Ensure the file is from a trusted source. Corrupt firmware can "brick" (permanently disable) your device.
The "Femto Pro" is a common model name for various satellite decoders. These files are used to update channel lists or system features. Download femto pro 28122020 bin
Could you specify the (e.g., Orbbec, or a satellite receiver brand) so I can help you find the exact download link? Ensure the file is from a trusted source