Modularity question regarding the L5

So I saw this tweet from Purism:

And that got me to wondering, about how Purism could take this even one step further. With the size of the Librem 5 being somewhat spacious, is it conceivable that the Librem 5 v2 could just be a drop in replacement? If so then this tweet is missing the point by a great deal. Because not even Fairphone can really do that.

Librem 5 v2 will unlikely be a simple upgrade. See the FAQ:

1 Like

Hmmm, based on the info in the Gitlab, I have even more reason to believe this is possible. For one thing, the die on the 14mn chip is shrunk compared to the current chip. Netting more room on the PCB.

I would be VERY surprised if Purism did not endeavor to reuse as much as they could in the Fir model.

I had the same thought - if Purism begins selling replacement PCBs for the L5, maybe the Fir/L5 v2 upgrade process could indeed just be buying a new PCB and slotting it in as long as the PCB fits the same dimensions and has all the components routed similarly enough.

Though I suppose there’s a strong chance that the new CPU might involve redoing the schematics to a degree that it wouldn’t be a drop-in replacement, but one can dream!

Great video and great features. What I miss is the possibility to change the display, which i very easy on the Fairphone. As the display is the part of the smartphone which breaks most, i think that is important.

The SHIFT5.1, SHIFT5.2 and SHIFT5.3 were backward compatible phones, so you could upgrade the PCB of the SHIFT5.1 with the PCB of the SHIFT5.3.

As someone who ordered the Librem 5 v1, I’m hoping that the PCB in the Librem 5 v2 will backward compatible. However, I think it likely that Purism will try to make the Librem 5 v.2 thinner and lighter, which makes it unlikely that its PCB will be backward compatible. Purism mentioned in one of its posts about Birch that later batches of the phone would likely be thinner, but that didn’t happen, so I assume that Purism will do that in the Librem 5 v2.

Of course, my real hope is that Purism will make its next phone based on the RK3588, which makes backward compatibility even less likely. The PinePhone 2 based on the RK3566 is going to have much better specs than the Librem 5 v2 based on the i.MX 8M Plus.


If this happens, I’ll crowdfund it without hesitation.

Not that I’m complaining about the weight and thickness of v.1, but an easier-to-pocket-and-carry L5 would be sweet!

1 Like

Personally I think the thinner thing is overrated. If you look at the industry the drive to make things skinnier has just been the excuse to seal batteries and solder components.

The size of the L5 is fine. It really is, especially if it permits the guts to get a little more stuffed as well.

1 Like

I guess it’s more the weight that I would like to see reduced someday, rather than the thinness. But a reduction in weight would probably also mean a reduction in thickness, given the usual characteristics of batteries and modems, etc.