H873 unable to read FW
 

I ve one LG H873 for FRP, But before doing anything i wanted to backup its firmware,Just to be safe.
But it always gives error,while reading.
Ive not attempted to remove frp ,thinking it might be risky.
here is the log.

12/31/2017 4:55:40 PM:
12/31/2017 4:55:45 PM: Phone mode is
12/31/2017 4:55:46 PM: DOWNLOAD
12/31/2017 4:55:46 PM: Start making firmware...
12/31/2017 4:55:46 PM: Laf Protocol: 01000005
12/31/2017 4:55:58 PM: Model name: LG-H873
12/31/2017 4:55:58 PM: Software verion: H87310e
12/31/2017 4:55:58 PM: Android verion: 7.0
12/31/2017 4:55:58 PM: Target operator: GLOBAL
12/31/2017 4:55:58 PM: Target country: CA
12/31/2017 4:55:58 PM: IMEI: 35546xxxxxxxxxx
12/31/2017 4:56:13 PM: Reading PrimaryGPT...
12/31/2017 4:56:13 PM: DONE
12/31/2017 4:56:13 PM: Reading laf...
12/31/2017 4:56:46 PM: Laf cmd info: send LAF_CMD_READ, retry #1
12/31/2017 4:56:49 PM: Laf cmd info: send LAF_CMD_READ, retry #2
12/31/2017 4:57:21 PM: Laf cmd info: send LAF_CMD_READ, retry #1
12/31/2017 4:57:24 PM: Laf cmd info: send LAF_CMD_READ, retry #2
12/31/2017 4:57:28 PM: Laf cmd info: send LAF_CMD_READ, retry #3
12/31/2017 4:57:28 PM: Laf cmd error: LAF_CMD_READ could not write.
12/31/2017 4:57:28 PM: Making firmware error.
12/31/2017 4:57:31 PM: Laf cmd info: send LAF_CMD_KILO, retry #1
12/31/2017 4:57:34 PM: Laf cmd info: send LAF_CMD_KILO, retry #2
12/31/2017 4:57:37 PM: Laf cmd info: send LAF_CMD_KILO, retry #3
12/31/2017 4:57:37 PM: Laf cmd error: LAF_CMD_KILO could not write.
12/31/2017 4:57:37 PM: Elapsed: 111 secs. --> (v9.43)
12/31/2017 4:57:37 PM:
12/31/2017 5:02:50 PM: Phone mode is
12/31/2017 5:02:52 PM: ERROR
12/31/2017 5:02:52 PM: Elapsed: 2 secs. --> (v9.43)

Phone connected direct to mother board? Maybe bad connect?

--
:)

Thank you for the guidance,problem solved by trying different cables ,
Now fw read ok,and frp removed successfully.
-----------------------------------------------------------------------

LG 2-3G Tool v9.43

supported models: 1543

Phone mode is DOWNLOAD
Start making firmware...
Laf Protocol: 01000005
Model name: LG-H873
Software verion: H87310e
Android verion: 7.0
Target operator: GLOBAL
Target country: CA
IMEI: 355469081240457
Reading PrimaryGPT... DONE
Reading laf... DONE
Reading lafbak... DONE
Reading factory... DONE
Reading persist... DONE
Reading system... DONE
Reading OP... DONE
Reading PrimaryGPT... DONE
Reading xbl... DONE
Reading xblbak... DONE
Reading PrimaryGPT... DONE
Reading xbl2... DONE
Reading xbl2bak... DONE
Reading PrimaryGPT... DONE
Reading PrimaryGPT... DONE
Reading boot... DONE
Reading recovery... DONE
Reading recoverybak... DONE
Reading tz... DONE
Reading tzbak... DONE
Reading aboot... DONE
Reading abootbak... DONE
Reading raw_resources... DONE
Reading raw_resourcesbak... DONE
Reading rpm... DONE
Reading rpmbak... DONE
Reading hyp... DONE
Reading hypbak... DONE
Reading pmic... DONE
Reading pmicbak... DONE
Reading devcfg... DONE
Reading devcfgbak... DONE
Reading modem... DONE
Reading sec... DONE
Reading keymaster... DONE
Reading keymasterbak... DONE
Reading cmnlib... DONE
Reading cmnlibbak... DONE
Reading cmnlib64... DONE
Reading cmnlib64bak... DONE
Reading apdp... DONE
Reading msadp... DONE
Reading PrimaryGPT... DONE
Reading PrimaryGPT... DONE
Firmware saved to LGH873AT-01-V10e-CAN-XX-JUL-25-2017-ARB00+0.tot
Elapsed: 686 secs. --> (v9.43)

Mode: Emergency
Model: H873
Read info...
Laf Protocol: 01000005
Model name: LG-H873
Software verion: H87310e
Android verion: 7.0
Target operator: GLOBAL
Target country: CA
IMEI: 355
Elapsed: 15 secs. --> (v9.43)

Phone mode is DOWNLOAD
Start reset FRP...
Laf Protocol: 01000005
Model name: LG-H873
Software verion: H87310e
Android verion: 7.0
Target operator: GLOBAL
Target country: CA
IMEI: 355
FRP Reset done!
Elapsed: 14 secs. --> (v9.43)