Electronic device provided with theft prevention function, and method for preventing theft of electronic devices

摘要

An electronic device includes a first rewritable nonvolatile memory storing a first lock release code, a comparing portion comparing the first lock release code with a second lock release code that is input with an input device, a controlling portion permitting the electronic device to operate normally if the comparing portion finds that the first lock release code matches the second lock release code, and a first error checking portion checking whether or not there is an error in the first lock release code stored in the first rewritable nonvolatile memory. If the first error checking portion finds an error in the first lock release code stored in the first rewritable nonvolatile memory, the controlling portion permits the electronic device to operate normally regardless of a comparison result obtained by the comparing portion.