
UPDATED 03/05/2009
On the T-Mobile Network, to unlock the Samsung SGH-T919 (Behold):
- Power on without SIM
- Type in #7465625*638*Unlock code# (8 digit unlock code*) [See image below to see how it might look on the screen]
- Device should say: “Network Lock Deactivated”
- Phone may automatically reboot

*The 8 digit code can be obtained by calling T-Mobile Technical Support and given the representative the IMEI number. In exchange they will give you the Subsidy Unlock Code.
To obtain the IMEI number press *#06# on your mobile device. The IMEI number is the first 15 digits.
*UPDATE*
Follow this link to see instructions about configuring your unlocked device for Web, IM, Java, and MMS settings.
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Quiero opinar. Para que colocan este video de unlock del shg-t919 sino se ve el código de 8 dígitos.
m3m3: The video is to show that the instructions will work on the phone. There is no universal Subsidy Unlock Code for the phone, each phone has a unique subsidy unlock code.
t mobile wont give me my Subsidy Unlock Code because my account isn't active. is there a way to retrieve it out of the phone?
Melrose: The alternative is to use an Online Subsidy Unlock Code service. You will have to pay a fee and will need the IMEI number (serial number for the device) in order to obtain the Subsidy Unlock Code.
Alternatively, you could try and have a friend who has T-Mobile to call and request it with your device and their account.
i dont know if u can help but if u can pls send me an email on how if u cant email ill cheak back here periodically do fix my prob
when i turn on my samsung behold with a at&t sim in it says “phone freeze sim unavailable please contact service provider” is there a way i can get rid of this message because at this point it is stopping me from unlocking my phone
thank you
heyy i got the unlock code and i putin the wrong munber once and itsayy fone frezze wat shouldd i do too fix it reply asap!!
i put it in my unlock code from tmobile,but i dont know why it keep saying phone freeze deactivate failed”.I called tmobile to double check the code, and everything is right.I tried twice without simcard and twice with simcard.Can you tell me what i have to do?i talked to tmobile customer service, they said if i keep trying it will lock the phone forever.
Can the samsung behold, now unlocked, be placed onto an Alltel phone service? I see that the Behold doesnt always have a sim card, and Alltel doesnt use them, so I can kinda confused on whether or not I can do that..
maryvin: Sorry, the Samsung Behold SGH-T919 cannot be used on the Alltel network.
sunvar: Can you be more detailed about which keys you pressed?
hrx56: After entering the subsidy unlock code, are you pressing the “#” key? This should be the final key press.
nja023: Did you try to subsidy unlock your phone more than 10 times? If so, the device is permanently locked to T-Mobile in this case.
Can you recall what keys you pressed to subsidy unlock the device the first time?
im not reallyfollowing but is there a easy way to get it so i can unlock it
thank you for your help
nick
nja023: You can either contact T-Mobile Customer Care for the subsidy unlock code or you can use an Online Subsidy Unlock service. There is no universal unlock code for a device, each phone has a unique subsidy unlock code.
You won't be able to use the Behold with Alltel seeing as it uses a sim card, Alltel runs on CDMA they are two different networks.
what is T-mobile Technical Supprt contact number
adams50: 611 from your T-Mobile device. Or go to http://www.t-mobile.com and look for Contact Us.
Judd: Thanks for the comments.
adams50: 611 from your T-Mobile device. Or go to http://www.t-mobile.com and look for Contact Us.
Judd: Thanks for the comments.
nja023: If you enter the wrong subsidy unlock code too many times, it will be permanently locked to the default mobile operator.
and how do you get those dadgum dashes on the phone!? —– where is that, you don't show how you press those buttons in the video
sean419: The dashes will show up when you enter in the key sequence. Not to worry, just follow the instructions.