N900L 5.0 how to write qcn


*#0808# not work

Enable Diag ok but not write qcn

Platform: Samsung Android

Selected port: COM1
Selected model: SM-N900L
Detected phone model: SM-N900L
Firmware compiled date: Thu Nov 19 20:08:33 KST 2015
PDA version: N900LKLU0GOK3
CSC version: N900LLGT0GOK3
SW version: N900LKLU0GOJ4
Phone SN: RV1D956TFKR
Android version: 5.0 (LRX21V)
Updating DIAG confing…
DIAG confing is succesfully enabled.

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Platform: Samsung Android
Selected port: COM1
Selected model: SM-N900L
Reading info…
Phone was not found on the selected port!
Writing QCN failed