[G3 Q&A, Help & Troubleshooting] stardreamer77:
Hi

i using LG-D855 32GB SEA (with V21A_00 firmware), i using LG PC Suite to update to MM 30A firmware but failed many time always stuck @ 49%, so i go to lg-firmware-rom.com, key in the IMEI code and download the latest D85530a_00_0528.kdz firmware and use LG Flash Tool 2014 to Flash it. still failed and then i unplug the USB cable and remove the battery. ( turn out the firmware i download is corrupted, so i download few more times to make sure the file MD5 is same to make sure no error)

but the problem is now my phone show "Boot verification failed" and then black screen, when i connect to PC , nothing come up @ device manager. so i try use download mode to connect to PC, now device manager show "QHSUSB_BULK" after some google search, i install QDLoader HS-USB Driver, now it show "Qualcomm HS-USB QDLoader 9008 (COM4)"

i find this http://www.androidbrick.com/unbrick-recover-your-dead-lg-g3-g2-all-variants/# , and try the SmartBootDiagv1.3.1.exe, it can detect my phone @ com4, but after select the "ALL EU Global XXX-XXX" the program run some test, then auto Disconect the phone and reconnect. here is the log :

>> ---------------------------- Start Logging ----------------------------

>> USB Status : Qualcomm HS-USB QDLoader 9008 (COM4)

>> Ready to access the target board...

>> BootLoader File : All EU Global_XXXX_XXXX.mbn

>> 1. Model : All EU Global , 2. Suffix : XXXX , 3. Operator : XXXX

>> Bootloader : All EU Global_XXXX_XXXX.mbn

>> AP Chip : MSM8974_G3 , BootLoader : All EU Global_XXXX_XXXX.mbn

>> Trying Connection To Device with sahara protocol for AP Chip.

>> Successfully Connection To Device with sahara protocol for AP Chip.

>> connected with Sahara Protocol successfully.

>> Loading flash to SYS_IMEM.

>> Loading 0 Kbytes to SYS_IMEM.

>> Loading 4 Kbytes to SYS_IMEM.

>> Loading 8 Kbytes to SYS_IMEM.

>> Loading 12 Kbytes to SYS_IMEM.

>> Loading 16 Kbytes to SYS_IMEM.

>> Loading 20 Kbytes to SYS_IMEM.

>> Loading 24 Kbytes to SYS_IMEM.

>> Loading 28 Kbytes to SYS_IMEM.

>> Loading 32 Kbytes to SYS_IMEM.

>> Loading 36 Kbytes to SYS_IMEM.

>> Loading 40 Kbytes to SYS_IMEM.

>> Loading 44 Kbytes to SYS_IMEM.

>> Loading 45 Kbytes to SYS_IMEM.

>> Successfully Loaded to SYS_IMEM.(Total 45 Kbytes)

>> Flash Image was normally loaded to SYS_IMEM.

>> Checking for device status.

>> [Verifying Hello Protocol]

>> Sending Hello request 0 time(s).

>> SendSync EHOST_HELLO_RSP OK.

>> Hello Response OK.

>> Got Hello response for Hello request.

>> [Verifying Security Protocol]

>> Security Response OK.

>> Connected to flash bootloader.

1> ----------------------------------------------------------------------

>> PBL SOFTWARE HISTORY

1> ----------------------------------------------------------------------

>> 1.Smart Boot Diagnosis Tool v1.3.1 <Analysis Tool for Booting failure>

>> 2.PBL_VERSION_NUMBER [fc021834] = 1c6c6162

1> ----------------------------------------------------------------------

1> ----------------------------------------------------------------------

>> SECURE_BOOT_INFORMATION

1> ----------------------------------------------------------------------

>> [QFPROM - AP Anti-rollback Region of OEM Region ]

