paraviz02
lvl.3
United States
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ajohnson-laird Posted at 2017-9-2 10:06
Just to post a follow-up. I took the iPad down to the local Genius at the Apple Store and described the sequence of events that I had observed. The person with whom I spoke agreed that, even if the Go App was maxing out the CPU/GPU, the iPad should have gone into its own thermal shutdown/protection logic, display a warning message and, if necessary power off.
Clearly this didn't happen in my case, and, because the "system on a chip" (SoC, that has the CPU, GPU and (I presume) the RAM), is dead, there was no way to access any of the system logs that might have told us what caused the SoC to pop its clogs. The Genius also observed that he had seen one or two iPad Air 1's that were also completely dead in the past months -- but, of course, not unreasonably, could not be certain of the cause of death because of the lack of syslogs.
My opinion, as a datacenter engineer, is that the DJI GO 4 app has been given reckless access to the iOS system. Maybe it is Apple's fault for not being able to deal with quick overheating events ... or maybe it is DJI's fault for expecting everyone to be flying with the most cutting edge tablet hardware. (No, DJI, the most cutting edge hardware is your technology ... NOT our "viewing tablet".)
But realistically, if the iPad begins overheating, but before the Apple safety measures kick in ... if you are in direct sunlight (or even 100°F ambient temp), that could be enough to push it over the edge completely out of the scope of any preventative measures.
I have literally destroyed an iPad screen (completely unrelated to the horrible firmware) due to heat. So I know for a fact that this is possible with relatively minimal effort. |
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