n7000 isp flasing help plz

how to flashing n7000 isp flashing

i have download this isp file from gpg emmc support site

1) N7000_full_flash rar in this there is only single file user

2) N7000-boot rar in this there is 3 file .N7000.boot1.N7000.boot2.N7000.ext_csd

if i have selected all file

user

boot 1

boot2

ext_csd

not getting success

and getting success if i m selecting single file one by one flashing success

plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz i m new user of gpg emmc box

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