LOcked EDL Mode???
No Issue
you can Try this method To connect it in EDL Mode
Open Back Cover
https://ibb.co/dO9ct5
Disconnect Battery
Short These Two Pins Using any mettal wire or Pin
and Connect your phone with normal cable
https://ibb.co/exPAD5
now your phone will be booted in edl mode
you can reset mi account using umt
Use QcFIre By UMT Tool