[G3 Q&A, Help & Troubleshooting] Bahuser:
Hello everyone.

I have a problem.

To disable korean watch and symbols in dialer, I've changed these lines in build.prop:

ro.product.locale.language=ko

ro.product.locale.region=KR

ro.build.target_country=KR

To the:

ro.product.locale.language=ru

ro.product.locale.region=RU

ro.build.target_country=RU

After that, i rebooted the phone. And it is not booting up. LG Logo appears and after that black screen. No boot-loop, no anything. Just blank screen. And led changing its color from blue to green and back.

I've decided to restore firmware.

Followed up these guides:

http://xdaforums.com/showthread.php?t=2772199

http://xdaforums.com/showthread.php?t=2771401

Downloaded files for my F400L.

Put my phone in download mode.

Run flashtool. Every step is ok.

But at one point it says:

"Download FAIL!!(15 sec)"

"Can't change to download mode"

log file:

[22: 8:24] ЎЪ Tool : 1, 8, 6, 527 : C:\LG\LGFLASHTOOL\LGFLASHTOOL.EXE

[22: 8:24] ЎЪ DLL : 0.3.12.0 : E:\Downloads\LG_G3\F400L.dll

[22: 8:24] Process :

[22: 8:24] BIN : E:\Downloads\LG_G3\LGF400LAT-00-V10a-LGU-KR-MAY-18-2014+0\LGF400LAT-00-V10a-LGU-KR-MAY-18-2014+0.tot

[22: 8:24] SCR :

[22: 8:24] PRL : ;;;;;;;;;;

[22: 8:24] ERI :

[22: 8:24] + 1. Web Download Mode = -1

[22: 8:24] + 4. Web param-Bin Version =

[22: 8:24] Frmae Type : LGFlashTool

[22: 8:24] Load : 79 Total : 4194303KB Avail : 1274952KB

[22: 8:24] AvailPage : 3523388KB AvailVirtual : 1881096KB

[22: 8:24] Total/Free of C:\ : 121751 MB / 23597 MB

[22: 8:24]

ЎЪЎЪЎЪ Factory Information ЎЪЎЪЎЪ

[22: 8:24] 1. Model Name : LG-F400L

[22: 8:24] 2. SWV : LGF400LAT-00-V10g-LGU-KR-JUN-22-2014+0

[22: 8:24] 3. SWOV : LGF400LAT-00-V10g-LGU-KR-JUN-22-2014+0

[22: 8:24] 4. PID : (here is my PID)

[22: 8:24] 5. IMEI : (here is my IMEI)

[22: 8:24]

[22: 8:25] CBasicComControl::IsConnected, the port(COM41) connection is not detected

[22: 8:25] CBasicComControl::eek:pen, the port(COM 41) is constructed successfully => HANDLE : 0xa1c

[22: 8:25] CPort::eek:penPort() Success. Port number is 41

[22: 8:25] ---------------------------------------------------------------------------------

[22: 8:25] SubProcess Name : NoOperationCmd

[22: 8:25] [T000004] 06 4E 95 7E .N..

[22: 8:27] Response packet time out 1500 milisec

[22: 8:27] CBasicCom::SendRecvPacket, PACKET_ERROR code = 1460 Msg => This operation returned because the timeout period expired.

[22: 8:27] Error! CCmdProcess::ExecuteCommand() Ўж SendRecvPacket()

[22: 8:27] ---------------------------------------------------------------------------------

[22: 8:27] SubProcess Name : NoOperationCmd

[22: 8:27] [T000004] 06 4E 95 7E .N..

[22: 8:28] Response packet time out 1500 milisec

[22: 8:28] CBasicCom::SendRecvPacket, PACKET_ERROR code = 1460 Msg => This operation returned because the timeout period expired.

[22: 8:28] Error! CCmdProcess::ExecuteCommand() Ўж SendRecvPacket()

[22: 8:28] ---------------------------------------------------------------------------------

[22: 8:28] SubProcess Name : DiagVerNO

[22: 8:28] [T000004] 00 78 F0 7E .x..

[22: 8:33] Response packet time out 5000 milisec

[22: 8:33] CBasicCom::SendRecvPacket, PACKET_ERROR code = 1460 Msg => This operation returned because the timeout period expired.

