How to check if a new Android phone/tablet has got no factory reset yet? I would like to buy a factory-new tablet (Galaxy Tab S6) so I would like to check if the device has ever turned on (since the production date) and also how to make sure no factory reset has done yet.
You can use ##786#. You can check RTN status of mobile. But you need to access hidden menu then you can use this code.
You can find uptime of mobile Go to setting / about phone / uptime. Compare it with date of purchase.