Teardown:
Pictures
https://i.imgur.com/aqtPsR9.jpg
https://i.imgur.com/pvrMpoe.jpg
https://i.imgur.com/WFQxKd2.jpg
https://i.imgur.com/3gP7CLt.jpg
https://i.imgur.com/R3qBAvT.jpg
Information:
Known issues:
Yes, all the watches use a pcb that comes from the same solution provider. So they are all very similar but also all have subtle differences depending on the model.
Updated: added more teardown photos and kernel source.
We have a dedicated developer section here.
Do you mind if I move this to that section and you can have your own thread?
Great! Finger crossed for new Android Development for MT6739.
We have a developer section here.
You’d be surprised what is here 
I’m surprised it’s not more popular than it is but hopefully it will pick up 
I’ll move this later.
I have seen it and the section is a bit unremarkable except for TWRP and rooting availability. care to point to a specific thread for development which is more oriented towards android development?
That’s fine by me, i posted it here because it is currently mostly focused on the LEM12, with support pending on the other C7S devices.
Btw, the primarily reason for the teardown was a non-working power button. It started to work again after the first teardown, but got locked again today.
Turns out one of the o-rings (for water protection) was disintegrating and kept the button locked in position:
Can’t say that i’m very pleased by such nuisances…
Yes. It is a bad design flaw and reported to Lemfo.
Problem is that these are obviously mass produced and have already been assembled and sold. 
Retro fit is not possible.
Only future production can be addressed unfortunately.
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