[22: 8:33] Error! CCmdProcess::ExecuteCommand() Ўж SendRecvPacket()

[22: 8:33] DloadVerNO is not define! CCmdProcess::GetCommandDataByName

[22: 8:34] Current Process : PROCESS_FAC_UPGRADE

[22: 8:34] Binary Path : E:\Downloads\LG_G3\LGF400LAT-00-V10a-LGU-KR-MAY-18-2014+0\LGF400LAT-00-V10a-LGU-KR-MAY-18-2014+0.tot

[22: 8:34] Try opening E:\Downloads\LG_G3\LGF400LAT-00-V10a-LGU-KR-MAY-18-2014+0\LGF400LAT-00-V10a-LGU-KR-MAY-18-2014+0.tot file

[22: 8:34] Crc32OfTot : 0x12568B19

[22: 8:34] Tot File length verify : PASS 3050831872 / 3050831872

[22: 8:34] #### [EXTENDED SUPER BOOST] ####

[22: 8:34] *****************************************************************************

[22: 8:34] *- LG-F400L PartitionTable Info -*

[22: 8:34] *- SW Version : F400L10a

[22: 8:34] *- SWFV :

[22: 8:34] *- Build Type : user

[22: 8:34] *- Binary Size: 3050831872 Bytes

[22: 8:34] *****************************************************************************

