My dad bought a used 21.5 iMac (2017) a few weeks back (previous owner bought it new but decided to sell after a week, so its basically new.) Given that it came with a 1TB fusion drive, we decided to switch it for the Samsung EVO he was using in his previous Macbook (He doesn’t need storage, only speed.)
All went according to plan in terms of opening and swapping the drives, but upon rebooting (attempting to ctrl+r to boot menu) it popped the apple logo and then swapped to a black screen with a lock and password field. After a little reading on the subject it seems someone must have enabled the EFI Firmware password protection which doesn’t allow booting on other drives e.g. external or otherwise.
I’ve contacted the previous owner, but she's drawing a blank, claiming never setting up anything of the sort. I’m unsure if this can be enabled during first boot installation, but she didn’t strike me as the type who would know how to do so afterwards (let alone think about it.) My guess is that the shop might’ve had it returned from a prior owner, not reset it correctly and resold it as new (or perhaps discounted, hard to tell from the receipt.)
Knowing firmware is locked with an unobtainable password ...
- Would I be able to remove the new SSD and insert the original HDD and have the password prompt go away? Or is the system locked until correct password is entered, no matter the drive (it booted prior to switching drives).
- Warranty void on opening and swapping diskdrive? Searching around it seems everyone has a different story. Some say the rest of the system is still under warranty, others do not. This isn’t Apples issue of cause, but I would likely levy it against the reseller.
- Even if the old HDD would work again, I’m assuming that not having the FW password would be a roadblock if reinstalling OSX in the future?