Quote:
Originally Posted by j.p.s
Clock drift rate under identical conditions will vary among individual kindles and probaly among kindle models. On top of that, the moving average temperarure history experienced by each kindle will vary.
It is an exercise in futility to try to predict a time duration of airplane mode needed to trigger book deletion that applies to all kindles, if these deletions are being caused by clock drift.
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Shouldn't you be able to to manually induce this by draining a kindle's battery, to the point where it's RTC cannot run, before plugging it back in?
Quote:
Originally Posted by JSWolf
I'm waiting a week to turn WiFi back on. I'm going sync and leave WiFi on for a few hours and see what happens. If nothing gets removed I'll wait two weeks and try again. I want to know how long (roughly) WiFi has to be off before eBooks get removed.
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It might be easier for you to run the kindle until it's battery is dead and it forcibly shuts off, then wait a few days (for the battery voltage to drop below what the RTC requires), and plug it in. If the system clock is no longer correct (provided you had set it correctly prior), then you've induced a drift.
This does wear out the kindle's battery, but considering some people who experience this have their kindles disconnected for months, it should be more quickly reproducible.