Follow these steps https://community.sprint.com/t5/Phone-Device-Support-Library/SOLUTION-Sprint-Hints-for-Successful-Un... If that dont work send us your IMEI Number.
You will need a Sprint SIM to receive the unlock code.
I do not have Spint Sim,
After one week of waiting my phone still unusable. Ticket number is SD5943019. I'm tired. And hate sprint.
The ticket was completed. The device actually reflected it was already unlocked before the ticket was submitted, which I know it was unlocked before. When the unlock ticket was submitted again, did you have a Sprint SIM in the phone?
The phone should register the SIM, even when the phone doesn't have service. If that Sprint SIM isn't working, you'll need to get a new one, so we can try the ticket again.
Awesome. I made factory reset from recovery and phone locked third time. Just perfect. I always wanted this.