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Purism Librem 5 Hardware Schematics

puri.sm

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Re: Purism Librem 5 Hardware Schematics

#31

Post by seba_dos1 »

pretendgeneer wrote: post #30

(Not a criticism of purism but of how little is required to say "Open Hardware" in general). I have to say how disappointing it is what counts as open hardware. A simple schematic and some xrays? Why not the Kicad(I'm pretty sure that's what they said they used to make it) files, or maybe an openboardview [1] .brd file that would actually help for device repair and hacking on the phone at a hardware level. As a compa…

>I'm pretty sure that's what they said they used to make it

That was said about the devkit.

Gerber files are supposed to be released in a few years, after recouping development costs.

Re: Purism Librem 5 Hardware Schematics

#32

Post by dfox »

pretendgeneer wrote: post #30

(Not a criticism of purism but of how little is required to say "Open Hardware" in general). I have to say how disappointing it is what counts as open hardware. A simple schematic and some xrays? Why not the Kicad(I'm pretty sure that's what they said they used to make it) files, or maybe an openboardview [1] .brd file that would actually help for device repair and hacking on the phone at a hardware level. As a compa…

I don’t know what EDA software was used to produce the schematics, but it certainly wasn’t KiCad.

Also from the overall style it looks to me like the schematics actually were created by some east asian ODM and not by Puri.sm themselves.

Re: Purism Librem 5 Hardware Schematics

#33

Post by icefog »

cia-killer wrote: post #12

Pretty interesting, I hope they make something similar for the laptops. I use an x200 with Libreboot to avoid the proprietary software in new Intel chips and the bios. It's still fast since I use Arch with dwm, but at some point in the future I would like to switch.

> x200 with Libreboot

How safe are those now that the Intel vulnerabilities are known? I doubt hardware that old is getting microcode updates.

Re: Purism Librem 5 Hardware Schematics

#34

Post by lvs »

Why has it become so acceptable to launch half-baked products that don't actually work? Twenty years ago, you launched a product and it had to work right out of the box. What's gone wrong here?

Re: Purism Librem 5 Hardware Schematics

#35

Post by seba_dos1 »

lvs wrote: post #34

Why has it become so acceptable to launch half-baked products that don't actually work? Twenty years ago, you launched a product and it had to work right out of the box. What's gone wrong here?

It's a crowdfunded project where some of the backers opted in to receive a device from an early batch. What's so unacceptable about that?

Re: Purism Librem 5 Hardware Schematics

#36

Post by ajxs »

cia-killer wrote: post #12

Pretty interesting, I hope they make something similar for the laptops. I use an x200 with Libreboot to avoid the proprietary software in new Intel chips and the bios. It's still fast since I use Arch with dwm, but at some point in the future I would like to switch.

Hi Luke M Smith, how's it going? I love your channel.

Re: Purism Librem 5 Hardware Schematics

#37

Post by zzo38computer »

azdle wrote: post #27
m463 wrote: post #22

Earlier quoted context omitted.

The reviews said the speaker isn't wired up. I wonder if you can call with the headphone jack?

My understanding is that the microphone (& speakers?) isn't wired directly to the modem, but needs the CPU to replay the audio to the modem so that the modem (aka, baseband) doesn't have access to the microphone audio except when it actually needs it. So, I would think that the headphone mic wouldn't work either.

This is good for privacy, but can this way of not wiring the microphone directly would also be helpful to do recordings and to send/receive faxes, or does that not work?

Re: Purism Librem 5 Hardware Schematics

#38

Post by azdle »

zzo38computer wrote: post #37
azdle wrote: post #27

Earlier quoted context omitted.

My understanding is that the microphone (& speakers?) isn't wired directly to the modem, but needs the CPU to replay the audio to the modem so that the modem (aka, baseband) doesn't have access to the microphone audio except when it actually needs it. So, I would think that the headphone mic wouldn't work either.

This is good for privacy, but can this way of not wiring the microphone directly would also be helpful to do recordings and to send/receive faxes, or does that not work?

Normal phones can record phone calls, right? I assume that this wouldn't make anything possible that isn't already possible. But, again, I really don't know what I'm talking about here, this is just my understanding from what I've read.

Re: Purism Librem 5 Hardware Schematics

#39

Post by [deleted] »

azdle wrote: post #38
zzo38computer wrote: post #37

Earlier quoted context omitted.

This is good for privacy, but can this way of not wiring the microphone directly would also be helpful to do recordings and to send/receive faxes, or does that not work?

Normal phones can record phone calls, right? I assume that this wouldn't make anything possible that isn't already possible. But, again, I really don't know what I'm talking about here, this is just my understanding from what I've read.

[deleted]

Re: Purism Librem 5 Hardware Schematics

#40

Post by seba_dos1 »

zzo38computer wrote: post #37
azdle wrote: post #27

Earlier quoted context omitted.

My understanding is that the microphone (& speakers?) isn't wired directly to the modem, but needs the CPU to replay the audio to the modem so that the modem (aka, baseband) doesn't have access to the microphone audio except when it actually needs it. So, I would think that the headphone mic wouldn't work either.

This is good for privacy, but can this way of not wiring the microphone directly would also be helpful to do recordings and to send/receive faxes, or does that not work?

Usually phones have their modems tightly integrated within SoCs, so audio is both directly connected to the modem and accessible to the CPU.
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