i9515 write cert problem

only like this nothing happend

Code:

Platform: Samsung Android
Selected port: COM181
Selected model: GT-I9515
Selected file: C:\Users\HP\Desktop\usb_driver_MT65xx_Android_\Cert-GT-I9515-35216806251905.cert
ADB server killed.
Detected phone model: GT-I9515
Firmware compiled date: Mon Dec 15 19:36:34 KST 2014
PDA version: I9515XXU1ANL1
CSC version: I9515OJV1AOB2
SW version: I9515XXU1ANL1
Phone IMEI: 355847065474368
Phone SN: R58G20EFC7B
Android version: 4.4.2 (KOT49H)
Checking Root:
Phone is Rooted.
Checking Certificate file..