
First you will need to obtain the IMEI (serial number) for your handset. Type *#06# from your handset. The number that appears is the IMEI. Once you have this number you need to contact the Mobile Operator Customer Service department or use an online Subsidy Unlock service.
![]() |
Device must be in Portrait mode. Hit the Dial button on the touchscreen. |
![]() |
Type #7465625*638*Unlock Code #. (Unlock Code is a unique 8 digit number). Device will reply: Network Lock Deactivated. |








What is the unlock code and how do I get it?
imdoomed: There is no universal unlock code, each phone has a unique subsidy unlock code. You can either contact AT&T or use an online subsidy unlock service.
but how do you find this online service…
can you help send me a link for online sunsidy unlock service site. thts freee
Name: Do a Google Search: “subsidy unlock code”
Unfortunately, I don't think any of the “free” sites will be very reliable.
Does this code really work?
Will att give out this code for free?
Also is there a way to get rid of all the content that ATT has on my phone? I do not want to be able to connect to the internet in any way shape or form.
I have the unlock from the carrier and inputted info per your instructions, but it doesn't work. the carrier told me to take out the sim card, is this correct? no message comes up .
the carrier told me to remove the sim card, turn back on, enter #0111* then enter the unlock code, this doesn't work either.
disturbed1236: Did you press the last “#” after the unlock code?
longlook: AT&T should be able to give you the Subside Unlock Code for free, but you might need to meet certain criteria. Not sure if you can delete the programs or icons in your phone.
firered: This site provides instructions for the Subsidy Unlock Code, which unlocks the Device from the mobile operator. It allows you to change your mobile operator who provides service through the phone.
enrique69: For this device, contact AT&T Customer Support. Or you can do a Google search online for “subsidy unlock code AND Samsung SGH-A877″
enrique69: For this device, contact AT&T Customer Support. Or you can do a Google search online for “subsidy unlock code AND Samsung SGH-A877″
cool, i got the number from at&t and your direction, and BOOM unlocked, your the man…
Awesome!!! Worked great!
how do i get the unlock code?
help me: You need to contact Customer Support from your mobile operator. Alternatively, you can find an online service that can provide the subsidy unlock code. The 2nd option you will need to pay a fee.
awesome !!!!!!!!!!!!!!!!!!!!!!!!!!! worked great !!!!!!!!!!!!!!!!!!!!!!!!!!!
ksm: You're welcome.
Hi. I just got a Samsung Impression and when I enter the unlock code it says, “phone freeze deactivation fail”. HELP!!!!!!!! It is a brand new phone and I would hate to lose it.
Lorie: Can you please tell me the key sequence that you typed into your phone?
I typed the unlock provided by at&t and did the sequence above with ¨#¨ at the end but the phone came up with the ¨the phone is freeze deactivation fail¨ Could you please help me and tell me what I can do
Martineduardo: Did you ask for the Subsidy Unlock Code? This is different that the PUK Code.
This is what they gave me: Imei: 35701103xxxxx Code: xxxxxxxx, now the phone is frozen and don't know what to do.
Martineduardo: The code that you asked for, was it the Subsidy Unlock Code or the SIM PUK Code? There is a difference between the two. Make sure you get the correct type of code.