So you want to unlock your Samsung Blackjack? Unlocking your Blackjack cell phone will give the ability to put the SIM card from any carrier in it so you can use on their network. This will let you use the incredible Blackjack on Sprint if you want too. Now you can go overseas and use a pay as you go SIM from a local carrier. Cool right?
I know my earlier post on “How to Perform an Application Unlock on the Blackjack” caused some confusion because some of you thought I was talking about a SIM unlock. I’m hoping this information helps.
How to Unlock Your Blackjack:
- First you’ll need to get your Network Control Key. The Network Control Key is a 8 digits unlock code. There are two paths to get your NCK. You can either call AT&T or ask for it. You may have to ask them to put you through to their tech department. If you’ve never signed up for AT&T’s Service they may not give the code because your not a customer. The other way to get the code is to contact a cell phone unlocking service. They usually charge around $20 to get this code for you.
- Once you get the Network Control Key power off the phone.
- Remove the SIM card.
- Power on the phone back on.
- Enter #7465625*638*
- Enter Network Control Key.
- Press “OK” Soft key, not the Send or OK hard key.
- Power off the phone.
- Reinsert the new SIM card.
Based on the response from people that have tried this I assume it works. I have no need to unlock my phone because I live in the States and I enjoy using AT&T as my services provider. So please let me know if this does not work on either the original Samsung Blackjack or the Blackjack II. Good luck!
{ 105 comments… read them below or add one }
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
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.
do you know how to do a sim card unblock for the moto q? thanks…
i tried it on my blackjk with my nextel and all i get is emergency service
help
michael
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!
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
These are the exact instructions that ATT gave me over the phone; so it should work
what is the “OK soft key”?
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?
you should tell me wat i should ask wen i call AT&T for the network control key.
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 .
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
Please respond ASAP as if it is locked I need to send it out now in time to leave. Thanx
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.
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?
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
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
never mind i go it
thanks
hey, so i got the NCK, but will it work on all phones?
or just the one that is supposedly associated with that account.
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.
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
I’ve called AT&T for the unlock code but they won’t give it to me. >__
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…
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!
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.
In your instructions, where is soft ok key?
Thaks.
Hey Cory, thanks for the info. Your post was more detailed than the tech on the phone!
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?
need to unlock my samsung blackjack ne help plzzzzzzzzzzzzzz?wanna use another sim while travelling. cant get it frm my service provider
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.
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
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.
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
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
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.
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…
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.
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.
if i buy a phone unlocked do i have to do this
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
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?
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.
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?
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
b/c every persons code is different.
- This comment was edited by the Admin.
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.
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.
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
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.
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.
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