cant reset frp lock a510f

Device: SM-A510F
Operation: FRP Reset Package
Processing Reset Package… Done
Port: COM41 : SAMSUNG Mobile USB Modem #12
Checking for Device… Found [Normal Mode]
Reading Phone Information… OK
Model:
IMEI: R
Init Download Mode… OK
Port: COM44 : SAMSUNG Mobile USB Modem #13
Reading Data from Phone… Done
Chipset: LSI7580 [HiSpeed]
Applying Reset Package… Done
Closing Session… Done
Operation Finished.
Elapsed Time: 00:49

Device: GT-I8190
Operation: Reset FRP / RL / EE
Port: COM44 : SAMSUNG Mobile USB Modem #13
Checking for Device… Found [Download Mode]
Reading Data from Phone… Done
Chipset: LSI7580 [HiSpeed]
Resetting FRP Lock Data… Rejected!
Use FRP Reset Package and then Reset FRP.
Elapsed Time: 00:13

help me sir
thanx in advance