Firmware`s upgrade controlling method for e.g. computer, involves assuring resources capable of storing new firmware, confirming checksum of new firmware, and checking if computed hardware ID code is same as that stored in hardware

摘要

The method involves forming and writing a hardware ID code into product hardware. A firmware ID code is formed by filling random numbers in empty spaces. System resources capable of storing a new firmware are assured and a checksum of the new firmware is confirmed. A determination is made to check if a computed hardware ID code of new firmware is same as that stored in the hardware. The new firmware is recorded into a memory.