1- open the phone
2- On Mother Board Remove The Cover Of “eMMC”
3- Short test point with ground without the battery and Connect USB Cable Test points may be different in different boards so please search test point for you model or post in comments i will try to find for you.
After This Your Phone Shows “Unknown Device” In Device Manager So Install Qualcomn Driver.
And Connect With PC With Out Battary
Now Fixing “Qualcomm HS-USB QDLoader 9008”
How To Unbrick LG G3 Hard bricked Phone?
1-Install Qualcomn Drivers.
2-Extract Rar Of BoardDiag v2.99a And Run It.
3-Extract Zip Of ToT firmware file for your phone.
4-Make sure you have extracted Correct ToT File.
5-Put ToT file in BIN.
6-Set Directory (where ToT File Will Extract) DIR.
7-Click On Extract Button.
How to Extract LG Firmware Full Detail And Video Guide.
After Extraction TUT File You Will See Files Like This
1)Choose “Chipset” For G3 Choose B2
2)Select Correct COM Port Which Shows in Device Manager i.e, (COM8)
3)Select Source Of file Where ToT file Extracted
4)Tick Into “AP Test” And “EMMC TEST”
5)Click On Start
After Both Test Passed
Choose Restore Option And
Restore These Files One by One In this sequence
Note: Don’t Change the Sequence
1)Boot
2)Aboot
3)BackupGpt
4)Boot
5)dbi
6)laf
7)PrimaryGpt
8)Recovery
9)rpm
10)tz
11)sbl1
Finished
After Complete Disconnect Phone And Insert Battery
If Your Phone Boot Up You Have Success
Then Boot Into Download Mode And Flash ToT File With LG Flash Tool
QDLoader_HS-USB_Driver_32bit_Setup.zip Download
QDLoader_HS-USB_Driver_64bit_Setup.zip Download
BoardDiag_v2.99a Download
BoardDiag_v2.99a.zip Official Download
LG G3 Official TOT Firmware Download
Make sure you have Visual C++ Redistributable Installed Download