G955f msl

Unlock4samsung Friday, March 16, 2018

Hello i am trying unlock this phone but software asking for MSL. Is my first unlock for this model and first unlock using credits. What is this MSL?

Operation: Unlock
Selected model: SM-G955F
Software version: 31.0

Searching Samsung modem... detected COM14
Reading phone info... OK
Model: SM-G955F
AP version: G955FXXU1AQK7
CSC version: G955FOTF1AQK7
CP version: G955FXXU1AQK7
Product code: O2U
Phone SN: RF8JA1XXXXX
Unique number: 988A16385055375651
Reading IMEI... OK
IMEI: 357821086XXXXXX
Reading SN... OK
Phone SN: RF8JAXXXXX
Enter MSL: canceled
Operation aborted

Done with Samsung Tool PRO v.31.0