Sending 'token' (0 KB)

[poxcyy]

First time unlocking bootloader and keeps on Sending 'token' (0 KB)
Phone model: gust, Mediatek

The case is the same as prakash1763
#53

Then I try
echo "unlock device token" | xxd -r -p > token.bin
mi-fastboot stage token.bin && mi-fastboot oem unlock
Still on Sending 'token' (0 KB)