result: The part is not reset to factory settings!
The function "Restoring Factory Calibration" does not reset to factory
settings. It only removes made calibation settings.
To remove all data and initialize all registers from their flash settings, you
have to execute a software reset:
Turn to Page 3 (DIN = 0x8003) and then set GLOB_CMD = 1 (DIN = 0x8280, then
DIN = 0x8300) to reset the operation, which removes all data, initializes all
registers from their flash settings, and starts data collection. (page 23 of
datasheet revC, section "Software Reset").