Devices MUST provide users with a mechanism to perform a “Factory Data Reset” that allows logical and physical deletion of all data except for the following:
All user-generated data MUST be deleted. This MUST satisfy relevant industry standards for data deletion such as NIST SP800-88. This MUST be used for the implementation of the wipeData() API (part of the Android Device Administration API) described in section 3.9 Device Administration.
Devices MAY provide a fast data wipe that conducts a logical data erase.