In general, it is a common practice among computer repair companies to purchase defective machines, repair them and resell them. However, in the case of Macs, this has become increasingly difficult thanks to the T2 security chip Apple, as reported in a report by VICE.
I explain: basically all Apple gadgets allow the user to reset them in order to return to the factory settings. In the United States, technical assistance is required by law to remove all existing data, but in many cases these machines are password-protected, preventing any type of reset.
There is a small detail in the defective devices and equipped with the T2 chip, however: any repair or exchange of parts requires a diagnosis to be performed to assess whether the machine is working correctly, releasing it again for use.
this is exactly what has given problems to third-party repair specialists who buy used Macs and restore them for resale, since before any repair I need to reset the machine; without the Mac unlock password (as well as Apple's diagnostic tool), this becomes impossible.
Many must be questioning: "Why, just ask the old owner for the password." This could work if assistance often fails to purchase multiple machines from large companies that are not always redefined properly.
Result: in some cases, cutting-edge (and functional) MacBooks are literally discarded as there is nothing to be done, since the machine becomes inaccessible.
According to the VICE, about 20% to 30% of Macs equipped with the T2 chip are not reset when sent for repair and the trend is that this number will increase, since all the latest MacBook models (Air and Pro) come with the chip security.
These problems raise, once again, the discussion about the ?Right to Repair? ("Right to Repair"), a very strong movement in the USA whose objective is to make flexible the repair tools for mobile devices and computers in general for outsourced companies.
In the case of Apple, this made the company make its tools available for even more authorized technical assistance, which consequently gives the consumer more options of places to carry out a repair but, as we can see, there is still a lot of room for improvement.
To reset your Mac to factory settings (if you want to sell it or leave it in a service), follow this tutorial.
via iDrop News