Note 9 ATT Network Unlocking Code Does Not Work

Why in God's.green Earth did you not buy the TMobile version?

And now your seeing the problem with it.  If you miss one more time with the code it's locked to att forever.   I would contact Samsung because the unlock codes they provided att are wrong.

@RECONLESS

the phones are locked at the factory...  Samsung does have the keys and they do provide ATT and Tmobile with the unlock codes for the phones...  Every phone that leaves the factory has a set of unlock codes and yes its a has of the IMEI and other things..  Apple does not since they control their own activation servers.

+1 on this.

I received my unlock code from AT&T for my Note 9 and it is incorrect. Contacted Facebook social support, we will see if they can help.

Since I posted the first time, here's what happened:

I contacted AT&T through the phone, they told me to call Samsung to get a new code since they handle that. Samsung rep said that AT&T handles literally 100% of the network unlock codes past the initial generation, so there's absolutely nothing that Samsung can do in this specific situation. Called AT&T like 5 more times after getting the runaround every time. At one point they said they re-verified / "refreshed" the network code, so their new code should work. It just so happens that the new code is the exact same as the original one (hint: they did absolutely nothing). I called in a handful more times before needing a network SIM PUK for my SIM card. AT&T couldn't give me one, said Samsung could (which is incredibly stupid, since a PUK or personal unlock code is 100% handled through the carrier), T-Mobile told me to look on the back of the SIM card holder that it was originally given to me in, which after inputting, did nothing. Called up AT&T yet again, this time threatened to leave a BBB complaint and an FCC claim since I am within my legal rights to an unlocked phone, and nothing. Figured that I may as well just report the internal SIM card reader as broken (since it may as well be) and get a full return due to a manufacturing defect.

I looked into it more on my own, and what it looks like is that the initial batch of network unlock codes were either incorrect on Samsung's end or were incorrectly tied to their respective IMEI numbers, so either way I'm screwed.

There is absolutely nothing AT&T customer support can will do, and if you're out of options for getting a new handset, then maybe filing an FCC complaint / BBB claim will help, but I'm not certain about that. One thing's for certain: this entire situation has left a very sour taste in my mouth from AT&T corporate (and a handful of reps, but I don't want to let one bad apple soil the bunch) and their very heinous business practices.

Solution: returned the device as defective, because AT&T inadvertently / purposefully structured their support system to solve this specific problem by just ignoring it until they get enough small claims court filings to make it a problem.

I've had the same problem and have had the run around from both AT&T, and Samsung.   Neither can help me with this.  The unlock code they gave me will not work.  And I know if you enter it more than 5 times it will lock your phone to the network.  I've only done it twice.

Mine was a pre-order.