Comments on: Unlocking the Blackjack SIM Card

By: jack

jack — Thu, 01 Jan 2009 21:38:53 +0000

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.

By: soulfly8

soulfly8 — Tue, 16 Dec 2008 07:47:04 +0000

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.

By: Sharon

Sharon — Mon, 15 Dec 2008 18:04:04 +0000

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…

By: KAYLA

KAYLA — Wed, 03 Dec 2008 21:35:01 +0000

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.

By: GoldStar611

GoldStar611 — Fri, 28 Nov 2008 00:48:21 +0000

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

By: hi

hi — Mon, 10 Nov 2008 04:56:53 +0000

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

By: Khuram

Khuram — Sun, 09 Nov 2008 04:36:35 +0000

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.

By: Anonymous

Anonymous — Mon, 03 Nov 2008 22:48:57 +0000

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

By: Kopfjaeger

Kopfjaeger — Sun, 02 Nov 2008 11:47:12 +0000

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.

By: vickyyyyyyyyyyyyyyyyyyyyyyyy

vickyyyyyyyyyyyyyyyyyyyyyyyy — Wed, 29 Oct 2008 07:03:55 +0000

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