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If Edward Snowden is to be believed then you can only be sure your phone is truly off when the battery is out.
by ghostpepper 7y ago
If Edward Snowden is to be believed then you can only be sure your phone is truly off when the battery is out.
- bdamm 7y agoYes, sadly phones with removable batteries seem to be antiques now.
- abawany 7y agoThere are still plenty of slightly-used phones with removable batteries that work quite well. Galaxy Note 3 and 4 (possibly 5?) for a start. I recently got a Moto E5 brand new and it too has a removable battery.
- a1369209993 7y agoNot even then; many electronic devices (PCs, for example!) have coin-cell backup batterys or large capacitors to keep RTCs and the like running during a battery replacement (or mains power outage).
- im3w1l 7y agoSince radio and gps use a lot of battery, I wonder if a coincell could really power them.
- deleted 7y ago[deleted]
- a1369209993 7y agoYou don't actually need to transmit the data off a backup battery, just store it and ship it out once a proper power supply is reattached. (You lose the data if someone destroys their phone, but that's a much narrower range of scenarios than "turn it off, but for real".) I don't recall GPS recievers being particularly power-intensive, but there's plenty of other sensors to log, most notably the microphone.
- im3w1l 7y agoYou don't use your phone for navigation a lot do you? It drains the battery very quickly. I mentioned radio, because wifi / cell tower triangulation can be used to infer location.