UNLOCK PROCESS IN 24H To unlock remove the EFI/firmware password & iCloud on newer Macs, you must now follow these steps, If they don't work, start over from the beginning and make sure you follow each one exactly. If that still doesn't work, contact us via Chat.: - Boot with Option key held to display the boot menu's firmware password prompt. - Press Control-Option-Command-Shift-S to reveal a 33-digit hash (mixed letters and numbers) that contains an identifier for your specific motherboard and the Atmel chip used for your system. In this hash, the first 17 digits are an identifier for the system's motherboard, and the last 16 digits are a hash for the password. -Submit HASH and SN to order page. Note; Strictly check HASH and SN twice, because we can not refund wrong submited orders. After you receive file you must follow next steps: Format a flash drive GUID partition scheme and Mac OS Extended format. Name it Firmware Download SCBO file to your Desktop. Open Terminal. Paste the following command into the terminal window and press enter: cp ~/Desktop/SCBO-signed.bin /Volumes/Firmware/.SCBO You should get a new line, no errors. cp ~/Desktop/SCBO-signed.bin /Volumes/Firmware/._SCBO You should get a new line, no errors. The EFI password is now removed. After EFI is removed, power off, and RESET NVRAM by keep pressed ( command+option+P+R) and power on, keep restart 2 times, then erase ssd partition and re-create it, use your own bootable OS X and install it. First installation don't do over WiFi, no refund in case re-lock (re-lock could happen in some cases). Eject the flash drive. Turn off the computer. Insert the flash drive. Turn on the computer and immediately hold down the Option key. You should see the lock symbol for a second and then it will restart to the Startup Manager. If you see a PIN lock after these steps, reset the NVRAM with Command-Option-P-R. again
MacBook Pro, Air, iMac 2018 / 2019 unlock iCloud By "Serial Number+Hash Code"