I bought a MacBook 2019 from APLCOMO store and a year later after performing a software update it gave me a “ firmware lock “ the password was never created by myself, but from the original purchaser. Apple cannot help me to unlock my Mac because my Amazon receipt is not proof enough. The store front is suddenly not available and Amazon themselves cannot assist me. So right now I’m stuck with a brick Mac.Never purchase a MacBook from a third party vendor with mount the original purchase order.