LG M160 (K4 screen lock reset problem)

Hello.

here is log:

Mode: Emergency
Model: M160
Read info...
Laf Protocol: 01000004
Model name: LG-M160
Software verion: M16010u
Android verion: 6.0.1
Target operator: GLOBAL
Target country: COM
Chipset: msm8909
IMEI: 355390091764767
Elapsed: 5 secs. --> (v9.48)

Phone mode is DOWNLOAD
Start reset screen locks...
Laf Protocol: 01000004
Model name: LG-M160
Software verion: M16010u
Android verion: 6.0.1
Target operator: GLOBAL
Target country: COM
Chipset: msm8909
IMEI: 355390091764767
Init EXT4 ...
Truncate file 0... done
Truncate file 1... not found
Truncate file 2... not found
Truncate file 3... done
Truncate file 4... done
Truncate file 5... done
Save EXT4...
Laf cmd error: LAF_CMD_WRITE fail[LAF_ERROR_UNKNOWN[80000121]].
Error reset locks
Elapsed: 158 secs. --> (v9.48)

Case is extremly important (police case)... revive phone from download mode to normal state afTER despetry trying frp unlock , at least i sill have all data, and possibility to ulock this screen lock. MAYBE i SHALL TRY Some other tool, if Z3X cant unlock it