I was wondering if it's possible to restore an android default settings without deleting any data or apps? It's because I buy android tablets then I install my app on it then I sell it back to a customer but I want it to go back when it came out of the box to ask for settings again once the customer turns on the device?
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1 Answer
Restoring factory defaults without deleting any apps or data is a contradiction in terms, as that's exactly what the reset does (see: factory-reset).
Could it be you just want your app to survive, but don't care about everything else being reset? That could be done by making the app a system app (see: system-apps), which requires the device to be rooted (see: rooting, root) in the first place.
Apart from that, the answer is "No". As soon as your customer applies a factory-reset, your app will be removed as well.