>> QFPROM_AP_ANTIROLLBACK_1 [0xFC4B80B8] = 0x00000000

>> QFPROM_AP_ANTIROLLBACK_2 [0xFC4B80BC] = 0x00000000

>> QFPROM_AP_ANTIROLLBACK_3 [0xFC4B80C0] = 0x00000000

>> QFPROM_AP_ANTIROLLBACK_4 [0xFC4B80C4] = 0x00000000

1> ----------------------------------------------------------------------

>> QFPROM_DEVICE_SN_1 [0xFC4B81F0] = 0x0D1487D9

>> QFPROM_DEVICE_SN_2 [0xFC4B81F4] = 0x8800000B

1> ----------------------------------------------------------------------

>> QFPROM_MSA_ANTIROLLBACK_1 [0xFC4B80C8] = 0x00000000

>> QFPROM_MSA_ANTIROLLBACK_2 [0xFC4B80CC] = 0x00000000

1> ----------------------------------------------------------------------

>> [QFPROM QFuse INFO]

>> QFPROM_OEM_ID_LSB [0xFC4B80F0] = 0x00310000

>> QFPROM_OEM_ID_MSB [0xFC4B80F4] = 0x00000000

>> QFPROM_SECURE_BOOT_ENABLE_LSB [0xFC4B83F8] = 0x00202020

>> QFPROM_SECURE_BOOT_ENABLE_MSB [0xFC4B83FC] = 0x00000000

>> QFPROM_JTAG_DISABLE_LSB [0xFC4B80E8] = 0x3FC000C0

>> QFPROM_JTAG_DISABLE_MSB [0xFC4B80EC] = 0x040001FE

1> ----------------------------------------------------------------------

>> JTAG_ID [0xFC4BE0E0] = 0x107B40E1

>> OEM_ID [0xFC4BE0E4] = 0x00310000

>> SERIAL_NUM_MSB [0xFC4B81F4] = 0x8800000B

>> SERIAL_NUM_LSB [0xFC4B81F0] = 0x0D1487D9

>> [SECURITY INFO]

>> OEM_CONFIG_ROW0_LSB_ADDR [0xFC4B80E8] = 0x3FC000C0

>> OEM_CONFIG_ROW0_MSB_ADDR [0xFC4B80EC] = 0x040001FE

>> OEM_CONFIG_ROW1_LSB_ADDR [0xFC4B80F0] = 0x00310000

>> OEM_CONFIG_ROW1_MSB_ADDR [0xFC4B80F4] = 0x00000000

>> FEAT_CONFIG_ROW0_LSB_ADDR [0xFC4B80F8] = 0x00B08010

>> FEAT_CONFIG_ROW0_MSB_ADDR [0xFC4B80FC] = 0x00000000

>> FEAT_CONFIG_ROW1_LSB_ADDR [0xFC4B8100] = 0x00000001

>> FEAT_CONFIG_ROW1_MSB_ADDR [0xFC4B8104] = 0x0004785F

1> ----------------------------------------------------------------------

>> Start Address : 0xfc102140

>> End Address : 0xfc102c80

1> ----------------------------------------------------------------------

>> PBL_APPS LOG

1> ----------------------------------------------------------------------

>> PBL_LOG_COUNT=22

>> LOG_CODE :: 0xef010800 [ DECODED : 0x00010800 ]

>> TIMESTAMP :: 0x0002bdf4

>> LOG_CODE :: 0xef0f0203 [ DECODED : 0x000f0203 ]

>> TIMESTAMP :: 0x0002c49e

>> LOG_CODE :: 0xef010802 [ DECODED : 0x00010802 ]

>> TIMESTAMP :: 0x0002f9a5

>> LOG_CODE :: 0xef010804 [ DECODED : 0x00010804 ]

>> TIMESTAMP :: 0x00030fef

>> LOG_CODE :: 0xef010806 [ DECODED : 0x00010806 ]

>> TIMESTAMP :: 0x0003133a

>> LOG_CODE :: 0xef010808 [ DECODED : 0x00010808 ]

>> TIMESTAMP :: 0x000313e0

>> LOG_CODE :: 0xef01080a [ DECODED : 0x0001080a ]

>> TIMESTAMP :: 0x0003147a

>> LOG_CODE :: 0xef01080c [ DECODED : 0x0001080c ]

