This service only for EFI (FMI ON)
to check if urs FMI ON, do check here :  
 
https://www.biosunlocker.com/product-page/check-for-activation-lock-on-mac-imac
 
 
Download my toll for EFI Unlock from:

https://mega.nz/folder/H4UFEZTZ#NyPo4YM2HqODdAzNqSLLxw
 
install app, copy paste the ECID given to live chat, and ask for Activation
 
Supported models:
iMac (2020)
Mac Pro (2019)
Mac mini (2018)
iMac Pro (2017)
MacBook Pro (13 pouces, 2020, doté de quatre ports Thunderbolt 3)
MacBook Pro (13 pouces, 2020, doté de deux ports Thunderbolt 3)
MacBook Pro (13 pouces, 2019, doté de quatre ports Thunderbolt 3)
MacBook Pro (13 pouces, 2019, doté de deux ports Thunderbolt 3)
MacBook Pro (13 pouces, 2018, doté de quatre ports Thunderbolt 3)
MacBook Pro (16 pouces, 2019)
MacBook Pro (15 pouces, 2019)
MacBook Pro (15 pouces, 2018)
MacBook Air (Retina, 13 pouces, 2020)
MacBook Air (Retina, 13 pouces, 2019)
MacBook Air (Retina, 13 pouces, 2018)
 
Here is EFI unlock only, if other, take a look on store, Do check before u order, to be sure if iCloud is ON or OFF, BUY HERE ONLY IF "ON"