New FP2 Motherboard

I agree that we wil need fast LTE but 10 mbts are still enough, I mean you can stream FullHD videos with that bandwith, which is quite nice. Also many users stream when they are home and I have integrated a very powerful WiFi chipset from TI


I forgot to mention, this guy who keeps several web sites btw. is a hardware engineer running his computer hardware development business since the 90s.
I had a few talks to him and think besides being a very experienced developer he is also quite friendly and communicative.

His friendliness in the past sometimes got him into trouble and disappointment when collaborating with other enthusiasts wanting to realize an own (hardware) project.
So he may not be that open anymore if there is someone looking out for an option to get their PCB layout finalized or equipped and soldered for prototyping or mass/batch production.

So if FP is not fully into collaborating with your project maybe he is willing to provide some advise or help.
Usually he keeps to state-of-the-art regulations and development/production standards and afaik also is certified.
Take a look at some of his prods, he’s running a store meanwhile.

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Thanks for this very valuable information. I will contact him later when I have some more documantations about my project

I would guess part of the problem lies in the absence of BIOS on phones. On desktops, the BIOS/UEFI serves as a kind of I/O “unifier” that makes things much easier to initialize (RAM, video, keyboard/mouse, …). I don’t know enough about the electronic boot process on phones, but from my (limited) experience, the ARM runs a vector from its flash which is the “bootloader”, taking over to load appropriate OS images (like Recovery or System) from eMMC, Flash, or whatever device it was designed to use.

Each phone having different components addressed in different ways not “unified” by BIOS (not even talking about the ARM processor itself which doesn’t necessarily use the same instruction sets across different revisions), a bootlader has to be customized for a specific hardware layout (in my understanding), making it really difficult to make it generic for any phone.

I think people like @z3ntu or @chrmhoffmann have a very deep knowledge on that subject and can probably correct my mistakes. :slight_smile:


in my FP2 is now a Samsung 256 Mb microSD card, so the slot in necessary for me (photo, and off-line Wikipédia and others


Many thanks for your share. Maybe it’s also good to be listed here or even better if you like (and have permission?!#) then modify the wiki to add this sd card according to the given structure like precise model, used OS on your phone, reliability (is it always recognized after re boot, no lost or corrupted data once in a while causing a read only state etc. in case it’s not yet listed there.

Generally this again shows it seems mandatory for most FP2 users not accepting a new Fairphone version without a dedicated µsd card slot.


Allready done, no problem at this date, I am using Greenify to avoid Battery drain.


So I happen to know that’s going to be the same costs as this one device.

Which is a 64 bit CPU (compatible with AMD64 aka x86-64). Therefore, it is going to run 64 bit versions of Windows and Linux. Which is a great thing because x86(-32) is insecure and getting dropped more and more. You should call it AMD64 or x86-64 or x64; drop the x86 thingy.

Instead of saying 100 mbts wifi (the correct term is 100 mbit, AFAIK), I’d rather want to know which WLAN standards are going to be supported. Same with LTE.

Feature request: seconding a desire for NFC.

What price range do you have in mind?

I simply cannot imagine that if Microsoft is unable to have Windows ARM ready for current high end ARM devices, that you can have Android running on Intel x86-64 on a mobile device with a 2400 mAh battery.

PS: Jens Schönfeld, known from the C=64 and Amiga hardware mod scene. He’s indeed been engineering hardware for-profit on a small scale ever since. He even drives around in a modded car last time I heard (2001).


The price will be high but it’s not the CPU that the important factor when it comes to the price. The CPU can be had for only 40€. But the stuff that goes around it is way more expensive than many people think.
There was a attempt to make Windows mobile, but it was a total flop and had nothing to do with real Windows.
This board has already NFC designed aswell as QI Chariging (WPC Standards 10W)
The used WIFI Chip is made by TI and supports 2.4ghz and 5ghz bands.
The LTE chipset has different versions for different countries.


Higher than the price of the current motherboard? (340€ incl. frame)


@Leo_TheCrafter, MHL hardware is a must! Future Fairphones must be ready for convergence, that is, ready to be plugged to a monitor and be used as personal computers (see


Probably around this price point



I think the guys at would be keen on giving you feedback, so that both your project and theirs go hand in hand. In fact, I am opening a topic there for them to be aware of your work.

For those unaware, UBports are the developers of Ubuntu Touch after Canonical dropped the project, for it not being profitable (a shame IMHO). The OS has so much potential and convergence capabilities.


I just want to say this is amazing and would really bring the FP2 into full open source fruition. The x86 VS ARM on Android will be interesting. I imagine this would actually make it an excellent platform for UBports, Plasma Mobile, and other Linux based mobile OSes. Sadly a lot of services have moved away from open APIs and have locked everything down with proprietary APIs and DRM. But this is still really amazing and I’m excited to see this get made. I would absolutely pick this up.



Isn’t FP2 already??
They are talking about Nexus 5, but - don’t tell me these top images are not from our FP2…:thinking::grin:


Still one would get a more advanced and state-of-the-art core module.

On our Stuttgart Fairphone community meeting yesterday we discussed the same point.

If the price was equal - how would FP look then?
Also in means of having secured spare parts for ~3 years?

Having a choice how would one decide? - rather buy a core module (phone) with the old chipset or the new one at the same price.

I think the new module should even be slightly higher in price due to the difference in advancement. Not too much, but enough so customers (actual users) have a choice they can take. Just as with other products. Often there are slightly different versions of one manufacturer, many times it’s the price that decides.
Being in need of a spare part out of the warranty period would hurt either way.


Keep in mind that the FP2’s core module comes with warranty in the first place (which is included in the price), while this comes with no warranty whatsoever. Hardware without warranty is not an easy sell, I’d say.

Anyway, Fairphone 2 doesn’t have support for any wired display cables/drivers. That’s why @vomae was talking about MHL. Unfortunately MHL is propriatery iirc so it has license fees. Convergence via wireless connections is not developed so far.


This would be really cool. If they are on the fairphone forum please tell me their usernames so I can invite them to the post now that I have the right to invite people.

Good point you are mentioning here. Warranty is part of most if not all new purchases, but considering the price people are often shocked neglecting this fact.

I am not sure of that at the end. If there would not be the usual new item warranty period given it would not be interesting at all for me (probably not for most others too). Warranty as I know the law is mandatory.

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You should be able to invite people with their email address, regardless of them being a forum member.

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Or - @Leo_TheCrafter - you most likely will find them in this thread; though I have no idea how active they are in this forum:

And you will most likely find them on