3. Enter #7465625*638*
4. 05075158 AT&T Network Control Key Code.
5. Press “OK” Soft key, not the Send or OK hard key.
6. Power off the phone.
7. Reinsert the new SIM card.
8. Power on and your all set.

You only get 5 chances to get it right or your phone will be permanently locked with AT&T.

fourakind  on March 31st, 2009

Try this for the i617 / Blackjack II

AT&T instruction that they email me were wrong, this worked.

Power on with incorrect sim, and when asked to enter network pin use supplied unlock code

No need to hold other keys while entering code

Anonymous  on March 31st, 2009

has anyone used the above network control key and verified that it is correct?

steve f.  on April 1st, 2009

For one thing, it seems that everyone says to remove the SIM card. According to Samsung, you leave the card IN the phone to unlock it. I tried 3 times (without SIM) and it finally worked when I did it Samsungs way.
The NCK is imei specific. They need the imei from your phone to get the NCK code. This must come from your service provider.
The “soft key” in question is the square button to the left of the jog wheel. NOT the main (round) OK button in the middle.
I have no idea where some of this info comes from, but dudes c’mon, you only get 5 tries before your phone “bricks” or permanently locks to one provider, So PLEASE try and give out the correct info. If anyone needs to know the real skinny on this, call samsungs’ tech support. They are pretty good.

steve f.  on April 1st, 2009

BodyRoc, I have no clue what you unlocked, but if you did it the way you describe, it surely wasn’t the SIM unlock. And whoever told you that all NCK codes are the same for all ATT phones flat out did not know thier *ss from a hole in the ground. Each IEMI number has a unique 8 digit NCK. I just yesterday unlocked my i617, and my daughters i607. I have unlocked 4 other BJII phones for myself and friends. Believe me, without the SIM card in, you’ll get a SIM unlock error (thus wasting each successive try)
You’ll want to tell ATT (or whom ever) that you paid full boat retail for the phone (no contract extention discount)and they will HAPPILY give you the number. Have the IEMI number from the back of the phone ready. It’s under the battery.

yanggemini  on April 16th, 2009

Hey Body Roc,
I tried your instruction. At first with sim card removed. then I got a network failure message. Then I tried again with sim card inserted, entered the Network control key and it said “you entered Incorrect MCC/MNC”, does it mean this network key was used?

smasher4  on April 22nd, 2009

hi. i found a black jack on the bus and i want to start using it . how do i unlock it ?

Brokenxnxpieces  on April 24th, 2009

I have a blackjack 2 i617 that I need to unlock. Can someone please send me the unlcok code and how to unlock it??

brokenxnxpieces@yahoo.com

mspeete1  on April 29th, 2009

IF THERE IS ANYONE WHO FORGOT THEIR PASSWORD.ALL U HAVE TO DO IS POWER OFF YOUR PHONE, PRESS AND HOLD (I) REPEAT PRESS AND HOLD THE UP BUTTON AND POWER PHONE BACK ON. YOU WILL BE PROMPTED TO PRESS 1 AND THEN Y OR N (PRESS Y) TO RESET IT. THEN GO TO SECURITY SETTINGS AND THE DEFAULT PASSWORD IS 0000. THEN JUST ENTER NEW PASSWORD.

mspeete1  on April 29th, 2009

CONTINUED FROM MY PREVIOUS MESSAGE ONLY IF U FORGOT UR UNLOCKED CODE FOLLOW THOSE STEPS

chris  on May 3rd, 2009

thanks, mspeete. u really know ur stuff

dee  on May 7th, 2009

Could someone help me? I bought a BJ2 off craigslist and he said it was unlocked but it isn’t. I called At&t and they gave me an unlock code and I followed their instructions but get a message “Sim failed” please help its my only phone and I have a tmobile sim. email foundagain2006@yahoo.com

Anonymous  on May 8th, 2009

i tried talking to att tech support and no one knew what they were talking about. eventualy i got a different unlock code that worked

1. put the sim you want to use in the BJ2.
2. you will get a message about unloocking the phone.
3. enter the unlock code
4. you will get another message about identifying you current network or something.
5. just hit the end key and your BJ2 is unlocked and ready to use.

reggie77  on May 10th, 2009

i just follow all the instructions from this forum it does work from my Blackjack II, now my smart phone blackjack2 is totally unlocked. here’s what i do, turn off the phone with sim card and turn it back on with sim card and Enter #7465625*638* after that enter the network control key code and your almost done! good luck.

Jackie  on May 12th, 2009

SHARON – THANK YOU!

I called once and the lady said I needed to verify that the BJ was activated with them before so that didn’t work. (My friend gave me her brothers BJ b/c well I needed it. Trying to use w/ T-mobile.)

So I was discouraged and then I called again and a nice, cheery Indian man (I think) helped me and gave me the unlock number and talked me through it (which is the same as what everyone has been saying to do). If you have common sense, you can do it too. I’m so glad this worked!

THANKS!

Tarun  on May 19th, 2009

Dee,

I had the same problem. I called Samsung at 1888-987-4357. They took my IMEI no. from the back of the battery and registered the phone. After that they gave me following instructions:

1. Power off the Samsung Blackjack 2 and take the SIM out.
2. Put the battery in and while phone is powered off, press the TOP (UP) portion of rotary jog dial and power button TOGETHER. Make sure you press the jog dial button first.
3. You’d be prompted for format. Press 1 now.
4. Press ‘y’ to confirm.

You phone is resetting now and please note, it would erase everything on the phone.

Now put the SIM card in and your phone should be unlocked. Please call Samsung if above does not work.

noname  on May 21st, 2009

Lots of rude, demanding replies.. Thanks for the blog! I found it informative.

Me  on May 23rd, 2009

Dee leave the sim in!

Anonymous  on May 31st, 2009

man plz i want it for free … nck plz help

your servent  on June 10th, 2009

you r my goddd!!! i unlock my blackjack….thank uuuuuu 100000 times ,,,your method worked at 100% good… thanks alot…;)

deezee  on June 16th, 2009

I read somewhere that I need to have the original SIM to unlock the phone, is this true? These instructions say to remove the SIM?

I actually don’t have the AT&T SIM anymore anyway, so I want to make sure I’m doing it right before I attempt to unlock it (since you only get 5 tries, right?)

Anonymous  on June 28th, 2009

people, read the damn instructions

msz  on July 2nd, 2009

I called Samsung and they told me to call AT&T to get the codes.