baseband. MF9

first downgrade baseband mf9 to mdc
here link
https://hotfile.com/dl/250307002/e42...m.tar.zip.html

Open the phone app and enter dialer code ##3424# then select Qualcomm USB Setting and select the last option, DM + MDM + ADB and hit OK.
BE SURE TO SET BACK TO MTP+ADB WHEN THIS IS ALL DONE

after unlock





Selected model: L720
Selected port: COM32 SAMSUNG Mobile USB Serial Port
Selected port speed: 115200
Reading phone info...
Build: M9615A-CEFWTAZM-4.0.17062
Done with Samsung Tool v.16.0

Selected model: L720
Selected port: COM32 SAMSUNG Mobile USB Serial Port
Selected port speed: 115200
Bypass MSL... OK
Reading phone info...
Build: M9615A-CEFWTAZM-4.0.17062
Unlocking... OK
Reseting... OK
Unlock done
Done with Samsung Tool v.16.0
Done with Samsung Tool v.16.0

thanks for z3x team

@