N910P 5.1.1 Writing CERT… error (0)

Operation: Write CERT
Selected model: SM-N910P
Selected port: COM5 SAMSUNG Mobile USB Serial Port
Software version: 24.2

Checking certificate file… OK
KEY ID: 0772
Waiting ADB device… OK
Reading phone info…
Model: SM-N910P
Android version: 5.1.1
Product code: Not Active
Phone version: N910PVPU4COG5
PDA version: N910PVPU4COG5
CSC version: N910PSPT4COG5
CSC country code: USA
CSC sales code: SPR
HW version: N910P.05
Phone S/N: 00000000000
Modem board: MDM9625M
RF cal date: 2015.05.21
Initialization AT RIL… OK
Bypass SPC… OK
Checking for compatible phone and cert… OK
Phone KEY ID: 0772
Writing CERT… error (0)
Done with Samsung Tool PRO v.24.2