How to obtain the unlock code for a MacOS laptop that was erased from iCloud while updating its operating system from version Yosemite 10.10 to Catalina 10.15?
I tried to update a MacOS laptop from Yosemite 10.10 version to Catalina 10.15 version. I used the installers from this page, which opened the AppStore. The installer ran and suddenly the computer reset, it asked me for the unlock code created when the device was erased from Find My Device on iCloud. So I verified by logging into the iCloud account registered on the laptop. The device appears as erased. I would like to know how I can access the unlock code it asks for. The problem is that this computer belongs to a family member and he doesn't remember which code he configured, and I am new to using MacOS and have not found a way to obtain this code or reset the computer.
The computer specifications are as follows (before the update):
Version: OS X Yosemite 10.10.5
Model: MacBook Air (13-inch, Early 2014)
Processor: 1,4 GHz Intel Core i5
Memory: 4GB 1600 MHZ DDR3
Graphics: Intel HD Graphics 5000 1536 MB
This is the code screen that I'm being requested and this's how the device appears in iCloud.
MacBook Air 13″, OS X 10.10
