Method and device for resetting a system to factory default settings
A method for resetting a system to factory default settings is provided. The method includes: disconnecting-connecting a power source repeatedly; detecting whether a count value of disconnecting-connecting the power source has exceeded a predetermined value; and triggering a procedure of resetting the system to factory default settings when the count value has exceeded the predetermined value.
1. A method for resetting a system to a factory default setting, comprising:
disconnecting-connecting a power source repeatedly;
detecting whether a count value of disconnecting-connecting the power source has exceeded a predetermined value; and
triggering a procedure of resetting the system to a factory default setting when the count value has exceeded the predetermined value,
wherein the system comprises an embedded system, and when the system is connected to the power source, a bootloader and an operation system kernel are executed and loaded by the embedded system, wherein a time for disconnecting-connecting the power source until the count value of disconnecting-connecting the power source has exceeded the predetermined value must be smaller than a time for the embedded system to execute the bootloader and load the operation system kernel in order for the procedure of resetting the system to a factory default setting to be triggered.
2. The method for resetting a system to a factory default setting as claimed in claim 1 , further comprising:
executing a normal procedure according to an original setting when the count value has not exceeded the predetermined value within the time for the embedded system to execute the bootloader and load the operation system kernel.
3. The method for resetting a system to a factory default setting as claimed in claim 1 , wherein the action of disconnecting-connecting the power source is the action of unplugging-plugging an electrical plug from an electrical outlet.
4. A device for resetting a system to a factory default setting, wherein the system is connected to a power source, the device comprising:
a detection unit, configured to detect an action of disconnecting-connecting the system to the power source and keep count of a count value of disconnecting-connecting the system to the power source; and
a decision unit, configured to trigger the resetting of the system to a factory default setting when the count value has exceeded a predetermined value,
wherein the system comprises an embedded system, and when the system is connected to the power source, a bootloader and an operation system kernel are executed and loaded by the embedded system, wherein a time for disconnecting-connecting the power source until the count value of disconnecting-connecting the power source has exceeded the predetermined value must be smaller than a time for the embedded system to execute the bootloader and load the operation system kernel in order for the procedure of resetting the system to a factory default setting to be triggered.
5. The device for resetting a system to a factory default setting as claimed in claim 4 , wherein when the count value counted by the detection unit has not exceeded the predetermined value within the time for the embedded system to execute the bootloader and load the operation system kernel, the system executes a normal procedure according to an original setting.
6. The device for resetting a system to a factory default setting as claimed in claim 4 , wherein the action of disconnecting-connecting the power source is the action of unplugging-plugging an electrical plug from an electrical outlet.
7. A non-transitory machine-readable storage medium comprising a computer program, which, when executed, causes a system to perform a method for resetting the system to a factory default setting, wherein the system is connected to a power source, and the method comprises:
disconnecting-connecting the power source repeatedly;
detecting whether a count value of disconnecting-connecting the power source has exceeded a predetermined value; and
triggering a procedure of resetting the system to a factory default setting when the count value has exceeded the predetermined value,
wherein the system comprises an embedded system, and when the system is connected to the power source, a bootloader and an operation system kernel are executed and loaded by the embedded system, wherein a time for disconnecting-connecting the power source until the count value of disconnecting-connecting the power source has exceeded the predetermined value must be smaller than a time for the embedded system to execute the bootloader and load the operation system kernel in order for the procedure of resetting the system to a factory default setting to be triggered.
8. The non-transitory machine-readable storage medium as claimed in claim 7 , the method further comprising:
executing a normal procedure according to an original setting when the count value has not exceeded the predetermined value within the time for the embedded system to execute the bootloader and load the operation system kernel.
9. The non-transitory machine-readable storage medium as claimed in claim 7 , wherein the action of disconnecting-connecting the power source is the action of unplugging-plugging an electrical plug from an electrical outlet.