Other example: a very basic TOH case to store paper (e.g. money), credit cards. I personally put post-it notes on my Xperia back all the time, and I have seen people with a credit card in their phone case.
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TOH ATTACHMENT DESIGN
PLEASE MAKE ABSOLUTELY SURE TO DELIVER A HIGHLY RELIABLE, PRECISION INTERLOCKING SOLUTION TO PREVENT REPUTATIONAL DISASTERS.
YOU MIGHT WANNA INVOLVE MECHANICAL ENGINEERS / EXPERTS.
During the lifecycles of JP-1’s TOHs I remember several TOH-shells carrying away micro-cracks from monthly swappings. Clipable shells should be sufficiently fibre-enforced in strained areas or you might wanna consider guided, interlocking rails - working a bit like camera lens mounts - imposing solid mountings and a minimum of degrading stresses imposed on both sides of the interlock.
TEST IT SUFFICIENTLY BEFORE RELEASING ANY TERMINAL DESIGN.
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Right now 62% voted “I’m happy to do even some screws if it makes the experience better”
I think Jolla might have made the same observation as you, and that is the reason why they are checking we’re ok with screws (at least for the more complex or expensive attachments).
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If the chipset supports and it is electronically feasible, I would like to see (powered) internal USB pins or even internal USB-c iconnecting other devices to the device. Most useful thing for usb-host port would be to have existing driver support for different devices to connected and the main usb-port could be used for charging.
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Meshtastic / Meshcore support via LoRa hardware seems to interesting idea.
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I think that if user can change alternative back which would have more internal space (for example 3d printed back) then it would be perfect solution for me. Another usecase what I see is long term usefulness for the device. If there is internal USB-c port or even pogo pins for usb then when device is not useful as phone (because it is too old and baseline is something faster) then it can be used on different hacking and sbc usecases as it is we cool device with display, touchscreen, network, connectivity and sensors.
A phone is a communicator. Europe is mobilising. Standard phone networks and satelites are vulnerable. Unlike IOT Lora for personal use is not really widespread. Where I live in southern UK there is no fixed node for 50 miles either side north/south 80 miles east/west. There was a Lora back ( and other ones) for the Pinephone and Pro. There are other phone/Lora projects but gaining traction is slow. BLE is used by Apple Google Amazon etc to maintain personal data uplift including location even without net connectivity and with the phone turned off. Every phone is a repeater station. That’s what makes AirTags work. An iPhone functions for nine months after the battery is shown to be flat. So called Privacy is a joke.
And might kill your cards in pocket
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Probably you wouldn’t like to loosen screws if you needed to swap / remove a battery OTG - better a mechanical security slider / pusher / latch - from my point of view …
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PCIe / M.2 - SUPPORT - not a bad idea at all 
The designated SoC-family could be supporting this:
The way back then jolla-venture customizing a specific display integration to the x86-tablet-SoC is ringing a bell though : enough devel resources for offering this as a feature to end-users ?
Available PCIe-connectivity sounds like a very consistent and tempting approach though anyway:wink: … keyboards would use I2C / I3C pogos instead of course …
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Would love to have a TOH with:
- If cameras don’t have good lenses, something to improve that converting them in great cameras.
- Good quality DAC with 3.5 minijack I/O (4 pins).
- Physical keyboard.
That would be my main priorities. Obviously e-ink display, GPIO, other connections, Qi2… would be great.
For people wanting more battery, since Jolla said that the mobile will have swappable battery, just provide a thicker one and leave space in the TOH to let it fit and adjust could be cool for them.
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It would be better if the software were more optimized, and I think physical keyboards are quite outdated. If it’s going to look aesthetically pleasing, I think it would be more necessary. I wish there had been a 3D project image of the keyboard, like small screen accessories, during the voting process; it would have been clearer and more logical to choose. The community seems a bit confused. 
… by the end of the day, daily really useful shells such as NFC for wallet payments might just be winning the race above DAC-decks or bloating solutions such as 3.5mm-stereo-sockets …
IMHO 3.5mm-stereo-sockets should be integrated into the main device as far as possible - to avoid additional bulk …
In reality - out of my JP-1 experience - probably flat shells remain … 
Recalling my TOH-keyboard which I sold again, as the desktop BT-KB worked fine and I didn’t feel the necessity to carry around all the bulk and the magnetic attachment, which occasionally couldn’t hold the keyboard properly in place …
2 Likes
Would it maybe be possible to allow App Support exclusive access to the NFC subsystem, similar to how someone has already done it with Bluetooth?
I cannot think of many use cases where I would need native apps and Android apps to access NFC at the same time, so this could be a workaround that does not require expensive additional hardware.
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I do not think an external DAC with a headphone jack is such a bad idea.
Adding a headphone jack to the phone would probably require expensive design changes. Why should the majority of users who do not need such gimmicks subsidize a (admittedly loud) minority that wants to hang on to anachronisms?
Edit: I’m sorry, that may have sounded a bit harsh.
I do not have anything against 3.5 mm jacks per se, if they do not drive up the cost. It is just that this has been discussed to death long before the phone was even announced. Jolla decided it was not viable, yet people keep coming back to it again and again with almost religious zeal.
4 Likes
You could use the dents to keep TOH attached as long as they last and then start using the screw holes that Jolla supplied.
I would like it linked to the Privacy Switch: Switch NFC and Bluetooth between Android and SFOS
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the 10Mb/s option would line up with the I3C technology…
Somebody please make a sketch how “slim” a Jolla Phone would be with TOH that has bluetooth chip, Android chip, Zigbee antenna, headphone jack, keyboard and what all people are thinking of here
Quite a big communicator device we would be thinking of… 
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Jolla JP-2 body designers might consider a notch / bay location, intended to provide some additional space to certain space-consuming TOH-setups like 3.5mm sockets / IR-I/O / Geiger–Müller tubes and so forth …
1 Like