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I'm selling a lot of low cost A10 Allwinner tablets (Android 4.0.4). Some of my customers say that their tablet has been factory resetting (like anyone can do using the volume up/power buttons trick).

When a factory reset is automatically applied? Can a high battery drain cause the reset?

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Battery drain shouldn't cause a factory reset, but it's hard to say what the tablet might be doing under those conditions. A factory reset ough to never happen without being manually triggered except perhaps in the case of some security feature (e.g., after failed attempts to password unlock it). –  Matthew Read Dec 18 '12 at 0:08
Thanks for editing my question. Yes I expect that no factory reset is applied without the user's confirm. So you're saying that Android will never do it in any case. I found someone else have the same problem: androidforums.com/sprint-hero-all-things-root/… Thanks for your comment. –  Seraphim's host Dec 18 '12 at 9:28
A factory reset can be applied to Android phones using the USSD attack. It's not my case, just for your knowledge. –  Seraphim's host Dec 18 '12 at 9:40
Another case. Someone claims the problems is in the Android build installed in the tablet: androidqueries.com/… –  Seraphim's host Dec 18 '12 at 9:50
@Seraphim'shost Possible to let us know what tablets you are selling? –  Jack Dec 19 '12 at 4:33

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