Stefan Mileschin

A screenshot of the status screen indicating the phone has detected the extended RAM.
A denizen of the venerable XDA forums reports that it is possible to upgrade the RAM of the Nexus 5X from 2GB to 4GB. Having suffered the dreaded bootloop, [Cathair2906] decided to send their phone off to China for repair. The technician advised that since reflow of the CPU was necessary anyway, it makes sense to upgrade the RAM as well. This is due to the RAM actually being fitted directly on top of the CPU, a method amusingly known as Package on Package (SFW).

http://hackaday.com/2017/04/18/upgra...on-a-nexus-5x/