So you can use Auto Unlock on old Mac computers

With watchOS 3 and the hand of macOS Sierra, Apple presented a new unlocking system for our Macs. In this way, just by having our Apple Watch on the wrist. However, the usual comes, incompatibilities with older devices. It is something normal, but it does not stop touching the moral of certain users. To be certain, this system will work with any macOS device from 2013, but We are going to tell you a little trick on how to get Auto Unlok on a device that is supposedly not compatible, it is cheap, easy and quite fast.

All this has been carried out by a user of Reddit called "jjborcean", which made a little fix on his MacBook to be able to enjoy Auto Unlock:

Auto Unlock is only compatible between devices with watchOS 3 and with macOS Sierra, that is, on Mac devices that have been released after mid-2013. However, you can also enjoy Auto Unlock.

To do this, you need an AirPort network card that supports WiFi AC.

You just have to turn off your Mac, completely disconnect the battery and cable, and proceed to install the new network card. It is quite simple, it is usually in the upper left corner. Now just relaunch the system and the option will appear.

The reality is that it is quite easy, and you only need to buy the card of this LINK Although it is from Amazon.com you can go to the equivalent version of Spain or the country where you reside. For those who are not fluent with this type of mechanism, the reality is that it is not worth it, the card is usually around € 40, perhaps an excessive price for automatically unlocking the Mac, more knowing that it is not unlocked when it starts after being turned off, but when it is in sleep.