crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0
crwdns2918538:0crwdne2918538:0

crwdns2934241:0crwdne2934241:0 bushing

crwdns2934249:0crwdne2934249:0:

It's inside the A4 chip, inside the ARM core.  See step 18 of the teardown you linked to.

crwdns2915684:0crwdne2915684:0:

open