[22: 8:34] Index | Part Name | Start Sector | FileSize | No Of Sectors

[22: 8:34] 0/ 0 | PrimaryGPT | 0x00000000 | 0x0000000000080000 | 0x00008000

[22: 8:34] 0/ 1 | modem | 0x00008000 | 0x0000000003900000 | 0x00020000

[22: 8:34] 0/ 2 | sbl1 | 0x00028000 | 0x0000000000080000 | 0x00000800

[22: 8:34] 0/ 3 | dbi | 0x00028800 | 0x0000000000080000 | 0x00000800

[22: 8:34] 0/ 4 | aboot | 0x00029000 | 0x0000000000180000 | 0x00001000

[22: 8:34] 0/ 5 | rpm | 0x0002A000 | 0x0000000000080000 | 0x00000800

[22: 8:34] 0/ 6 | tz | 0x0002A800 | 0x0000000000080000 | 0x00005800

[22: 8:34] 0/ 7 | boot | 0x00030000 | 0x0000000000B80000 | 0x00008000

[22: 8:34] 0/ 8 | persist | 0x00038000 | 0x0000000000500000 | 0x00010000

[22: 8:34] 0/ 9 | recovery | 0x00048000 | 0x0000000000C00000 | 0x0000D810

[22: 8:34] 0/ 10 | rct | 0x00055810 | 0x0000000000080000 | 0x000027F0

[22: 8:34] 0/ 11 | misc | 0x00058000 | 0x0000000000A00000 | 0x00008000

[22: 8:34] 0/ 12 | laf | 0x00060000 | 0x0000000000F80000 | 0x00040000

[22: 8:34] 0/ 13 | factory | 0x000A0000 | 0x0000000000D00000 | 0x00010000

[22: 8:34] 0/ 14 | system | 0x000B0000 | 0x0000000008080000 | 0x00040508

[22: 8:34] 0/ 15 | system | 0x000F0508 | 0x0000000007F80000 | 0x00040A70

[22: 8:34] 0/ 16 | system | 0x00130F78 | 0x0000000007E80000 | 0x0003F590

[22: 8:34] 0/ 17 | system | 0x00170508 | 0x0000000000080000 | 0x00000F78

[22: 8:34] 0/ 18 | system | 0x00171480 | 0x0000000007D80000 | 0x0003FAF8

[22: 8:34] 0/ 19 | system | 0x001B0F78 | 0x0000000007E80000 | 0x0003F590

[22: 8:34] 0/ 20 | system | 0x001F0508 | 0x0000000000080000 | 0x00000F78

[22: 8:34] 0/ 21 | system | 0x001F1480 | 0x0000000007D80000 | 0x0003FAF8

[22: 8:34] 0/ 22 | system | 0x00230F78 | 0x0000000007E80000 | 0x0003F590

[22: 8:34] 0/ 23 | system | 0x00270508 | 0x0000000000080000 | 0x00000F78

[22: 8:34] 0/ 24 | system | 0x00271480 | 0x0000000007D80000 | 0x0003FAF8

[22: 8:34] 0/ 25 | system | 0x002B0F78 | 0x0000000007E80000 | 0x0003F590

[22: 8:34] 0/ 26 | system | 0x002F0508 | 0x0000000000080000 | 0x00000F78

[22: 8:34] 0/ 27 | system | 0x002F1480 | 0x0000000007D80000 | 0x0003FAF8

[22: 8:34] 0/ 28 | system | 0x00330F78 | 0x0000000007E80000 | 0x00040000

[22: 8:34] 0/ 29 | system | 0x00370F78 | 0x0000000007E80000 | 0x00040000

[22: 8:34] 0/ 30 | system | 0x003B0F78 | 0x0000000007E80000 | 0x00040000

[22: 8:34] 0/ 31 | system | 0x003F0F78 | 0x0000000007E80000 | 0x00040000

[22: 8:34] 0/ 32 | system | 0x00430F78 | 0x0000000005880000 | 0x0003F088

[22: 8:34] 0/ 33 | system | 0x00470000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 34 | system | 0x004B0000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 35 | system | 0x004F0000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 36 | system | 0x00530000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 37 | system | 0x00570000 | 0x0000000000080000 | 0x00010000

[22: 8:34] 0/ 38 | cache | 0x00580000 | 0x0000000000F80000 | 0x00040000

[22: 8:34] 0/ 39 | cache | 0x005C0000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 40 | cache | 0x00600000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 41 | cache | 0x00640000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 42 | cache | 0x00680000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 43 | cache | 0x006C0000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 44 | cache | 0x00700000 | 0x0000000000080000 | 0x00028000

[22: 8:34] 0/ 45 | userdata | 0x00728000 | 0x0000000008080000 | 0x00041648

[22: 8:34] 0/ 46 | userdata | 0x00769648 | 0x0000000000080000 | 0x00001000

[22: 8:34] 0/ 47 | userdata | 0x0076A648 | 0x0000000007B00000 | 0x0003D9B8

[22: 8:34] 0/ 48 | userdata | 0x007A8000 | 0x0000000000080000 | 0x00001000

[22: 8:34] 0/ 49 | userdata | 0x007A9000 | 0x0000000007D00000 | 0x0003F000

[22: 8:34] 0/ 50 | userdata | 0x007E8000 | 0x0000000000080000 | 0x00001648

[22: 8:34] 0/ 51 | userdata | 0x007E9648 | 0x0000000000080000 | 0x00001000

[22: 8:34] 0/ 52 | userdata | 0x007EA648 | 0x0000000007B80000 | 0x0003E9B8

[22: 8:34] 0/ 53 | userdata | 0x00829000 | 0x0000000007D00000 | 0x0003F000

[22: 8:34] 0/ 54 | userdata | 0x00868000 | 0x0000000000080000 | 0x00001648

[22: 8:34] 0/ 55 | userdata | 0x00869648 | 0x0000000000080000 | 0x00001000

[22: 8:34] 0/ 56 | userdata | 0x0086A648 | 0x0000000007A00000 | 0x0003D9B8

[22: 8:34] 0/ 57 | userdata | 0x008A8000 | 0x0000000000080000 | 0x00001000

[22: 8:34] 0/ 58 | userdata | 0x008A9000 | 0x0000000006780000 | 0x0003F000

[22: 8:34] 0/ 59 | userdata | 0x008E8000 | 0x0000000000080000 | 0x00001648

[22: 8:34] 0/ 60 | userdata | 0x008E9648 | 0x0000000000080000 | 0x0003E9B8

[22: 8:34] 0/ 61 | userdata | 0x00928000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 62 | userdata | 0x00968000 | 0x0000000000080000 | 0x00001648

[22: 8:34] 0/ 63 | userdata | 0x00969648 | 0x0000000000080000 | 0x0003E9B8

[22: 8:34] 0/ 64 | userdata | 0x009A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 65 | userdata | 0x009E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 66 | userdata | 0x00A28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 67 | userdata | 0x00A68000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 68 | userdata | 0x00AA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 69 | userdata | 0x00AE8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 70 | userdata | 0x00B28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 71 | userdata | 0x00B68000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 72 | userdata | 0x00BA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 73 | userdata | 0x00BE8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 74 | userdata | 0x00C28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 75 | userdata | 0x00C68000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 76 | userdata | 0x00CA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 77 | userdata | 0x00CE8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 78 | userdata | 0x00D28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 79 | userdata | 0x00D68000 | 0x0000000000080000 | 0x00001648

[22: 8:34] 0/ 80 | userdata | 0x00D69648 | 0x0000000000080000 | 0x0003E9B8

[22: 8:34] 0/ 81 | userdata | 0x00DA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 82 | userdata | 0x00DE8000 | 0x0000000000080000 | 0x00001648

