Q:"My iPad keeps asking for passcode, but I never set one and never update iOS. Passcodes like 0000 or 1234 is not working. Please help. There is very important data on my tablet." - User from Apple Community

Why does iPad ask for passcode even if you have not set up? The exact cause is unknown, but an increasing number of iPad users have encountered this problem since then. If you are one of them, please don't be alarmed. Not knowing why it occurs does not mean that it can not be solved. Here, to settle the matter of iPad asking for passcode I never set, this guide proposes 3 universal methods.