FIELD: physics, computer engineering.
SUBSTANCE: invention relates to license management. A licence management device initiates the transition of a wireless device to a state where all functions are restricted usage functions by rewriting key information of the wireless device with a standard key which is specific for the wireless device. A key generating device generates an update key which is specific for the wireless device and transmits the update key to the licence management device. The licence management device may lift the restriction on the function in the wireless device by applying the update key to the key information of the wireless device rewritten by the standard key.
EFFECT: efficient licence management.
8 cl, 8 dwg
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