[Tinkerphones] GTA04A5: good news and bad news

Paul Boddie paul at boddie.org.uk
Wed Feb 22 17:08:52 CET 2017

On Wednesday 22. February 2017 15.49.53 H. Nikolaus Schaller wrote:
> Sadly, this also makes it really the last GTA04 batch which will
> ever be built (making these GTA04A5 boards rare collectibles).
> Unless someone spends us enough money to make more experiments
> with OMAP3 PoP soldering.

Sorry to hear this particularly bad news! I wonder if anyone lurking around 
the Pyra community might be able to bring some expertise to the matter. I 
noticed that certain technical issues, albeit in a different area, were 
greatly assisted by people with access to tools and knowledge through their 
workplaces or professional situations. Maybe some of those people, or others, 
might have something to share about this.

> This situation makes me assume a very high risk for the Neo900
> project, since it uses exactly the same CPU and RAM/NAND PoP
> chip as we have on the GTA04A5. And it was planned to use the
> same production company and line. This means if we can't
> get it soldered for the GTA04A5 by a company with >10
> years experience and >150 projects per year, it is unlikely
> that they will try again and be more successful for the
> Neo900. They already nick-name this chip combination
> "unsolderable chips". And it is also unlikely to find someone
> else who can do it better without making ex(p+t)ensive experiments.
> So the best for Neo900 would be to change the CPU/RAM chip.
> But AFAIK, one of the key ideas is to use Maemo/Fremantle
> which is closely tied to the OMAP3 architecture.

Yes, this doesn't make me very comfortable about Neo900. Then again, maybe 
someone involved there can figure this out and bring their experiences back to 
this project.

Personally, I think some flexibility about the SoC would be acceptable for 
Neo900, but I'm not invested in Maemo at all and have backed that project 
because of the form factor, open hardware aspects, and Free Software support.


> 4. We hope that someone can help to fill the financial
> gap. Well, this does not necessarily mean a donation
> but if you know a project that is in need and can pay
> an engineering team like we have, please contact me.

On the topic of lucrative products, I guess you'll be selling the Letux 15 
board that the Pyra uses as its CPU board, will you not?


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