Please provide following informaiton so we can double check:

• raspberry pi version

• panel size and model name

• the default example with commands you have tried.

• Test command should be:

• ./examples-api-use/demo -D 0 --led-cols=64 --led-rows=32 --led-multiplexing=0

Please also use this check list to check problems by yourself first.

https://www.electrodragon.com/w/MPC1073_Checklist