An electronic device is provided which comprises a memory driver unit (FD) for reading partition headers including encrypted version numbers (X1, X2) from a memory and for writing updated encrypted version numbers (X´1, X´2) to the memory. The electronic device furthermore comprises an update agent unit (UA) for controlling a software of firmware update of the electronic device as well as a one-time programmable memory (OTP) for storing a first value and an encrypt-decrypt unit (EDU) for decrypting the partition headers stored in the memory based on the first value stored in the one-time programmable memory in order to retrieve version numbers of the partition headers. The update agent (UA) is adapted to compare the retrieved version numbers with a version number from a software or firmware update in order to determine whether the version number of the software or firmware update is larger than the retrieved version numbers. The first value is incremented and stored in the one-time programmable memory (OTP) if an update is performed. The encrypt-decrypt unit (EDU) is adapted to encrypt the version numbers of the software or firmware update based on the new first value. The memory driver unit (FD) is adapted to write a new partition header with the updated encrypted version numbers into the memory.