unlocking N960U failed.!

i am trying to unlock note 9 .N960u
i flashed combination rom to unlock it but it still doesnt work.


can you help me please


Platform: Samsung Android
Selected port: COM6
Selected model: SM-N960U
Operation: Unlock
Searching for a phone. Please wait...
Please, press "OK" button on the phone to allow USB debugging.
Detected phone model: SM-N960U
Firmware compiled date: Mon Jul 8 10:06:43 KST 2019
PDA version: FA81_N960USQU2ASG1
CSC version: unknown
SW version: N960USQU2ASG1
Phone SN: RF8K81ZL33N
Android version: 8.1.0 (M1AJQ)
Sales code: unknown
Country: unknown
HW platform: sdm845
HW Chip: SDM845
HW Modem: SDM845
Security patch level: 2018-06-01
Warranty Void: 0
SIM 1 status: absent
Codename: crownqltesq
Connecting to modem port...
Found phone on COM18
Reading IMEI...OK
-----------------------------------------------------------------------------------
Connecting to server...OK
Checking smart card...OK
Username: ahmedhosen
Authorizing...OK
Checking balance...OK
Checking operation...OK
Your balance: 400 credits.
-----------------------------------------------------------------------------------
Sending device information...OK
Rebooting phone
Searching for a phone. Please wait...OK
Rebooting phone in Upload Mode...
Searching for a phone. Please wait...OK
Reading data...OK
error 0x0002
Please write modem from proper Combination firmware and repeat
Unlock operation again!
Phone unlocking failed
Performed by 2.8.2 Software version

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