>> TIMESTAMP :: 0x000314bd

>> LOG_CODE :: 0xef5d0201 [ DECODED : 0x005d0201 ]

>> TIMESTAMP :: 0x000315be

>> LOG_CODE :: 0xef5d0405 [ DECODED : 0x005d0405 ]

>> TIMESTAMP :: 0x00278a44

>> LOG_CODE :: 0xef5d0600 [ DECODED : 0x005d0600 ]

>> TIMESTAMP :: 0x0027c595

>> LOG_CODE :: 0xef5d0700 [ DECODED : 0x005d0700 ]

>> TIMESTAMP :: 0x00280079

>> LOG_CODE :: 0xef0f0400 [ DECODED : 0x000f0400 ]

>> TIMESTAMP :: 0x002800e1

>> LOG_CODE :: 0xef5d0a00 [ DECODED : 0x005d0a00 ]

>> TIMESTAMP :: 0x0028609b

>> LOG_CODE :: 0xef5d1000 [ DECODED : 0x005d1000 ]

>> TIMESTAMP :: 0x002860f8

>> LOG_CODE :: 0xef5d1100 [ DECODED : 0x005d1100 ]

>> TIMESTAMP :: 0x0028e92f

>> LOG_CODE :: 0xef5d1000 [ DECODED : 0x005d1000 ]

>> TIMESTAMP :: 0x0028e962

>> LOG_CODE :: 0xef5d1100 [ DECODED : 0x005d1100 ]

>> TIMESTAMP :: 0x002966f8

>> LOG_CODE :: 0xef5d1600 [ DECODED : 0x005d1600 ]

>> TIMESTAMP :: 0x00296733

>> LOG_CODE :: 0xef0f0600 [ DECODED : 0x000f0600 ]

>> TIMESTAMP :: 0x002a9e8f

>> LOG_CODE :: 0xef0f0500 [ DECODED : 0x000f0500 ]

>> TIMESTAMP :: 0x14e1346b

>> LOG_CODE :: 0xefa00502 [ DECODED : 0x00a00502 ]

>> TIMESTAMP :: 0x14e3f052

1> ----------------------------------------------------------------------

>> < PBL DUMP LOG >

1> ----------------------------------------------------------------------

>> 1> PBL_GENERAL_LOG_FUNC_EXEC

1> PBL_FUSE_LOG_DEFAULT

1> PBL_GENERAL_LOG_DEFAULT

1> PBL_GENERAL_LOG_DEFAULT

1> PBL_GENERAL_LOG_DEFAULT

1> PBL_GENERAL_LOG_DEFAULT

1> PBL_GENERAL_LOG_DEFAULT

1> PBL_GENERAL_LOG_DEFAULT

1> PBL_SDC_LOG_DEFAULT

1> PBL_SDC_LOG_DEFAULT

1> PBL_SDCC_LOG_GOT_RCA_ERR

1> PBL_SDCC_LOG_GOT_CSD_ERR

1> PBL_FUSE_SDCC_MCLK_BOOT_FREQ

1> PBL_SDCC_LOG_DATA_TRANSFER_MODE_ERR

1> PBL_SDCC_LOG_DETECT_GPT_ERR

1> PBL_SDCC_LOG_GPT_VALIDATE_ERR

1> PBL_SDCC_LOG_DETECT_GPT_ERR

1> PBL_SDCC_LOG_GPT_VALIDATE_ERR

1> PBL_SDCC_LOG_GPT_GOT_SBL_ENTRY_ERR

1> PBL_FUSE_USB_ENUM_TIMEOUT

1> PBL_FUSE_AP_SW_REV

1> PBL_AUTHENTICATION_LOG_DEFAULT

>> Logged Time : 2016-08-09 22:43:00...successfully Completed.

>> Saved Log File(LOG_All EU Global_XXXX_XXXX_20160809_224300.txt) successfully.

-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

So i found this Thread http://xdaforums.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359

but i can't find the TOT file (V21A_00) cause i always download the KDZ file.

so what can i do now? please help .

thanks.