Samsung a520f flash failed always plesae help

I TRIED TO FLASH FIRMWARES 3 TIMES ALWAYS ENDING WITH EROR
PLEASE HELP
LOG BELOW


Chimera Mobile Phone Utility version: 19.33.1814 @ 2018-11-22
Printing phone history

SW Change
22-11-2018
13:30:48

Device Info
22-11-2018
13:29:16

SW Change
22-11-2018
13:15:44

SW Change
22-11-2018
09:59:49

Device Info
22-11-2018
09:58:06

Firmware update started
Extracting firmware...
Unzipping firmware: BL_A520FXXU7CRJA_CL13712092_QB20277014_REV00_user_ low_ship.tar.md5.
Unzipping firmware: AP_A520FXXU7CRJA_CL13712092_QB20277014_REV00_user_ low_ship_meta.tar.md5.
Unzipping firmware: CP_A520FXXU7CRIE_CP10854340_CL13712092_QB19962054_ REV00_user_low_ship.tar.md5.
Unzipping firmware: HOME_CSC_VFR_A520FVFR7CRIE_CL14496228_QB20026311_R EV00_user_low_ship.tar.md5.
Unzipping firmware: CSC_VFR_A520FVFR7CRIE_CL14496228_QB20026311_REV00_ user_low_ship.tar.md5.
Processing firmware...
Flashing firmware...
Waiting for download mode.
Connecting.
SBL Info: Model: SM-A520F, Region: EUR, Provider: OPEN, PDA: A520FXXU7CRJA
Valid PIT file can be found in the firmware: A5Y17LTE_EUR_OPEN_HIDDEN250M.pit
Use the Enable PIT Write option if you want to use it.
Reading PIT from phone.
Flashing boot.img
Flashing recovery.img
Flashing system.img
Firmware flash failed.
Finished at local time: [11.22.18 13:39:35]
WorkID: 47992152


ALSO TRIED TO DOWNLOAD NEW FORMWARE ...