The device calculates a unique mathematical value (checksum) for the downloaded file and compares it to a value provided by the official server. If they match, the file is intact.
Whether you are updating a specialized controller or a standard consumer device, follow these steps: v752btfktp update verified
Powering off a device during the installation phase (after verification) can "brick" the hardware, rendering it unusable. The device calculates a unique mathematical value (checksum)