Originally Posted by
nick1austin
Phones/tablets timestamp almost everything they do and this can be extracted forensically. If the passengers asphyxiated there will be no user-initiated activity from that point on.
I wonder whether something doesn't already suggest that since when the satcom link logged back on around 18:25:
The IFE equipment set up two ground connections over SATCOM (for the SMS e-mail application and Built-In Test Equipment (BITE) application) after the SATCOM re-established the link at 18:25 UTC, 07 March 2014 (normal), but not after the SATCOM re-established the link at 00:19 UTC, 08 March (abnormal).
At no time during the flight was any user data sent over the link by means of the SMS/e-Mail application.