[Xiaomi Mi MIX  Questions & Answers] Sysion:
C:\Program Files (x86)\Minimal ADB and Fastboot>adb reboot edl

C:\Program Files (x86)\Minimal ADB and Fastboot>adb reboot bootloader

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot -w

wiping userdata...

Creating filesystem with parameters:

Size: 122758868992

Block size: 4096

Blocks per group: 32768

Inodes per group: 8192

Inode size: 256

Journal blocks: 32768

Label:

Blocks: 29970427

Block groups: 915

Reserved block group size: 1024

Created filesystem with 11/7495680 inodes and 518576/29970427 blocks

target reported max download size of 536870912 bytes

wiping cache...

Creating filesystem with parameters:

Size: 268435456

Block size: 4096

Blocks per group: 32768

Inodes per group: 8192

Inode size: 256

Journal blocks: 1024

Label:

Blocks: 65536

Block groups: 2

Reserved block group size: 15

Created filesystem with 11/16384 inodes and 2089/65536 blocks

erasing 'userdata'...

OKAY [ 0.005s]

sending 'userdata' (145110 KB)...

OKAY [ 4.174s]

writing 'userdata'...

OKAY [ 1.607s]

erasing 'cache'...

OKAY [ 0.017s]

sending 'cache' (6248 KB)...

OKAY [ 0.209s]

writing 'cache'...

OKAY [ 0.073s]

finished. total time: 6.091s

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot update "C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn_dcb9895fd6.tar"

error: failed to open zip file 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn_dcb9895fd6.tar': Invalid file

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot update "C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn_dcb9895fd6.img

error: failed to open zip file 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn_dcb9895fd6.img': Invalid file

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot update "C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn"

W/ ( 5580): Unable to open 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn': Permission denied

error: failed to open zip file 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn': I/O Error

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot update "C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn\images\boot.img"

error: failed to open zip file 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn\images\boot.img': Invalid file

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot update "C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn.zip"

W/ ( 1184): Unable to open 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn.zip': Permission denied

error: failed to open zip file 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn.zip': I/O Error

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot update "C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn"

W/ ( 9664): Unable to open 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn': Permission denied

error: failed to open zip file 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn': I/O Error

C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot update "C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn"

W/ ( 8648): Unable to open 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn': Permission denied

error: failed to open zip file 'C:\Users\Administrator\Desktop\globalrom\lithium_images_6.11.10_20161110.0000.00_6.0_cn': I/O Error

C:\Program Files (x86)\Minimal ADB and Fastboot>

I fastboot -w then proceeded to run a fastboot update and as shown receive a failed to open zip file.

I only tried "fastboot update" after having no success with the mi flash tool ( after selecting directory of .tgz file and hitting refresh the program fails to respond). I only then downloaded the MiPCSuite after the phone got bricked and now it won't connect to computer. Any ideas? Please help.