g9280 imei repair is fail

how fix it?


Using Version...1.0.0.0058
Selected Port USB Serial Port COM3
Selected Model GT-I5500
Selected Task SAM CERT WRITE

ALL SAMSUNG CERT WRITE STARTED..

Searching Phone Please wait...

Phone Found Wait...
TEST MODE OK..
Details. SM-G9280,G9280.07,G9280ZCU2AOL5,G9280ZCU2AOL5,G9280ZC U2
Model := SM-G9280
SWVer := G9280ZCU2AOL5
UNIQID := 0815F8090DB1220
Phone IMEI := 99000473577832
Device Knox Warranty is := Not Void
Default MSL NO NEED RESET EFS...
MSL Autho Pass..
Update SerialNumber ok..
Update IMEI Ok..
SKEY := 0472
QCOM(QUALCOMM) detected..
Checking imeisign...
IMEI-1 SIGN FAIL Will retry..
Checking imeisign...
IMEI-1 SIGN FAIL...
CERT task fail still continue...
Cert file used..F:\1PHONEtools\5-----Firmware\CERTfile\g928p\SM-G928P-_990004735778320.cert
Fixing FTM ok..
Repairing finish.

!!! FAIL !!!!
Total Time Take...00:04:07