A hard reset is the first necessary action to clear local user data and prepare the device for administrative lock removal. : Turn off the device completely.
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Lines of green text scrolled across his monitor like falling rain in The Matrix . alcatel 5007u admin lock remove
If you have access to the tablet but cannot uninstall an app because it is set as a "Device Administrator" (common with antivirus or anti-theft apps like Find My Device): A hard reset is the first necessary action