820 01521 : Unable to erase the MacBook air

After multiple attempts

Every time I click on erase , it is loading back asking for user id password or Iclould. I don't have either.

First Type C port: It takes 20 V in but doesn't boot up

Second Type C port : It works fine
 
It is not getting connected in DFU mode

as I mentioned Port 1, which is close to LCD is taking 20 V but not taking ampere, not booting system
 
First of all , I wanna say Thank you so much, I really appreciate it

and now I wanna say that I Tried from that port ,which is close to trackpad, as well. It is not going into DFU Mode.
 
When I click on it....It restarts and launch the internet recovery mode, and then It circle back to same Recovery Assistant page
 

2informaticos

Administrator
Staff member
Did you exactly follow all steps in DFU tutorial?
Sometime takes time and many tries, to get into DFU mode.

Can you access Disk Utility?
Try to put the machine in Target Disk mode and access its SSD from other Mac.
 
Last edited:
How to do it ? Try to put the machine in Target Disk mode and access its SSD from other Mac.

I got another macbook pro 2018 with the same issue
 

2informaticos

Administrator
Staff member
 
Top