I haven’t run across many discarded usb cables that couldn’t have their fault corrected inside of five minutes. All you need is a simple breakout that will connect through the existing opening in the device’s case, and you’ve got your USB port back. They have a quite nice mic setup on board but even listening for the “wake up” word, they need to be, and are, completely awake and transmitting.

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My experience with kindle tablets, ps4 controllers and numerous other devices is that the Micro B jacks are way more fragile than their mini and standard sized brethren.

Maybe other physical phenomenas too like miniscule oscillations in CPU’s voltage regulator – this can be sensed and decoded although voice quality is abysmal. For example, he found that driving one of the pins high would trigger the Dot to mute its microphones; which could be useful for anyone looking to cover Alexa’s ears. If you really want a “cover your ears” feature I would suggest doing something more direct than setting some pin high. The useful thing, would be to add something like a Ras Pi, other powerful ARM boards are available, with an off-line voice-rec thing listening for a trigger word.

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That won’t work because it’s likely that they’re also using “microphonics” effect of ceramic capacitors. does the device support 20v or is it going to fry when it’s circuitry that expects 5v encounters 20v? after throwing away the *th micro usb cable this month because it would not charge my phone anymore, i completely understand the switch to barrel jack. Brian] found that the Dot shows up as a Mediatek device under Linux using lsusb, and fastboot can see it and even confirms the presence of a locked bootloader. It was covered in the previous teardown, but there’s a physical chip that cuts power to the microphones (or at least, the ADCs) when it gets the signal.Having lost zero devices to bad USB-A/Mini-B devices to bad ports, but countless cables, I see the trade-off differently. and of course the way young adults “unplug” their phones by jerking at the cable or bending the connector.

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She’s in her mid-90s and partially sighted, plus the obvious mobility/dexterity issues of old age; so its a pretty ideal solution. Similarly, i bought both her and my grandpa kindles the best part of a decade ago when their eyesight began to get steadily worse. You’re significantly more likely to run a cable over with a chair than you are to ever wear out the springiness of your contacts.its not only the springly thing, but also the horrible flimsy way the cable is attached to the male micro-usb connector in most cables.