Why do I see Error (18950), Error (18948) and Error (209012) when program SOF file for Agilex® 5 FPGA device in Quartus® Prime Pro Edition version 26.3 ?

Description

You may encounter programming failure in Quartus® Prime Pro Edition Software version 26.3 with an Agilex® 5 FPGA device SOF File.

The operation fails with the following errors:

Error(18950): Device has stopped receiving configuration data
Error(18948): Error message received from device: Failed to load firmware due to authentication failure. Ensure the firmware is signed with the correct signing key.
Error(209012): Operation failed 

Impacted Agilex 5 OPN

• A5Dx130xxxxxxxx
• A5Dx160xxxxxxxx

Resolution

Contact Altera Support team for the patch file.

Related Article

• Agilex® 5 FPGA Part Number Decoder