Problems with uart port gcpro

Im trying to repair drk on sm-j727a bit 3 the phone stuckk on recovery so i cant found combination for binary 3 so fkkas combination of j727t its works fine and boot... but i put *#0808# and mtp+adb and *#7284# make sure uart>pda and put on testmode *#0*# but says no reply what im doing wrong here? its a problem of drivers?:(:confused::confused:
Using Version...1.0.0.0058
Selected Port USB Serial Port COM13
Selected Model GT-I5500
Selected Task SAMSUNG DRK FIX

Started Samsung DRK Fix...

No reply on samsung mode.. DIAL *#0*# AND TRY AGAIN...

!!! Fail !!!!
Total Time Take...00:01:13
Log Saved