Dial in the following codes on your phone (without pressing call). If the code works a hidden menu will appear. Find the option 'Port Check Test', and set it to 'Enabled'. It is usually in the top menu or in the 'SVC Menu' submenu.
277634#*#
3845#*160#
*#546368#*160#
LG 2-3G Tool v9.48
supported models: 1555
Mode: Normal
Model: LGM160AT
Build version: Dec 5 201713:16:26Apr 03 201701:00:00LGM160AT
SW Version: MPSS.JO.2.0.c1.2-00026-8909_GEN_PACK-1
IMEI: 35539009033919-9
BlueTooth Address: 00:00:00:00:00:00
Phone Code:
Elapsed: 1 secs. --> (v9.48)
Mode: Normal
Model: LGM160AT
Build version: Dec 5 201713:16:26Apr 03 201701:00:00LGM160AT
SW Version: MPSS.JO.2.0.c1.2-00026-8909_GEN_PACK-1
IMEI: 35539009033919-9
BlueTooth Address: 00:00:00:00:00:00
Phone Code:
Elapsed: 1 secs. --> (v9.48)
Checking phone at COM85
Detected ID: 0000100C (MSM8909)
SW Version: MPSS.JO.2.0.c1.2-00026-8909_GEN_PACK-1
Reading ESN... OK
Read SPC...
SPC: 000000
Unlock SPC... OK
Backuping RFNV... OK
Backuping Feature Mask... OK
Backuping NV Item... OK
Backuping NV Item SIM1... OK
Backuping NV Item SIM2... OK
Backuping Provisioning Item Files... OK
Phone mode is NORMAL
Switch to DOWNLOAD mode
Phone detected!
Read security zone...
Laf Protocol: 01000004
Model name: LG-M160
Software verion: M16010t
Android verion: 6.0.1
Target operator: GLOBAL
Target country: COM
Chipset: msm8909
IMEI: 355390090339199
Save part1... done
Save part2... done
Save part3... done
Sec zone saved: ..\Backup\M160_355390090339199_28052018_114806.lgs b1
Write security zone...
Erase part1... done
Erase part2... done
Erase part3... done
Reboot...
Phone detected!
Reading QCN file... OK
Checking phone at COM85
Detected ID: 0000100C (MSM8909)
SW Version: MPSS.JO.2.0.c1.2-00026-8909_GEN_PACK-1
Read SPC...
SPC: 000000
Unlock SPC... OK
Checking paths... OK
Restoring EFS Backup... OK
Restoring NV Items... OK
Restoring NV Item SIM1... OK
Restoring NV Item SIM2... OK
Restoring Provisioning Item Files... OK
Unlock done!
Elapsed: 1606 secs. --> (v9.48)
277634#*#
3845#*160#
*#546368#*160#
LG 2-3G Tool v9.48
supported models: 1555
Mode: Normal
Model: LGM160AT
Build version: Dec 5 201713:16:26Apr 03 201701:00:00LGM160AT
SW Version: MPSS.JO.2.0.c1.2-00026-8909_GEN_PACK-1
IMEI: 35539009033919-9
BlueTooth Address: 00:00:00:00:00:00
Phone Code:
Elapsed: 1 secs. --> (v9.48)
Mode: Normal
Model: LGM160AT
Build version: Dec 5 201713:16:26Apr 03 201701:00:00LGM160AT
SW Version: MPSS.JO.2.0.c1.2-00026-8909_GEN_PACK-1
IMEI: 35539009033919-9
BlueTooth Address: 00:00:00:00:00:00
Phone Code:
Elapsed: 1 secs. --> (v9.48)
Checking phone at COM85
Detected ID: 0000100C (MSM8909)
SW Version: MPSS.JO.2.0.c1.2-00026-8909_GEN_PACK-1
Reading ESN... OK
Read SPC...
SPC: 000000
Unlock SPC... OK
Backuping RFNV... OK
Backuping Feature Mask... OK
Backuping NV Item... OK
Backuping NV Item SIM1... OK
Backuping NV Item SIM2... OK
Backuping Provisioning Item Files... OK
Phone mode is NORMAL
Switch to DOWNLOAD mode
Phone detected!
Read security zone...
Laf Protocol: 01000004
Model name: LG-M160
Software verion: M16010t
Android verion: 6.0.1
Target operator: GLOBAL
Target country: COM
Chipset: msm8909
IMEI: 355390090339199
Save part1... done
Save part2... done
Save part3... done
Sec zone saved: ..\Backup\M160_355390090339199_28052018_114806.lgs b1
Write security zone...
Erase part1... done
Erase part2... done
Erase part3... done
Reboot...
Phone detected!
Reading QCN file... OK
Checking phone at COM85
Detected ID: 0000100C (MSM8909)
SW Version: MPSS.JO.2.0.c1.2-00026-8909_GEN_PACK-1
Read SPC...
SPC: 000000
Unlock SPC... OK
Checking paths... OK
Restoring EFS Backup... OK
Restoring NV Items... OK
Restoring NV Item SIM1... OK
Restoring NV Item SIM2... OK
Restoring Provisioning Item Files... OK
Unlock done!
Elapsed: 1606 secs. --> (v9.48)