[22: 8:34] 0/ 83 | userdata | 0x00DE9648 | 0x0000000000080000 | 0x0003E9B8

[22: 8:34] 0/ 84 | userdata | 0x00E28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 85 | userdata | 0x00E68000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 86 | userdata | 0x00EA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 87 | userdata | 0x00EE8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 88 | userdata | 0x00F28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 89 | userdata | 0x00F68000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 90 | userdata | 0x00FA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 91 | userdata | 0x00FE8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 92 | userdata | 0x01028000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 93 | userdata | 0x01068000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 94 | userdata | 0x010A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 95 | userdata | 0x010E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 96 | userdata | 0x01128000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 97 | userdata | 0x01168000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 98 | userdata | 0x011A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/ 99 | userdata | 0x011E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/100 | userdata | 0x01228000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/101 | userdata | 0x01268000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/102 | userdata | 0x012A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/103 | userdata | 0x012E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/104 | userdata | 0x01328000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/105 | userdata | 0x01368000 | 0x0000000000080000 | 0x00001648

[22: 8:34] 0/106 | userdata | 0x01369648 | 0x0000000000080000 | 0x0003E9B8

[22: 8:34] 0/107 | userdata | 0x013A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/108 | userdata | 0x013E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/109 | userdata | 0x01428000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/110 | userdata | 0x01468000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/111 | userdata | 0x014A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/112 | userdata | 0x014E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/113 | userdata | 0x01528000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/114 | userdata | 0x01568000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/115 | userdata | 0x015A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/116 | userdata | 0x015E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/117 | userdata | 0x01628000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/118 | userdata | 0x01668000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/119 | userdata | 0x016A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/120 | userdata | 0x016E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/121 | userdata | 0x01728000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/122 | userdata | 0x01768000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/123 | userdata | 0x017A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/124 | userdata | 0x017E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/125 | userdata | 0x01828000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/126 | userdata | 0x01868000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/127 | userdata | 0x018A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/128 | userdata | 0x018E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/129 | userdata | 0x01928000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/130 | userdata | 0x01968000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/131 | userdata | 0x019A8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/132 | userdata | 0x019E8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/133 | userdata | 0x01A28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/134 | userdata | 0x01A68000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/135 | userdata | 0x01AA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/136 | userdata | 0x01AE8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/137 | userdata | 0x01B28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/138 | userdata | 0x01B68000 | 0x0000000000080000 | 0x00001648

[22: 8:34] 0/139 | userdata | 0x01B69648 | 0x0000000000080000 | 0x0003E9B8

[22: 8:34] 0/140 | userdata | 0x01BA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/141 | userdata | 0x01BE8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/142 | userdata | 0x01C28000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/143 | userdata | 0x01C68000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/144 | userdata | 0x01CA8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/145 | userdata | 0x01CE8000 | 0x0000000000080000 | 0x00040000

[22: 8:34] 0/146 | userdata | 0x01D28000 | 0x0000000000080000 | 0x00031C00

[22: 8:34] 0/147 | BackupGPT | 0x01D59C00 | 0x0000000000080000 | 0x00000400

[22: 8:35] InitDiag is success.

[22: 8:35] InitializeProcess() is success.

[22: 8:35] ---------------------------------------------------------------------------------

[22: 8:35] SubProcess Name : DiagDload

[22: 8:35] [T000003] 00 00 7E ...

[22: 8:35] [T000004] 3A A1 6E 7E :.n.

[22: 8:40] Response packet time out 5000 milisec

[22: 8:40] CBasicCom::SendRecvPacket, PACKET_ERROR code = 1460 Msg => This operation returned because the timeout period expired.

[22: 8:40] Error! CCmdProcess::ExecuteCommand() Ўж SendRecvPacket()

[22: 8:40] Can't change to download mode

[22: 8:40] RefurbishProcess() Error.

[22: 8:40] ЎЪЎЪ ERROR REASON : LAF_ERROR_CHANGE_DLOAD_F

[22: 8:40] CComPort::ClosePort, Closed Port Successfully for COM 41

[22: 8:40] CBasicComControl::Close, the port(COM41) is closed successfully

[22: 8:41] RunProcess() is fail.

[22: 8:41] CBasicComControl::IsConnected, the port(COM41) connection is not detected

[22: 8:41] [22: 8:40] Can't change to download mode

[22: 8:41] DoDownload() Exception

Can anyone help with this?