Upgrading RAM on a Nexus 5X



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).

Upgrading RAM in the average computer is a relatively trivial task. Pop the case open, and you slide the new sticks into the extra slots. It’s not the same case for smartphones and tablets — in the endless quest for the slimmest form factor, all parts are permanently soldered. In addition, every device is essentially bespoke hardware; there’s no single overarching hardware standard for RAM in portable devices. You could find yourself searching high and low for the right chips, and if you do track them down, the minimum order quantity may very well be in the thousands.

Unless, of course, you had access to the Shenzhen markets where it’s possible to buy sample quantities of almost anything. Given access to the right parts, and the ability to solder BGA packages, it’s a simple enough job to swap a bigger RAM chip on top of the CPU during the repair.

It’s the sort of thing that’s trivial in Shenzhen, and almost mind-bogglingly impossible in the West. The price of the repair? About $60 USD. [Cathair2906] was even nice enough to share the address of the shop that did the work.

We’ve seen similar antics before – like this Nexus 5 storage upgrade to 64GB.

[via XDA Developers, thanks to Jack for the tip!]



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