In order to determine which declaration of conformity you depend on, you must first know the serial number (S/N) of your device. This number is a 13-digit number. This is visible on the sticker under the phone's battery.
If your serial number is less than 1939xxxxxxxxxxxxx, your product depends on the declaration of conformity V1. If your serial number starts (or is greater than) 1939xxxxxxxxxxxxx, your product depends on the declaration of conformity V2. You can now consult the declaration of conformity corresponding to your product by clicking on the following links.