REDMI 6A remove account fail by MRT MUI10 Not support
 

This set not have Bootload lock
Unlock it need into fastboot(vol down and power key)
Connect usb to computer,and click unlock account
after connect the mobile please make sure driver has install!!!
this set support unlock account by one click!!!
***************************************

Connecting Mobile Phone...
please connect your phone as fastboot...
Clear Mobile data...
Creating filesystem with parameters:
Size: 10555994112
Block size: 4096
Blocks per group: 32768
Inodes per group: 8160
Inode size: 256
Journal blocks: 32768
Label:
Blocks: 2577147
Block groups: 79
d block group size: 631
Created filesystem with 11/644640 inodes and 78916/2577147 blocks
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
< waiting for device >
target reported max download size of 134217728 bytes
ing 'userdata'...
FAILED (remote: not allowed in locked state)
finished. total time: 0.001s
Clear Mobile account data...
******** Did you mean to fastboot format this partition?
erasing 'persist'...
FAILED (remote: not allowed in locked state)
finished. total time: 0.001s
reboot mobile set...
rebooting...

finished. total time: -0.000s

very frist u need to unlock bootloader bro .

and for unlock account u need auth account id / pass for redmi 6 / 6a and some other new models