Question [Q] Any way toSim Unlock Note 3 On 4.4.2 NB4??

n900t, already rooted.
I have tried regional unlock. NO Luck here.

I also tried flash back to MI7 modem( modem only). the phone shows unknown baseband and I try regional unlock again. Not luck.
Not I am back on NB4 modem.

Is there any way to sim unlock on android 4.4.2 NB4?

Thank you