Ripgsm
Product Supporter
LG G6 H870 LAST FW APRIL/2017 "IMEI REPAIR" SUCCESS by OCTOPUS 
FIRST ENABLE COM PORT:
LOG
FIRST ENABLE COM PORT:
Type 277634#*# or *#546368#*870# or 3845*#870#, go to "Port Check Test" (or "SVC Menu -> Port Check Test") and switch "Port Check Test" to "Enabled".

LOG
Platform: LG Qualcomm
Selected port: COM8
Selected model: H870
Reading info...
Model ID: LG-H870
IMEI: 356144-08-XXXXXX-1
Android version: 7.0
Battery level: 8%
SW Version: H87010f
Mode: Normal
Firmware compiled date: Feb 23 2017
Firmware compiled time: 21:00:00
Firmware released date: Apr 17 2017
Firmware released time: 18:12:14
SW Version: MPSS.TH.2.0.1.c3.1-00014-M8996FAAAANAZM-1.86009.21
IMEI: 356144-08-XXXXXX-1
Bluetooth address: A8:B8:6E:C6:E8:BF
Wi-Fi MAC address: DC:0B:34:CA:0FA
SPC: 000000
Performed by 2.8.8 Software version.
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM8
Selected model: H870
Reading info...
Model ID: LG-H870
IMEI: 356144-08-XXXXXX-1
Android version: 7.0
Battery level: 8%
SW Version: H87010f
Mode: Normal
Firmware compiled date: Feb 23 2017
Firmware compiled time: 21:00:00
Firmware released date: Apr 17 2017
Firmware released time: 18:12:14
SW Version: MPSS.TH.2.0.1.c3.1-00014-M8996FAAAANAZM-1.86009.21
IMEI: 356144-08-XXXXXX-1
Bluetooth address: A8:B8:6E:C6:E8:BF
Wi-Fi MAC address: DC:0B:34:CA:0FA
SPC: 000000
Fixing IMEI...
New IMEI: 356144-08-XXXXXX-4
Write security backup function doesn't work for this device with latest
firmware versions. If you'll encounter any problem during Repair IMEI
operation - you won't be able to restore the phone to it's initial state, so
proceed at your own risk.
Continue?
Skip Read/Write QCN
Switching to Download mode...OK
Initializing flash...OK
Reading partitions...OK
Reading security area...OK
Backup saved to "H870_35614408XXXXXX1_07-08-2018_17-16-37.SEC"
Writing security area...OK
Switching to Normal mode...
Found model LGH870AT* ÿh at port COM8
IMEI successfully fixed!
Rebooting phone...
Performed by 2.8.8 Software version.
--------------------------------------------------------------------------------
Platform: LG Qualcomm
Selected port: COM8
Selected model: H870
Reading info...
Model ID: LG-H870
IMEI: 356144-08-XXXXXX-4
Android version: 7.0
Battery level: 7%
SW Version: H87010f
Mode: Normal
Firmware compiled date: Feb 23 2017
Firmware compiled time: 21:00:00
Firmware released date: Apr 17 2017
Firmware released time: 18:12:14
SW Version: MPSS.TH.2.0.1.c3.1-00014-M8996FAAAANAZM-1.86009.21
IMEI: 356144-08-XXXXXX-4
Bluetooth address: A8:B8:6E:C6:E8:BF
Wi-Fi MAC address: DC:0B:34:CA:0FA
SPC: 000000
Performed by 2.8.8 Software version.