Original topic:
MCK Code Unlock
(Post creation time:
08-7-2026 05:48 PM
)
315 Views
R
RunAI
Constellation
The device is currently experiencing an issue with network unlocking, as it appears ATT made an error during the process. I have been provided with the Network Unlock Code; however, I require the Mobile Carrier Key (MCK) code to successfully complete the porting process to T-Mobile.
Selected Answer
SamsungMod
Community Manager
08-7-2026 10:18 PM
in
Hey @RunAI and welcome to the Community! I see that you are trying to get your carrier transferred and ran into an issue and I can understand how frustrating that process must be entirely! As @LongHiker stated, you would need to contact your original carrier to receive the MCK Code to unlock the device as Samsung is unable to assist in retrieving a code from the carrier with a locked device. Thank you for posting, and I hope you get this resolved soon! 🙂
LongHiker
Galactic Samsung Care Ambassador
08-7-2026 06:15 PM
in
@RunAI If your original carrier was AT&T, then you will need to get that code from AT&T. They are the only ones who can provide it.
RunAI
Constellation
09-18-2026 05:15 AM
in
glizzy2252
Constellation
10-27-2026 12:35 PM
in
0 likes
brook96
Constellation
10-30-2026 06:51 AM
in
0 likes